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Detailed Release Notes for PMD 7 These are the detailed release notes for PMD 7. pmd_release_notes_pmd7.html changelog, release notes

🚀 Major Features and Enhancements

Many of you probably have already seen the new logo, but now it's time to actually ship it. The new logo was long ago decided (see #1663).

We decided it's time to have a modernized logo and get rid of the gun. This allows to include the logo anywhere without offense.

The official logo is also without a tagline (such as "Code Quality Matters!") as the tagline created some controversies. Without a tagline, we are not limited in the direction of future development of PMD.

New PMD Logo

The new logo is available from the Logo Project Page.

Revamped Java

The Java grammar has been refactored substantially in order to make it easier to maintain and more correct regarding the Java Language Specification. It supports now also the edge-cases where PMD 6 was failing (e.g. annotations were not supported everywhere). Changing the grammar entails a changed AST and therefore changed rules. The PMD built-in rules have all been upgraded and many bugs have been fixed on the way. Unfortunately, if you are using custom rules, you will most probably need to accommodate these changes yourself.

The type resolution framework has been rewritten from scratch and should now cover the entire Java spec correctly. The same is true for the symbol table. PMD 6 on the other hand has always had problems with advanced type inference, e.g. with lambdas and call chains. Since it was built on the core reflection API, it also was prone to linkage errors and classloader leaks for instance. PMD 7 does not need to load classes, and does not have these problems.

The AST exposes much more semantic information now. For instance, you can jump from a method call to the declaration of the method being called, or from a field access to the field declaration. These improvements allow interesting rules to be written that need precise knowledge of the types in the program, for instance to detect UnnecessaryBoxing or UseDiamondOperator. These are just a small preview of the new rules we will be adding in the PMD 7 release cycle.

Overall, the changes to the parser, AST, type resolution and symbol table code has made PMD for Java significantly faster. On average, we have seen ~2-3X faster analysis, but as usual, this may change depending on your workload, configuration and ruleset.

Contributors: Clément Fournier (@oowekyala), Andreas Dangel (@adangel), Juan Martín Sotuyo Dodero (@jsotuyod)

Note: The full detailed documentation of the changes to the Java AST are available in the [Migration Guide for PMD 7](pmd_userdocs_migrating_to_pmd7.html#java-ast)

Revamped Command Line Interface

PMD now ships with a unified Command Line Interface for both Linux/Unix and Windows. Instead of having a collection of scripts for the different utilities shipped with PMD, a single script pmd (pmd.bat for Windows) can now launch all utilities using subcommands, e.g. pmd check, pmd designer. All commands and options are thoroughly documented in the help, with full color support where available. Moreover, efforts were made to provide consistency in the usage of all PMD utilities.

$ Usage: pmd [-hV] [COMMAND]
  -h, --help      Show this help message and exit.
  -V, --version   Print version information and exit.
Commands:
  check     The PMD standard source code analyzer
  cpd       Copy/Paste Detector - find duplicate code
  designer  The PMD visual rule designer
  cpd-gui   GUI for the Copy/Paste Detector
              Warning: May not support the full CPD feature set
  ast-dump  Experimental: dumps the AST of parsing source code
Exit Codes:
  0   Successful analysis, no violations found
  1   An unexpected error occurred during execution
  2   Usage error, please refer to the command help
  4   Successful analysis, at least 1 violation found

For instance, where you previously would have run

run.sh pmd -d src -R ruleset.xml

you should now use

pmd check -d src -R ruleset.xml

or even better, omit using -d / --dir and simply pass the sources at the end of the parameter list

pmd check -R ruleset.xml src

Multiple source directories can be passed, such as:

pmd check -R ruleset.xml src/main/java src/test/java

And the exact same applies to CPD:

pmd cpd --minimum-tokens 100 src/main/java

Additionally, the CLI for the check command has been enhanced with a progress bar, which interactively displays the current progress of the analysis.

Demo

This can be disabled with the --no-progress flag.

Finally, we now provide a completion script for Bash/Zsh to further help daily usage. To use it, edit your ~/.bashrc / ~/.zshrc file and add the following line:

source <(pmd generate-completion)

Contributors: Juan Martín Sotuyo Dodero (@jsotuyod)

Full Antlr support

PMD 6 only supported JavaCC based grammars, but with Antlr parsers can be generated as well. Languages backed by an Antlr grammar are now fully supported. This means, it's now possible not only to use Antlr grammars for CPD, but we can actually build full-fledged PMD rules for them as well. Both the traditional Java visitor rules, and the simpler XPath rules are available to users. This allows to leverage existing grammars.

We expect this to enable both our dev team and external contributors to largely extend PMD usage for more languages.

Two languages (Swift and Kotlin) already use this new possibility.

See the documentation page Adding a new language with ANTLR for instructions on how to use this new feature.

Contributors: Lucas Soncini (@lsoncini), Matías Fraga (@matifraga), Tomás De Lucca (@tomidelucca)

Updated PMD Designer

This PMD release ships a new version of the pmd-designer. The designer artifact has been renamed from "pmd-ui" to "pmd-designer". While the designer still works with Java 8, the recommended Java Runtime is Java 11 (or later) with OpenJFX 17 (or later).

For the detailed changes, see

New CPD report format cpdhtml-v2.xslt

Thanks to @mohan-chinnappan-n a new CPD report format has been added which features a data table. It uses an XSLT stylesheet to convert CPD's XML format into HTML.

See the example report.

Contributors: Mohan Chinnappan (@mohan-chinnappan-n)

🎉 Language Related Changes

New: CPD support for Apache Velocity Template Language (VTL)

PMD supported Apache Velocity for a very long time, but the CPD integration never got finished. This is now done and CPD supports Apache Velocity Template language for detecting copy and paste. It is shipped in the module pmd-velocity.

New: CPD support for Coco

Thanks to a contribution, CPD now supports Coco, a modern programming language designed specifically for building event-driven software. It is shipped in the new module pmd-coco.

Contributors: Wener (@wener-tiobe)

New: CPD support for Julia

Thanks to a contribution, CPD now supports the Julia language. It is shipped in the new module pmd-julia.

Contributors: Wener (@wener-tiobe)

New: CPD support for TypeScript

Thanks to a contribution, CPD now supports the TypeScript language. It is shipped with the rest of the JavaScript support in the module pmd-javascript.

Contributors: Paul Guyot (@pguyot)

New: Java 21 and 22 Support

This release of PMD brings support for Java 21 and 22. There are the following new standard language features, that are supported now:

PMD also supports the following preview language features:

In order to analyze a project with PMD that uses these preview language features, you'll need to enable it via the environment variable PMD_JAVA_OPTS and select the new language version 22-preview:

export PMD_JAVA_OPTS=--enable-preview
pmd check --use-version java-22-preview ...

Note: Support for Java 19 and Java 20 preview language features have been removed. The versions "19-preview" and "20-preview" are no longer available.

New: Kotlin support

PMD now supports Kotlin as an additional language for analyzing source code. It is based on the official kotlin Antlr grammar for Kotlin 1.8. Java-based rules and XPath-based rules are supported.

We are shipping the following rules:

  • FunctionNameTooShort finds functions with a too short name.
  • OverrideBothEqualsAndHashcode finds classes with only either equals or hashCode overridden, but not both. This leads to unexpected behavior once instances of such classes are used in collections (Lists, HashMaps, ...).

Contributors: Jeroen Borgers (@jborgers), Peter Paul Bakker (@stokpop)

New: Swift support

Given the full Antlr support, PMD now fully supports Swift for creating rules. Previously only CPD was supported.

Note: There is only limited support for newer Swift language features in the parser, e.g. Swift 5.9 (Macro Expansions) are supported, but other features are not.

We are pleased to announce we are shipping a number of rules starting with PMD 7.

  • ForceCast flags all force casts, making sure you are defensively considering all types. Having the application crash shouldn't be an option.
  • ForceTry flags all force tries, making sure you are defensively handling exceptions. Having the application crash shouldn't be an option.
  • ProhibitedInterfaceBuilder flags any usage of interface builder. Interface builder files are prone to merge conflicts, and are impossible to code review, so larger teams usually try to avoid it or reduce its usage.
  • UnavailableFunction flags any function throwing a fatalError not marked as @available(*, unavailable) to ensure no calls are actually performed in the codebase.

Contributors: Lucas Soncini (@lsoncini), Matías Fraga (@matifraga), Tomás De Lucca (@tomidelucca)

Changed: Apex Support: Replaced Jorje with fully open source front-end

When PMD added Apex support with version 5.5.0, it utilized the Apex Jorje library to parse Apex source and generate an AST. This library is however a binary-blob provided as part of the Salesforce Extensions for VS Code, and it is closed-source.

This causes problems, if binary blobs are not allowed by e.g. a company-wide policy. In that case, the Jorje library prevented that PMD Apex could be used at all.

Also having access to the source code, enhancements and modifications are easier to do.

Under the hood, we use two open source libraries instead:

  • apex-parser originally by Kevin Jones (@nawforce). This project provides the grammar for a ANTLR based parser.
  • Summit-AST by Google (@google) This project translates the ANTLR parse tree into an AST, that is similar to the AST Jorje provided. Note: This is not an official Google product.

Although the parsers is completely switched, there are only little known changes to the AST. These are documented in the Migration Guide for PMD 7: Apex AST. With the new Apex parser, the new language constructs like User Mode Database Operations and the new Null Coalescing Operator ?? can be parsed now. PMD should be able to parse Apex code up to version 60.0 (Spring '24).

See #3766 for details.

Contributors: Aaron Hurst (@aaronhurst-google), Edward Klimoshenko (@eklimo)

Changed: CPP can now ignore identifiers in sequences (CPD)

  • New command line option for CPD: --ignore-sequences.
  • This option is used for CPP only: with the already existing option --ignore-literal-sequences, only literals were ignored. The new option additionally ignores identifiers as well in sequences.
  • See PR #4470 for details.

Changed: Groovy Support (CPD)

  • We now support parsing all Groovy features from Groovy 3 and 4.
  • We now support suppression through CPD-ON/CPD-OFF comment pairs.
  • See PR #4726 for details.

Changed: HTML support

Support for HTML was introduced in PMD 6.55.0 as an experimental feature. With PMD 7.0.0 this is now considered stable.

Changed: JavaScript support

The JS specific parser options have been removed. The parser now always retains comments and uses version ES6. The language module registers a couple of different versions. The latest version, which supports ES6 and also some new constructs (see Rhino), is the default. This should be fine for most use cases.

Changed: Language versions

We revisited the versions that were defined by each language module. Now many more versions are defined for each language. In general, you can expect that PMD can parse all these different versions. There might be situations where this fails and this can be considered a bug. Usually the latest version is selected as the default language version.

The language versions can be used to mark rules to be useful only for a specific language version via the minimumLanguageVersion and maximumLanguageVersion attributes. While this feature is currently only used by the Java module, listing all possible versions enables other languages as well to use this feature.

Related issue: [core] Explicitly name all language versions (#4120)

Changed: Rule properties

  • The old deprecated classes like IntProperty and StringProperty have been removed. Please use PropertyFactory to create properties.
  • All properties which accept multiple values now use a comma (,) as a delimiter. The previous default was a pipe character (|). The delimiter is not configurable anymore. If needed, the comma can be escaped with a backslash.
  • The min and max attributes in property definitions in the XML are now optional and can appear separately or be omitted.

Changed: Velocity Template Language (VTL)

The module was named just "vm" which was not a good name. Its module name, language id and package names have been renamed to "velocity".

If you import rules, you also need to adjust the paths, e.g.

  • category/vm/... ➡️ category/velocity/...

Changed: Visualforce

There was an inconsistency between the naming of the maven module and the language id. The language id used the abbreviation "vf", while the maven module used the longer name "visualforce". This has been solved by renaming the language module to its full name "visualforce". The java packages have been renamed as well.

If you import rules, you also need to adjust the paths, e.g.

  • category/vf/security.xml ➡️ category/visualforce/security.xml

🌟 New and changed rules

New Rules

Apex

Java

  • UnnecessaryBoxing reports boxing and unboxing conversions that may be made implicit.
  • UseExplicitTypes reports usages of var keyword, which was introduced with Java 10.

Kotlin

  • FunctionNameTooShort finds functions with a too short name.
  • OverrideBothEqualsAndHashcode finds classes with only either equals or hashCode overridden, but not both. This leads to unexpected behavior once instances of such classes are used in collections (Lists, HashMaps, ...).

Swift

  • ForceCast flags all force casts, making sure you are defensively considering all types. Having the application crash shouldn't be an option.
  • ForceTry flags all force tries, making sure you are defensively handling exceptions. Having the application crash shouldn't be an option.
  • ProhibitedInterfaceBuilder flags any usage of interface builder. Interface builder files are prone to merge conflicts, and are impossible to code review, so larger teams usually try to avoid it or reduce its usage.
  • UnavailableFunction flags any function throwing a fatalError not marked as @available(*, unavailable) to ensure no calls are actually performed in the codebase.

XML

Changed Rules

General changes

Apex General changes

  • The properties cc_categories, cc_remediation_points_multiplier, cc_block_highlighting have been removed from all rules. These properties have been deprecated since PMD 6.13.0. See issue #1648 for more details.

Apex Codestyle

  • MethodNamingConventions: The deprecated rule property skipTestMethodUnderscores has been removed. It was actually deprecated since PMD 6.15.0, but was not mentioned in the release notes back then. Use the property testPattern instead to configure valid names for test methods.

Java General changes

  • Violations reported on methods or classes previously reported the line range of the entire method or class. With PMD 7.0.0, the reported location is now just the identifier of the method or class. This affects various rules, e.g. CognitiveComplexity.

    The report location is controlled by the overrides of the method Node#getReportLocation in different node types.

    See issue #4439 and issue #730 for more details.

Java Best Practices

  • ArrayIsStoredDirectly: Violations are now reported on the assignment and not anymore on the formal parameter. The reported line numbers will probably move.
  • AvoidReassigningLoopVariables: This rule might not report anymore all reassignments of the control variable in for-loops when the property forReassign is set to skip. See issue #4500 for more details.
  • LooseCoupling: The rule has a new property to allow some types to be coupled to (allowedTypes).
  • UnusedLocalVariable: This rule has some important false-negatives fixed and finds many more cases now. For details see issues #2130, #4516, and #4517.

Java Codestyle

  • MethodNamingConventions: The property checkNativeMethods has been removed. The property was deprecated since PMD 6.3.0. Use the property nativePattern to control whether native methods should be considered or not.
  • ShortVariable: This rule now also reports short enum constant names.
  • UseDiamondOperator: The property java7Compatibility has been removed. The rule now handles Java 7 properly without a property.
  • UnnecessaryFullyQualifiedName: The rule has two new properties, to selectively disable reporting on static field and method qualifiers. The rule also has been improved to be more precise.
  • UselessParentheses: The rule has two new properties which control how strict the rule should be applied. With ignoreClarifying (default: true) parentheses that are strictly speaking not necessary are allowed, if they separate expressions of different precedence. The other property ignoreBalancing (default: true) is similar, in that it allows parentheses that help reading and understanding the expressions.
  • EmptyControlStatement: The rule has a new property to allow empty blocks when they contain a comment (allowCommentedBlocks).

Java Design

  • CyclomaticComplexity: The property reportLevel has been removed. The property was deprecated since PMD 6.0.0. The report level can now be configured separated for classes and methods using classReportLevel and methodReportLevel instead.
  • ImmutableField: The property ignoredAnnotations has been removed. The property was deprecated since PMD 6.52.0.
  • LawOfDemeter: The rule has a new property trustRadius. This defines the maximum degree of trusted data. The default of 1 is the most restrictive.
  • NPathComplexity: The property minimum has been removed. It was deprecated since PMD 6.0.0. Use the property reportLevel instead.
  • SingularField: The properties checkInnerClasses and disallowNotAssignment have been removed. The rule is now more precise and will check these cases properly.
  • UseUtilityClass: The property ignoredAnnotations has been removed.

Java Documentation

  • CommentContent: The properties caseSensitive and disallowedTerms are removed. The new property forbiddenRegex can be used now to define the disallowed terms with a single regular expression.
  • CommentRequired:
    • Overridden methods are now detected even without the @Override annotation. This is relevant for the property methodWithOverrideCommentRequirement. See also pull request #3757.
    • Elements in annotation types are now detected as well. This might lead to an increased number of violations for missing public method comments.
    • The deprecated property headerCommentRequirement has been removed. Use the property classCommentRequirement instead.
  • CommentSize: When determining the line-length of a comment, the leading comment prefix markers (e.g. * or //) are ignored and don't add up to the line-length. See also pull request #4369.

Java Error Prone

  • AvoidDuplicateLiterals: The property exceptionfile has been removed. The property was deprecated since PMD 6.10.0. Use the property exceptionList instead.
  • DontImportSun: sun.misc.Signal is not special-cased anymore.
  • EmptyCatchBlock: CloneNotSupportedException and InterruptedException are not special-cased anymore. Rename the exception parameter to ignored to ignore them.
  • ImplicitSwitchFallThrough: Violations are now reported on the case statements rather than on the switch statements. This is more accurate but might result in more violations now.
  • NonSerializableClass: The deprecated property prefix has been removed without replacement. In a serializable class all fields have to be serializable regardless of the name.

Deprecated Rules

In PMD 7.0.0, there are no deprecated rules.

Removed Rules

The following previously deprecated rules have been finally removed:

Apex

Java

Removed rulesets

The following previously deprecated rulesets have been removed. These were the left-over rulesets from PMD 5. The rules have been moved into categories with PMD 6.

  • rulesets/apex/apexunit.xml
  • rulesets/apex/braces.xml
  • rulesets/apex/complexity.xml
  • rulesets/apex/empty.xml
  • rulesets/apex/metrics.xml
  • rulesets/apex/performance.xml
  • rulesets/apex/ruleset.xml
  • rulesets/apex/securty.xml
  • rulesets/apex/style.xml
  • rulesets/java/android.xml
  • rulesets/java/basic.xml
  • rulesets/java/clone.xml
  • rulesets/java/codesize.xml
  • rulesets/java/comments.xml
  • rulesets/java/controversial.xml
  • rulesets/java/coupling.xml
  • rulesets/java/design.xml
  • rulesets/java/empty.xml
  • rulesets/java/finalizers.xml
  • rulesets/java/imports.xml
  • rulesets/java/j2ee.xml
  • rulesets/java/javabeans.xml
  • rulesets/java/junit.xml
  • rulesets/java/logging-jakarta-commons.xml
  • rulesets/java/logging-java.xml
  • rulesets/java/metrics.xml
  • rulesets/java/migrating.xml
  • rulesets/java/migrating_to_13.xml
  • rulesets/java/migrating_to_14.xml
  • rulesets/java/migrating_to_15.xml
  • rulesets/java/migrating_to_junit4.xml
  • rulesets/java/naming.xml
  • rulesets/java/optimizations.xml
  • rulesets/java/strictexception.xml
  • rulesets/java/strings.xml
  • rulesets/java/sunsecure.xml
  • rulesets/java/typeresolution.xml
  • rulesets/java/unnecessary.xml
  • rulesets/java/unusedcode.xml
  • rulesets/ecmascript/basic.xml
  • rulesets/ecmascript/braces.xml
  • rulesets/ecmascript/controversial.xml
  • rulesets/ecmascript/unnecessary.xml
  • rulesets/jsp/basic.xml
  • rulesets/jsp/basic-jsf.xml
  • rulesets/plsql/codesize.xml
  • rulesets/plsql/dates.xml
  • rulesets/plsql/strictsyntax.xml
  • rulesets/plsql/TomKytesDespair.xml
  • rulesets/vf/security.xml
  • rulesets/vm/basic.xml
  • rulesets/pom/basic.xml
  • rulesets/xml/basic.xml
  • rulesets/xsl/xpath.xml
  • rulesets/releases/*

💥 Compatibility and Migration Notes

Note: The full detailed documentation of the changes are available in the [Migration Guide for PMD 7](pmd_userdocs_migrating_to_pmd7.html)

For endusers

  • PMD 7 requires Java 8 or above to execute.

  • CLI changed: Custom scripts need to be updated (run.sh pmd ... ➡️ pmd check ..., run.sh cpd ... ➡️ pmd cpd ...).

  • Java module revamped: Custom rules need to be updated.

  • Removed rules: Custom rulesets need to be reviewed. See above for a list of new and removed rules.

  • XPath 1.0 and 2.0 support is removed, violationSuppressXPath now requires XPath 3.1: Custom rulesets need to be reviewed.

  • Custom rules using rulechains: Need to override AbstractRule#buildTargetSelector using RuleTargetSelector#forTypes.

  • The asset filenames of PMD on GitHub Releases are now pmd-dist-<version>-bin.zip, pmd-dist-<version>-src.zip and pmd-dist-<version>-doc.zip. Keep that in mind, if you have an automated download script.

    The structure inside the ZIP files stay the same, e.g. we still provide inside the binary distribution ZIP file the base directory pmd-bin-<version>.

  • For maven-pmd-plugin usage, see Using PMD 7 with maven-pmd-plugin.

  • For gradle users, at least gradle 8.6 is required for PMD 7.

For integrators

  • PMD 7 is a major release where many things have been moved or rewritten.
  • All integrators will require some level of change to adapt to the change in the API.
  • For more details look at the deprecations notes of the past PMD 6 releases. These are collected below under API Changes.
  • The PMD Ant tasks, which were previously in the module pmd-core has been moved into its own module pmd-ant, which needs to be added explicitly now as an additional dependency.
  • The CLI classes have also been moved out of pmd-core into its own module pmd-cli. The old entry point, the main class PMD is gone.

🚨 API

The API of PMD has been growing over the years and needed some cleanup. The goal is, to have a clear separation between a well-defined API and the implementation, which is internal. This should help us in future development.

This however entails some incompatibilities and deprecations.

See ADR 3 - API evolution principles and API changes below.

Small Changes and cleanups

  • #1648: [apex,vf] Remove CodeClimate dependency - Robert Sösemann Properties "cc_categories", "cc_remediation_points_multiplier", "cc_block_highlighting" can no longer be overridden in rulesets. They were deprecated without replacement.

  • The old GUI applications accessible through run.sh designerold and run.sh bgastviewer (and corresponding Batch scripts) have been removed from the PMD distribution. Please use the newer rule designer with pmd designer. The corresponding classes in packages java.net.sourceforge.pmd.util.viewer and java.net.sourceforge.pmd.util.designer have all been removed.

  • All API related to XPath support has been moved to the package net.sourceforge.pmd.lang.rule.xpath. This includes API that was previously dispersed over net.sourceforge.pmd.lang, net.sourceforge.pmd.lang.ast.xpath, net.sourceforge.pmd.lang.rule.xpath, net.sourceforge.pmd.lang.rule, and various language-specific packages (which were made internal).

  • The implementation of the Ant integration has been moved from the module pmd-core to a new module pmd-ant. This involves classes in package net.sourceforge.pmd.ant. The ant CPDTask class net.sourceforge.pmd.cpd.CPDTask has been moved into the same package net.sourceforge.pmd.ant. You'll need to update your taskdef entries in your build.xml files with the FQCN net.sourceforge.pmd.ant.CPDTask if you use it anywhere.

  • Utility classes in net.sourceforge.pmd.util, that have previously marked as @InternalApi have been finally moved to an internal sub package and are now longer available. This includes ClasspathClassLoader, FileFinder, FileUtil, and IOUtil.

  • The following utility classes in net.sourceforge.pmd.util are now considered public API:

  • Moved the two classes AntlrCpdLexer and JavaccCpdLexer from internal package into package net.sourceforge.pmd.cpd.impl. These two classes are part of the API and are base classes for CPD language implementations. Since 7.0.0-rc2. Note: These two classes have been previously called "AntlrTokenizer" and "JavaCCTokenizer".

  • AntlrBaseRule is gone in favor of AbstractVisitorRule. Since 7.0.0-rc2.

  • The classes net.sourceforge.pmd.lang.kotlin.ast.KotlinInnerNode and net.sourceforge.pmd.lang.swift.ast.SwiftInnerNode are package-private now. Since 7.0.0-rc2.

XPath 3.1 support

Support for XPath versions 1.0, 1.0-compatibility, 2.0 was removed. The default (and only) supported XPath version is now XPath 3.1. This version of the XPath language is mostly identical to XPath 2.0.

Notable changes:

  • The deprecated support for sequence-valued attributes is removed. Sequence-valued properties are still supported.
  • Refer to the Saxonica documentation for an introduction to new features in XPath 3.1.

Node stream API for AST traversal

This version includes a powerful API to navigate trees, similar in usage to the Java 8 Stream API:

node.descendants(ASTMethodCall.class)
    .filter(m -> "toString".equals(m.getMethodName()))
    .map(m -> m.getQualifier())
    .filter(q -> TypeTestUtil.isA(String.class, q))
    .foreach(System.out::println);

A pipeline like shown here traverses the tree lazily, which is more efficient than traversing eagerly to put all descendants in a list. It is also much easier to change than the old imperative way.

To make this API as accessible as possible, the Node interface has been fitted with new methods producing node streams. Those methods replace previous tree traversal methods like Node#findDescendantsOfType. In all cases, they should be more efficient and more convenient.

See NodeStream for more details.

Contributors: Clément Fournier (@oowekyala)

Metrics framework

The metrics framework has been made simpler and more general.

  • The metric interface takes an additional type parameter, representing the result type of the metric. This is usually Integer or Double. It avoids widening the result to a double just to narrow it down.

    This makes it so, that Double.NaN is not an appropriate sentinel value to represent "not supported" anymore. Instead, computeFor may return null in that case (or a garbage value). The value null may have caused problems with the narrowing casts, which through unboxing, might have thrown an NPE. But when we deprecated the language-specific metrics façades to replace them with the generic MetricsUtil, we took care of making the new methods throw an exception if the metric cannot be computed on the parameter. This forces you to guard calls to MetricsUtil#computeMetric (and other overloads) with something like if (metric.supports(node)). If you're following this pattern, then you won't observe the undefined behavior.

  • The MetricKey interface is not so useful and has been merged into the Metric interface and removed. So the Metric interface has the new method displayName.

  • The framework is not tied to at most 2 node types per language anymore. Previously those were nodes for classes and for methods/constructors. Instead, many metrics support more node types. For example, NCSS can be computed on any code block.

    For that reason, keeping around a hard distinction between "class metrics" and "operation metrics" is not useful. So in the Java framework for example, we removed the interfaces JavaClassMetric, JavaOperationMetric, abstract classes for those, JavaClassMetricKey, and JavaOperationMetricKey. Metric constants are now all inside the JavaMetrics utility class. The same was done in the Apex framework.

    We don't really need abstract classes for metrics now. So AbstractMetric is also removed from pmd-core. There is a factory method on the Metric interface to create a metric easily.

  • This makes it so, that LanguageMetricsProvider does not need type parameters. It can just return a Set<Metric<?, ?>> to list available metrics.

  • Signatures, their implementations, and the interface SignedNode have been removed. Node streams allow replacing their usages very easily.

Testing framework

  • PMD 7 has been upgraded to use JUnit 5 only. That means, that JUnit4 related classes have been removed, namely
    • net.sourceforge.pmd.testframework.PMDTestRunner
    • net.sourceforge.pmd.testframework.RuleTestRunner
    • net.sourceforge.pmd.testframework.TestDescriptor
  • Rule tests, that use SimpleAggregatorTst or PmdRuleTst work as before without change, but use now JUnit5 under the hood. If you added additional JUnit4 tests to your rule test classes, then you'll need to upgrade them to use JUnit5.

Language Lifecycle and Language Properties

  • Language modules now provide a proper lifecycle and can store global information. This enables the implementation of multifile analysis.
  • Language modules can define custom language properties which can be set via environment variables. This allows to add and use language specific configuration options without the need to change pmd-core.

The documentation page has been updated: Adding a new language with JavaCC and Adding a new language with ANTLR

Related issue: [core] Language lifecycle (#3782)

Rule properties

  • The old deprecated classes like IntProperty and StringProperty have been removed. Please use PropertyFactory to create properties.
  • All properties which accept multiple values now use a comma (,) as a delimiter. The previous default was a pipe character (|). The delimiter is not configurable anymore. If needed, the comma can be escaped with a backslash.
  • The min and max attributes in property definitions in the XML are now optional and can appear separately or be omitted.

New Programmatic API for CPD

This release introduces a new programmatic API to replace the old class CPD. The new API uses a similar model to PmdAnalysis and is called CpdAnalysis. Programmatic execution of CPD should now be done with a CPDConfiguration and a CpdAnalysis, for instance:

CPDConfiguration config = new CPDConfiguration();
config.setMinimumTileSize(100);
config.setOnlyRecognizeLanguage(config.getLanguageRegistry().getLanguageById("java"));
config.setSourceEncoding(StandardCharsets.UTF_8);
config.addInputPath(Path.of("src/main/java")

config.setIgnoreAnnotations(true);
config.setIgnoreLiterals(false);

config.setRendererName("text");

try (CpdAnalysis cpd = CpdAnalysis.create(config)) {
   // note: don't use `config` once a CpdAnalysis has been created.
   // optional: add more files
   cpd.files().addFile(Paths.get("src", "main", "more-java", "ExtraSource.java"));

   cpd.performAnalysis();
}

CPD can of course still be called via command line or using the module pmd-cli. But for tight integration this new programmatic API is recommended.

See PR #4397 for details.

API changes

7.0.0

These are the changes between 7.0.0-rc4 and final 7.0.0.

pmd-java

New API

The API around TreeRenderer has been declared as stable. It was previously experimental. It can be used via the CLI subcommand ast-dump or programmatically, as described on Creating XML dump of the AST.

General AST Changes to avoid @Image

See General AST Changes to avoid @Image in the migration guide for details.

XPath Rules

  • The property version was already deprecated and has finally been removed. Please don't define the version property anymore in your custom XPath rules. By default, the latest XPath version will be used, which is XPath 3.1.

Moved classes/consolidated packages

Internalized classes and interfaces and methods

The following classes/methods have been marked as @InternalApi before and are now moved into a internal package or made (package) private and are not accessible anymore.

  • pmd-core
  • pmd-doc
    • The whole maven module pmd-doc is now considered internal API even though it was not declared so before. It's used to generate the rule documentation for the built-in rules.
    • All the classes have been moved into package net.sourceforge.pmd.doc.internal.
  • pmd-ant
    • net.sourceforge.pmd.ant.Formatter
      • Method getRenderer() has been removed.
      • Method start(String) is private now.
      • Method end(Report) has been removed.
      • Method isNoOutputSupplied() is now package private.
      • Method newListener(Project) is now package private.
    • net.sourceforge.pmd.ant.PMDTask
      • Method getRelativizeRoots() has been removed.
    • net.sourceforge.pmd.ant.ReportException is now package private. Note: It was not marked with @InternalApi before.
  • pmd-apex
    • net.sourceforge.pmd.lang.apex.ast.ApexNode
      • Method getNode() has been removed. It was only deprecated before and not marked with @InternalApi. However, it gave access to the wrapped Jorje node and was thus internal API.
    • net.sourceforge.pmd.lang.apex.ast.AbstractApexNode
      • Method getNode() is now package private.
    • net.sourceforge.pmd.lang.apex.multifile.ApexMultifileAnalysis
      • Constructor is now package private.
    • net.sourceforge.pmd.lang.apex.rule.design.AbstractNcssCountRule (now package private)
    • net.sourceforge.pmd.lang.apex.rule.AbstractApexUnitTestRule (moved to package net.sourceforge.pmd.apex.rule.bestpractices, now package private)
  • pmd-java
  • pmd-jsp
  • pmd-modelica
    • net.sourceforge.pmd.lang.modelica.ast.InternalApiBridge renamed from InternalModelicaNodeApi.
    • net.sourceforge.pmd.lang.modelica.resolver.InternalApiBridge renamed from InternalModelicaResolverApi.
    • net.sourceforge.pmd.lang.modelica.resolver.ModelicaSymbolFacade has been removed.
    • net.sourceforge.pmd.lang.modelica.resolver.ResolutionContext (moved to internal)
    • net.sourceforge.pmd.lang.modelica.resolver.ResolutionState (moved to internal). Note: it was not previously marked with @InternalApi.
    • net.sourceforge.pmd.lang.modelica.resolver.Watchdog (moved to internal). Note: it was not previously marked with @InternalApi.
  • pmd-plsql
    • net.sourceforge.pmd.lang.plsql.rule.design.AbstractNcssCountRule is now package private.
  • pmd-scala

Removed classes and members (previously deprecated)

The annotation @DeprecatedUntil700 has been removed.

  • pmd-core
  • pmd-apex
    • ApexNode and ASTApexFile

      • #getApexVersion(): In PMD 6, this method has been deprecated but was defined in the class ApexRootNode. The version returned is always "Version.CURRENT", as the apex compiler integration doesn't use additional information which Apex version actually is used. Therefore, this method can't be used to determine the Apex version of the project that is being analyzed.

        If the current version is needed, then Node.getTextDocument().getLanguageVersion() can be used. This is the version that has been selected via CLI --use-version parameter.

    • ApexNode
      • method jjtAccept() has been removed. Use acceptVisitor instead.
      • method getNode() has been removed. The underlying node is only available in AST nodes, but not in rule implementations.
    • AbstractApexNode - method getNode() is now package private. AST nodes still have access to the underlying Jorje node via the protected property node.
    • net.sourceforge.pmd.lang.apex.ast.ApexParserVisitor Use ApexVisitor or ApexVisitorBase instead.
    • net.sourceforge.pmd.lang.apex.ast.ApexParserVisitorAdapter
    • ASTAssignmentExpression - method getOperator() removed. Use getOp instead.
    • ASTBinaryExpression - method getOperator() removed. Use getOp instead.
    • ASTBooleanExpression - method getOperator() removed. Use getOp instead.
    • ASTPostfixExpression - method getOperator() removed. Use getOp instead.
    • ASTPrefixExpression - method getOperator() removed. Use getOp instead.
    • net.sourceforge.pmd.lang.apex.rule.security.Helper removed. This was actually internal API.
  • pmd-java
    • AbstractPackageNameModuleDirective - method getImage() has been removed. Use getPackageName instead.
    • AbstractTypeDeclaration - method getImage() has been removed. Use getSimpleName() instead.
    • ASTAnnotation - method getAnnotationName() has been removed.
    • ASTClassType
      • constructor ASTClassType(java.lang.String) has been removed.
      • method getImage() has been removed.
      • method isReferenceToClassSameCompilationUnit() has been removed.
    • ASTFieldDeclaration - method getVariableName() has been removed.
    • ASTLiteral - the following methods have been removed:
      • isStringLiteral() - use node instanceof ASTStringLiteral instead.
      • isCharLiteral() - use node instanceof ASTCharLiteral instead.
      • isNullLiteral() - use node instanceof ASTNullLiteral instead.
      • isBooleanLiteral() - use node instanceof ASTBooleanLiteral instead.
      • isNumericLiteral() - use node instanceof ASTNumericLiteral instead.
      • isIntLiteral() - use isIntLiteral instead.
      • isLongLiteral() - use isLongLiteral instead.
      • isFloatLiteral() - use isFloatLiteral instead.
      • isDoubleLiteral() - use isDoubleLiteral instead.
    • ASTMethodDeclaration - methods getImage() and getMethodName() have been removed. Use getName instead.
    • ASTMethodReference - method getImage() has been removed.
    • ASTModuleName - method getImage() has been removed.
    • ASTPrimitiveType - method getImage() has been removed.
    • ASTType
      • getTypeImage() has been removed.
      • getArrayDepth() has been removed. It's only available for arrays: getArrayDepth.
      • isPrimitiveType() - use node instanceof ASTPrimitiveType instead.
      • isArrayType() - use node instanceof ASTArrayType instead.
      • isClassOrInterfaceType() - use node instanceof ASTClassType instead.
    • ASTTypeDeclaration - method getImage() has been removed.
    • ASTUnaryExpression - method isPrefix() has been removed. Use getOperator.isPrefix() instead.
    • ASTVariableId - methods getImage() and getVariableName() have been removed. Use getName instead.
    • JavaComment - method getImage() has been removed. Use getText instead.
    • JavaNode - method jjtAccept() has been removed. Use acceptVisitor instead.
    • net.sourceforge.pmd.lang.java.ast.JavaParserVisitor Use JavaVisitor or JavaVisitorBase instead.
    • net.sourceforge.pmd.lang.java.ast.JavaParserVisitorAdapter
    • ModifierOwner
      • isFinal() - This is still available in various subtypes, where it makes sense, e.g. isFinal.
      • isAbstract() - This is still available in subtypes, e.g. isAbstract.
      • isStrictfp() - Use hasModifiers instead, e.g. hasModifiers(STRICTFP).
      • isSynchronized() - Use hasModifiers instead, e.g. hasModifiers(SYNCHRONIZED).
      • isNative() - Use hasModifiers instead, e.g. hasModifiers(NATIVE).
      • isStatic() - This is still available in subtypes, e.g. isStatic.
      • isVolatile() - Use hasModifiers instead, e.g. hasModifiers(VOLATILE).
      • isTransient() - Use hasModifiers instead, e.g. hasModifiers(TRANSIENT).
      • isPrivate() - Use getVisibility instead, e.g. getVisibility() == Visibility.V_PRIVATE.
      • isPublic() - Use getVisibility instead, e.g. getVisibility() == Visibility.V_PUBLIC.
      • isProtected() - Use getVisibility instead, e.g. getVisibility() == Visibility.V_PROTECTED.
      • isPackagePrivate() - Use getVisibility instead, e.g. getVisibility() == Visibility.V_PACKAGE.
      • isSyntacticallyAbstract() - Use hasExplicitModifiers instead, e.g. hasExplicitModifiers(ABSTRACT).
      • isSyntacticallyPublic() - Use hasExplicitModifiers instead, e.g. hasExplicitModifiers(PUBLIC).
      • isSyntacticallyStatic() - Use hasExplicitModifiers instead, e.g. hasExplicitModifiers(STATIC).
      • isSyntacticallyFinal() - Use hasExplicitModifiers instead, e.g. hasExplicitModifiers(FINAL).
    • TypeNode - method getType() has been removed. Use getTypeMirror instead.
  • pmd-javascript
    • AbstractEcmascriptNode - method getNode() has been removed. AST nodes still have access to the underlying Rhino node via the protected property node.
    • ASTFunctionNode - method getBody(int) removed. Use getBody instead.
    • ASTTryStatement
      • method isCatch() has been removed. Use hasCatch instead.
      • method isFinally() has been removed. Use hasFinally instead.
    • EcmascriptNode
      • method jjtAccept() has been removed. Use acceptVisitor instead.
      • method getNode() has been removed. The underlying node is only available in AST nodes, but not in rule implementations.
    • net.sourceforge.pmd.lang.ecmascript.ast.EcmascriptParserVisitor Use EcmascriptVisitor or EcmascriptVisitorBase instead.
    • net.sourceforge.pmd.lang.ecmascript.ast.EcmascriptParserVisitorAdapter
  • pmd-jsp
    • net.sourceforge.pmd.lang.jsp.ast.JspParserVisitor Use JspVisitor or JspVisitorBase instead.
    • net.sourceforge.pmd.lang.jsp.ast.JspParserVisitorAdapter
    • JspNode - method jjtAccept() has been removed. Use acceptVisitor instead.
  • pmd-modelica
  • pmd-plsql
  • pmd-scala
    • The maven module pmd-scala has been removed. Use pmd-scala_2.13 or pmd-scala_2.12 instead.
    • ScalaNode
      • Method accept() has been removed. Use acceptVisitor instead.
      • Method getNode() has been removed. The underlying node is only available in AST nodes, but not in rule implementations.
    • AbstractScalaNode - method getNode() has been removed. AST nodes still have access to the underlying Scala node via the protected property node.
  • pmd-visualforce
  • pmd-velocity (previously pmd-vm)
    • VtlNode - method jjtAccept() has been removed. Use acceptVisitor instead.
    • net.sourceforge.pmd.lang.vm.ast.VmParserVisitor Use VtlVisitor or VtlVisitorBase instead.
    • net.sourceforge.pmd.lang.vm.ast.VmParserVisitorAdapter

Removed classes, interfaces and methods (not previously deprecated)

  • pmd-apex
    • The method isSynthetic() in ASTMethod has been removed. With the switch from Jorje to Summit AST as underlying parser, no synthetic methods are generated by the parser anymore. This also means, that there is no XPath attribute @Synthetic anymore.
    • The constant STATIC_INITIALIZER_METHOD_NAME in FieldDeclarationsShouldBeAtStartRule has been removed. It was used to filter out synthetic methods, but these are not generated anymore with the new parser.
    • The method getContext() in ASTReferenceExpression has been removed. It was not used and always returned null.
    • The method getNamespace() in all AST nodes (defined in ApexNode) has been removed, as it was never fully implemented. It always returned an empty string.
    • The method getNameSpace() in ApexQualifiedName has been removed.
    • The class net.sourceforge.pmd.lang.apex.ast.ASTBridgeMethodCreator has been removed. This was a node that has been generated by the old Jorje parser only.
  • pmd-apex-jorje
    • With the switch from Jorje to Summit AST, this maven module is no longer needed and has been removed.
  • pmd-core
    • net.sourceforge.pmd.util.Predicate has been removed. It was marked as Experimental before. Use java.util.function.Predicate instead.
  • pmd-java
    • The interface FinalizableNode (introduced in 7.0.0-rc1) has been removed. Its method isFinal() has been moved down to the nodes where needed, e.g. ASTLocalVariableDeclaration#isFinal.
    • The method isPackagePrivate() in ASTClassDeclaration (formerly ASTClassOrInterfaceDeclaration) has been removed. Use hasVisibility instead, which can correctly differentiate between local and package private classes.

Renamed classes, interfaces, methods

  • pmd-core

  • pmd-java

    • The interface AccessNode has been renamed to ModifierOwner. This is only relevant for Java rules, which use that type directly e.g. through downcasting. Or when using the XPath function pmd-java:nodeIs().
    • The node ASTClassOrInterfaceType has been renamed to ASTClassType. XPath rules need to be adjusted.
    • The node ASTClassOrInterfaceDeclaration has been renamed to ASTClassDeclaration. XPath rules need to be adjusted.
    • The interface ASTAnyTypeDeclaration has been renamed to ASTTypeDeclaration. This is only relevant for Java rules, which use that type directly, e.g. through downcasting. Or when using the XPath function pmd-java:nodeIs().
    • The interface ASTMethodOrConstructorDeclaration has been renamed to ASTExecutableDeclaration. This is only relevant for Java rules, which use that type directly, e.g. through downcasting. Or when using the XPath function pmd-java:nodeIs().
    • The node ASTVariableDeclaratorId has been renamed to ASTVariableId. XPath rules need to be adjusted.
    • The node ASTClassOrInterfaceBody has been renamed to ASTClassBody. XPath rules need to be adjusted.

  • pmd-scala

    • The interface ScalaParserVisitor has been renamed to ScalaVisitor in order to align the naming scheme for the different language modules.
    • The class ScalaParserVisitorAdapter has been renamed to ScalaVisitorBase in order to align the naming scheme for the different language modules.

New API

These were annotated with @Experimental, but can now be considered stable.

Removed functionality

  • The CLI parameter --no-ruleset-compatibility has been removed. It was only used to allow loading some rulesets originally written for PMD 5 also in PMD 6 without fixing the rulesets.
  • The class RuleSetFactoryCompatibility has been removed without replacement. The different ways to enable/disable this filter in PMDConfiguration (Property "RuleSetFactoryCompatibilityEnabled") and PMDTask (Property "noRuleSetCompatibility") have been removed as well.
  • textcolor renderer (TextColorRenderer) now renders always in color. The property color has been removed. The possibility to override this with the system property pmd.color has been removed as well. If you don't want colors, use text renderer (TextRenderer).

7.0.0-rc4

pmd-java

  • Support for Java 19 preview language features have been removed. The version "19-preview" is no longer available.

Rule properties

  • The old deprecated classes like IntProperty and StringProperty have been removed. Please use PropertyFactory to create properties.
  • All properties which accept multiple values now use a comma (,) as a delimiter. The previous default was a pipe character (|). The delimiter is not configurable anymore. If needed, the comma can be escaped with a backslash.
  • The min and max attributes in property definitions in the XML are now optional and can appear separately or be omitted.

New Programmatic API for CPD

See Detailed Release Notes for PMD 7 and PR #4397 for details.

Removed classes and methods

The following previously deprecated classes have been removed:

  • pmd-core
    • net.sourceforge.pmd.cpd.AbstractTokenizer ➡️ use AnyCpdLexer instead (previously known as AnyTokenizer)
    • net.sourceforge.pmd.cpd.CPD ➡️ use PmdCli from pmd-cli module for CLI support or use CpdAnalysis for programmatic API
    • net.sourceforge.pmd.cpd.GridBagHelper (now package private)
    • net.sourceforge.pmd.cpd.TokenEntry.State
    • net.sourceforge.pmd.lang.document.CpdCompat
    • net.sourceforge.pmd.properties.BooleanMultiProperty
    • net.sourceforge.pmd.properties.BooleanProperty
    • net.sourceforge.pmd.properties.CharacterMultiProperty
    • net.sourceforge.pmd.properties.CharacterProperty
    • net.sourceforge.pmd.properties.DoubleMultiProperty
    • net.sourceforge.pmd.properties.DoubleProperty
    • net.sourceforge.pmd.properties.EnumeratedMultiProperty
    • net.sourceforge.pmd.properties.EnumeratedProperty
    • net.sourceforge.pmd.properties.EnumeratedPropertyDescriptor
    • net.sourceforge.pmd.properties.FileProperty (note: without replacement)
    • net.sourceforge.pmd.properties.FloatMultiProperty
    • net.sourceforge.pmd.properties.FloatProperty
    • net.sourceforge.pmd.properties.IntegerMultiProperty
    • net.sourceforge.pmd.properties.IntegerProperty
    • net.sourceforge.pmd.properties.LongMultiProperty
    • net.sourceforge.pmd.properties.LongProperty
    • net.sourceforge.pmd.properties.MultiValuePropertyDescriptor
    • net.sourceforge.pmd.properties.NumericPropertyDescriptor
    • net.sourceforge.pmd.properties.PropertyDescriptorField
    • net.sourceforge.pmd.properties.RegexProperty
    • net.sourceforge.pmd.properties.SingleValuePropertyDescriptor
    • net.sourceforge.pmd.properties.StringMultiProperty
    • net.sourceforge.pmd.properties.StringProperty
    • net.sourceforge.pmd.properties.ValueParser
    • net.sourceforge.pmd.properties.ValueParserConstants
    • net.sourceforge.pmd.properties.builders.MultiNumericPropertyBuilder
    • net.sourceforge.pmd.properties.builders.MultiPackagedPropertyBuilder
    • net.sourceforge.pmd.properties.builders.MultiValuePropertyBuilder
    • net.sourceforge.pmd.properties.builders.PropertyDescriptorBuilder
    • net.sourceforge.pmd.properties.builders.PropertyDescriptorBuilderConversionWrapper
    • net.sourceforge.pmd.properties.builders.PropertyDescriptorExternalBuilder
    • net.sourceforge.pmd.properties.builders.SingleNumericPropertyBuilder
    • net.sourceforge.pmd.properties.builders.SinglePackagedPropertyBuilder
    • net.sourceforge.pmd.properties.builders.SingleValuePropertyBuilder
    • net.sourceforge.pmd.properties.modules.EnumeratedPropertyModule
    • net.sourceforge.pmd.properties.modules.NumericPropertyModule

The following previously deprecated methods have been removed:

  • pmd-core
    • net.sourceforge.pmd.properties.PropertyBuilder.GenericCollectionPropertyBuilder#delim(char)
    • net.sourceforge.pmd.properties.PropertySource#setProperty(...)
    • net.sourceforge.pmd.properties.internal.PropertyTypeId#factoryFor(...)
    • net.sourceforge.pmd.properties.internal.PropertyTypeId#typeIdFor(...)
    • net.sourceforge.pmd.properties.PropertyDescriptor: removed methods errorFor, type, isMultiValue, uiOrder, compareTo, isDefinedExternally, valueFrom, asDelimitedString

The following methods have been removed:

  • pmd-core
    • CPDConfiguration
      • #sourceCodeFor(File), #postConstruct(), #tokenizer(), #filenameFilter() removed
    • Mark
      • #getSourceSlice(), #setLineCount(int), #getLineCount(), #setSourceCode(SourceCode) removed
      • #getBeginColumn(), #getBeginLine(), #getEndLine(), #getEndColumn() removed ➡️ use getLocation instead
    • Match
      • #LABEL_COMPARATOR removed
      • #setMarkSet(...), #setLabel(...), #getLabel(), #addTokenEntry(...) removed
      • #getSourceCodeSlice() removed ➡️ use CPDReport#getSourceCodeSlice instead
    • TokenEntry
      • #getEOF(), #clearImages(), #getIdentifier(), #getIndex(), #setHashCode(int) removed
      • #EOF removed ➡️ use isEof instead
    • Parser.ParserTask
      • #getFileDisplayName() removed ➡️ use getFileId instead (getFileId().getAbsolutePath())

The following classes have been removed:

  • pmd-core
    • net.sourceforge.pmd.cpd.AbstractLanguage
    • net.sourceforge.pmd.cpd.AnyLanguage
    • net.sourceforge.pmd.cpd.Language
    • net.sourceforge.pmd.cpd.LanguageFactory
    • net.sourceforge.pmd.cpd.MatchAlgorithm (now package private)
    • net.sourceforge.pmd.cpd.MatchCollector (now package private)
    • net.sourceforge.pmd.cpd.SourceCode (and all inner classes like FileCodeLoader, ...)
    • net.sourceforge.pmd.cpd.token.TokenFilter

Moved packages

  • pmd-core
    • NumericConstraints (old package: net.sourceforge.pmd.properties.constraints.NumericConstraints)
    • PropertyConstraint (old package: net.sourceforge.pmd.properties.constraints.PropertyConstraint)
      • not experimental anymore
    • ReportException (old package: net.sourceforge.pmd.cpd, moved to module pmd-ant)
      • it is now a RuntimeException
    • CPDReportRenderer (old package: net.sourceforge.pmd.cpd.renderer)
    • AntlrTokenFilter (old package: net.sourceforge.pmd.cpd.token)
    • BaseTokenFilter (old package: net.sourceforge.pmd.cpd.token.internal)
    • JavaCCTokenFilter (old package: net.sourceforge.pmd.cpd.token)

Changed types and other changes

Internal APIs

  • net.sourceforge.pmd.properties.internal.PropertyTypeId

Deprecated API

Experimental APIs

7.0.0-rc3

PMD Distribution

  • The asset filenames of PMD on GitHub Releases are now pmd-dist-<version>-bin.zip, pmd-dist-<version>-src.zip and pmd-dist-<version>-doc.zip. Keep that in mind, if you have an automated download script.

    The structure inside the ZIP files stay the same, e.g. we still provide inside the binary distribution ZIP file the base directory pmd-bin-<version>.

CLI

  • The CLI option --stress (or -stress) has been removed without replacement.
  • The CLI option --minimum-priority was changed with 7.0.0-rc1 to only take the following values: High, Medium High, Medium, Medium Low, Low. With 7.0.0-rc2 compatibility has been restored, so that the equivalent integer values (1 to 5) are supported as well.

pmd-core

7.0.0-rc2

Removed classes and methods

The following previously deprecated classes have been removed:

  • pmd-core
    • net.sourceforge.pmd.PMD
    • net.sourceforge.pmd.cli.PMDCommandLineInterface
    • net.sourceforge.pmd.cli.PMDParameters
    • net.sourceforge.pmd.cli.PmdParametersParseResult

CLI

  • The CLI option --minimum-priority was changed with 7.0.0-rc1 to only take the following values: High, Medium High, Medium, Medium Low, Low. With 7.0.0-rc2 compatibility has been restored, so that the equivalent integer values (1 to 5) are supported as well.

7.0.0-rc1

CLI

  • The CLI option --stress (or -stress) has been removed without replacement.
  • The CLI option --minimum-priority now takes one of the following values instead of an integer: High, Medium High, Medium, Medium Low, Low.

6.55.0

Go

  • The LanguageModule of Go, that only supports CPD execution, has been deprecated. This language is not fully supported by PMD, so having a language module does not make sense. The functionality of CPD is not affected by this change. The following class has been deprecated and will be removed with PMD 7.0.0:

Java

  • Support for Java 18 preview language features have been removed. The version "18-preview" is no longer available.
  • The experimental class net.sourceforge.pmd.lang.java.ast.ASTGuardedPattern has been removed.

6.54.0

PMD CLI

  • PMD now supports a new --relativize-paths-with flag (or short -z), which replaces --short-names. It serves the same purpose: Shortening the pathnames in the reports. However, with the new flag it's possible to explicitly define one or more pathnames that should be used as the base when creating relative paths. The old flag --short-names is deprecated.

Deprecated APIs

For removal

Internal APIs

Experimental APIs

  • CPDReport has a new method which limited mutation of a given report:
    • filterMatches creates a new CPD report with some matches removed with a given predicate based filter.

6.53.0

Deprecated APIs

For removal

These classes / APIs have been deprecated and will be removed with PMD 7.0.0.

6.52.0

PMD CLI

  • PMD now supports a new --use-version flag, which receives a language-version pair (such as java-8 or apex-54). This supersedes the usage of -language / -l and -version / -v, allowing for multiple versions to be set in a single run. PMD 7 will completely remove support for -language and -version in favor of this new flag.

  • Support for -V is being deprecated in favor of --verbose in preparation for PMD 7. In PMD 7, -v will enable verbose mode and -V will show the PMD version for consistency with most Unix/Linux tools.

  • Support for -min is being deprecated in favor of --minimum-priority for consistency with most Unix/Linux tools, where -min would be equivalent to -m -i -n.

CPD CLI

  • CPD now supports using -d or --dir as an alias to --files, in favor of consistency with PMD. PMD 7 will remove support for --files in favor of these new flags.

Linux run.sh parameters

  • Using run.sh cpdgui will now warn about it being deprecated. Use run.sh cpd-gui instead.

  • The old designer (run.sh designerold) is completely deprecated and will be removed in PMD 7. Switch to the new JavaFX designer: run.sh designer.

  • The old visual AST viewer (run.sh bgastviewer) is completely deprecated and will be removed in PMD 7. Switch to the new JavaFX designer: run.sh designer for a visual tool, or use run.sh ast-dump for a text-based alternative.

Deprecated API

6.51.0

No changes.

6.50.0

CPD CLI

  • CPD now supports the --ignore-literal-sequences argument when analyzing Lua code.

6.49.0

Deprecated API

6.48.0

CPD CLI

  • CPD has a new CLI option --debug. This option has the same behavior as in PMD. It enables more verbose logging output.

Rule Test Framework

  • The module "pmd-test", which contains support classes to write rule tests, now requires Java 8. If you depend on this module for testing your own custom rules, you'll need to make sure to use at least Java 8.
  • The new module "pmd-test-schema" contains now the XSD schema and the code to parse the rule test XML files. The schema has been extracted in order to easily share it with other tools like the Rule Designer or IDE plugins.
  • Test schema changes:
    • The attribute isRegressionTest of test-code is deprecated. The new attribute disabled should be used instead for defining whether a rule test should be skipped or not.
    • The attributes reinitializeRule and useAuxClasspath of test-code are deprecated and assumed true. They will not be replaced.
    • The new attribute focused of test-code allows disabling all tests except the focused one temporarily.
  • More information about the rule test framework can be found in the documentation: Testing your rules

Deprecated API

  • The experimental Java AST class net.sourceforge.pmd.lang.java.ast.ASTGuardedPattern has been deprecated and will be removed. It was introduced for Java 17 and Java 18 Preview as part of pattern matching for switch, but it is no longer supported with Java 19 Preview.
  • The interface CPDRenderer is deprecated. For custom CPD renderers the new interface CPDReportRenderer should be used.
  • The class TestDescriptor is deprecated, replaced with RuleTestDescriptor.
  • Many methods of RuleTst have been deprecated as internal API.

Experimental APIs

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

6.47.0

No changes.

6.46.0

Deprecated ruleset references

Ruleset references with the following formats are now deprecated and will produce a warning when used on the CLI or in a ruleset XML file:

  • <lang-name>-<ruleset-name>, eg java-basic, which resolves to rulesets/java/basic.xml
  • the internal release number, eg 600, which resolves to rulesets/releases/600.xml

Use the explicit forms of these references to be compatible with PMD 7.

Deprecated API

  • toString is now deprecated. The format of this method will remain the same until PMD 7. The deprecation is intended to steer users away from relying on this format, as it may be changed in PMD 7.
  • getInputPaths and setInputPaths are now deprecated. A new set of methods have been added, which use lists and do not rely on comma splitting.

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

6.45.0

Experimental APIs

  • Report has two new methods which allow limited mutations of a given report:
    • Report#filterViolations creates a new report with some violations removed with a given predicate based filter.
    • Report#union can combine two reports into a single new Report.
  • net.sourceforge.pmd.util.Predicate will be replaced in PMD7 with the standard Predicate interface from java8.
  • The module pmd-html is entirely experimental right now. Anything in the package net.sourceforge.pmd.lang.html should be used cautiously.

6.44.0

Deprecated API

Experimental APIs

  • Together with the new programmatic API the interface TextFile has been added as experimental. It intends to replace DataSource and SourceCode in the long term.

    This interface will change in PMD 7 to support read/write operations and other things. You don't need to use it in PMD 6, as FileCollector decouples you from this. A file collector is available through PmdAnalysis#files.

6.43.0

Deprecated API

Some API deprecations were performed in core PMD classes, to improve compatibility with PMD 7.

  • Report: the constructor and other construction methods like addViolation or createReport
  • RuleContext: all constructors, getters and setters. A new set of stable methods, matching those in PMD 7, was added to replace the addViolation overloads of AbstractRule. In PMD 7, RuleContext will be the API to report violations, and it can already be used as such in PMD 6.
  • The field configuration is unused and will be removed.

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

Changed API

It is now forbidden to report a violation:

  • With a null node
  • With a null message
  • With a null set of format arguments (prefer a zero-length array)

Note that the message is set from the XML rule declaration, so this is only relevant if you instantiate rules manually.

RuleContext now requires setting the current rule before calling apply. This is done automatically by RuleSet#apply and such. Creating and configuring a RuleContext manually is strongly advised against, as the lifecycle of RuleContext will change drastically in PMD 7.

6.42.0

No changes.

6.41.0

Command Line Interface

The command line options for PMD and CPD now use GNU-syle long options format. E.g. instead of -rulesets the preferred usage is now --rulesets. Alternatively one can still use the short option -R. Some options also have been renamed to a more consistent casing pattern at the same time (--fail-on-violation instead of -failOnViolation). The old single-dash options are still supported but are deprecated and will be removed with PMD 7. This change makes the command line interface more consistent within PMD and also less surprising compared to other cli tools.

The changes in detail for PMD:

old option new option
-rulesets --rulesets (or -R)
-uri --uri
-dir --dir (or -d)
-filelist --file-list
-ignorelist --ignore-list
-format --format (or -f)
-debug --debug
-verbose --verbose
-help --help
-encoding --encoding
-threads --threads
-benchmark --benchmark
-stress --stress
-shortnames --short-names
-showsuppressed --show-suppressed
-suppressmarker --suppress-marker
-minimumpriority --minimum-priority
-property --property
-reportfile --report-file
-force-language --force-language
-auxclasspath --aux-classpath
-failOnViolation --fail-on-violation
--failOnViolation --fail-on-violation
-norulesetcompatibility --no-ruleset-compatibility
-cache --cache
-no-cache --no-cache

The changes in detail for CPD:

old option new option
--failOnViolation --fail-on-violation
-failOnViolation --fail-on-violation
--filelist --file-list

6.40.0

Experimental APIs

  • The interface ASTCommentContainer has been added to the Apex AST. It provides a way to check whether a node contains at least one comment. Currently, this is only implemented for ASTCatchBlockStatement and used by the rule EmptyCatchBlock. This information is also available via XPath attribute @ContainsComment.

6.39.0

No changes.

6.38.0

No changes.

6.37.0

PMD CLI

  • PMD has a new CLI option -force-language. With that a language can be forced to be used for all input files, irrespective of filenames. When using this option, the automatic language selection by extension is disabled and all files are tried to be parsed with the given language. Parsing errors are ignored and unparsable files are skipped.

    This option allows to use the xml language for files, that don't use xml as extension. See also the examples on PMD CLI reference.

Experimental APIs

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

6.36.0

No changes.

6.35.0

Deprecated API

6.34.0

No changes.

6.33.0

No changes.

6.32.0

Experimental APIs

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

  • The protected or public member of the Java rule AvoidUsingHardCodedIPRule are deprecated and considered to be internal API. They will be removed with PMD 7.

6.31.0

Deprecated API

Experimental APIs

  • The method GenericToken#getKind has been added as experimental. This unifies the token interface for both JavaCC and Antlr. The already existing method AntlrToken#getKind is therefore experimental as well. The returned constant depends on the actual language and might change whenever the grammar of the language is changed.

6.30.0

Deprecated API

Around RuleSet parsing

Around the PMD class

Many classes around PMD's entry point (PMD) have been deprecated as internal, including:

Miscellaneous

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

6.29.0

No changes.

6.28.0

Deprecated API

For removal

6.27.0

  • XML rule definition in rulesets: In PMD 7, the language attribute will be required on all rule elements that declare a new rule. Some base rule classes set the language implicitly in their constructor, and so this is not required in all cases for the rule to work. But this behavior will be discontinued in PMD 7, so missing language attributes are now reported as a forward compatibility warning.

Deprecated API

For removal

6.26.0

Deprecated API

For removal

6.25.0

  • The maven module net.sourceforge.pmd:pmd-scala is deprecated. Use net.sourceforge.pmd:pmd-scala_2.13 or net.sourceforge.pmd:pmd-scala_2.12 instead.

  • Rule implementation classes are internal API and should not be used by clients directly. The rules should only be referenced via their entry in the corresponding category ruleset (e.g. <rule ref="category/java/bestpractices.xml/AbstractClassWithoutAbstractMethod" />).

    While we definitely won't move or rename the rule classes in PMD 6.x, we might consider changes in PMD 7.0.0 and onwards.

Deprecated APIs

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

For removal

6.24.0

Deprecated APIs

Experimental APIs

Note: Experimental APIs are identified with the annotation Experimental, see its javadoc for details

6.23.0

Deprecated APIs

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

In ASTs

As part of the changes we'd like to do to AST classes for 7.0.0, we would like to hide some methods and constructors that rule writers should not have access to. The following usages are now deprecated in the Apex, Javascript, PL/SQL, Scala and Visualforce ASTs:

  • Manual instantiation of nodes. Constructors of node classes are deprecated and marked InternalApi. Nodes should only be obtained from the parser, which for rules, means that they never need to instantiate node themselves. Those constructors will be made package private with 7.0.0.
  • Subclassing of abstract node classes, or usage of their type. The base classes are internal API and will be hidden in version 7.0.0. You should not couple your code to them.
  • In the meantime you should use interfaces like VfNode or Node, or the other published interfaces in this package, to refer to nodes generically.
  • Concrete node classes will be made final with 7.0.0.
  • Setters found in any node class or interface. Rules should consider the AST immutable. We will make those setters package private with 7.0.0.
  • The implementation classes of Parser (eg VfParser) are deprecated and should not be used directly. Use LanguageVersionHandler#getParser instead.
  • The implementation classes of TokenManager (eg VfTokenManager) are deprecated and should not be used outside of our implementation. This also affects CPD-only modules.

These deprecations are added to the following language modules in this release. Please look at the package documentation to find out the full list of deprecations.

These deprecations have already been rolled out in a previous version for the following languages:

Outside of these packages, these changes also concern the following TokenManager implementations, and their corresponding Parser if it exists (in the same package):

In the Java AST the following attributes are deprecated and will issue a warning when used in XPath rules:

For removal

6.22.0

Deprecated APIs

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

For removal

In ASTs (JSP)

As part of the changes we'd like to do to AST classes for 7.0.0, we would like to hide some methods and constructors that rule writers should not have access to. The following usages are now deprecated in the JSP AST (with other languages to come):

  • Manual instantiation of nodes. Constructors of node classes are deprecated and marked InternalApi. Nodes should only be obtained from the parser, which for rules, means that they never need to instantiate node themselves. Those constructors will be made package private with 7.0.0.
  • Subclassing of abstract node classes, or usage of their type. The base classes are internal API and will be hidden in version 7.0.0. You should not couple your code to them.
  • In the meantime you should use interfaces like JspNode or Node, or the other published interfaces in this package, to refer to nodes generically.
  • Concrete node classes will be made final with 7.0.0.
  • Setters found in any node class or interface. Rules should consider the AST immutable. We will make those setters package private with 7.0.0.
  • The class JspParser is deprecated and should not be used directly. Use LanguageVersionHandler#getParser instead.

Please look at net.sourceforge.pmd.lang.jsp.ast to find out the full list of deprecations.

In ASTs (Velocity)

As part of the changes we'd like to do to AST classes for 7.0.0, we would like to hide some methods and constructors that rule writers should not have access to. The following usages are now deprecated in the VM AST (with other languages to come):

  • Manual instantiation of nodes. Constructors of node classes are deprecated and marked InternalApi. Nodes should only be obtained from the parser, which for rules, means that they never need to instantiate node themselves. Those constructors will be made package private with 7.0.0.
  • Subclassing of abstract node classes, or usage of their type. The base classes are internal API and will be hidden in version 7.0.0. You should not couple your code to them.
  • In the meantime you should use interfaces like VtlNode or Node, or the other published interfaces in this package, to refer to nodes generically.
  • Concrete node classes will be made final with 7.0.0.
  • Setters found in any node class or interface. Rules should consider the AST immutable. We will make those setters package private with 7.0.0.
  • The package net.sourceforge.pmd.lang.vm.directive as well as the classes DirectiveMapper and LogUtil are deprecated for removal. They were only used internally during parsing.
  • The class VmParser is deprecated and should not be used directly. Use LanguageVersionHandler#getParser instead.

Please look at net.sourceforge.pmd.lang.vm.ast to find out the full list of deprecations.

PLSQL AST

The production and node ASTCursorBody was unnecessary, not used and has been removed. Cursors have been already parsed as ASTCursorSpecification.

6.21.0

Deprecated APIs

Internal API

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

For removal

6.20.0

No changes.

6.19.0

Deprecated APIs

For removal

Internal APIs

6.18.0

Changes to Renderer

  • Each renderer has now a new method Renderer#setUseShortNames which is used for implementing the "shortnames" CLI option. The method is automatically called by PMD, if this CLI option is in use. When rendering filenames to the report, the new helper method AbstractRenderer#determineFileName should be used. This will change the filename to a short name, if the CLI option "shortnames" is used.

    Not adjusting custom renderers will make them render always the full file names and not honoring the CLI option "shortnames".

Deprecated APIs

For removal

Internal APIs

Those APIs are not intended to be used by clients, and will be hidden or removed with PMD 7.0.0. You can identify them with the @InternalApi annotation. You'll also get a deprecation warning.

6.17.0

No changes.

6.16.0

Deprecated APIs

Reminder: Please don't use members marked with the annotation InternalApi, as they will likely be removed, hidden, or otherwise intentionally broken with 7.0.0.

In ASTs

As part of the changes we'd like to do to AST classes for 7.0.0, we would like to hide some methods and constructors that rule writers should not have access to. The following usages are now deprecated in the Java AST (with other languages to come):

  • Manual instantiation of nodes. Constructors of node classes are deprecated and marked InternalApi. Nodes should only be obtained from the parser, which for rules, means that never need to instantiate node themselves. Those constructors will be made package private with 7.0.0.
  • Subclassing of abstract node classes, or usage of their type. Version 7.0.0 will bring a new set of abstractions that will be public API, but the base classes are and will stay internal. You should not couple your code to them.
    • In the meantime you should use interfaces like JavaNode or Node, or the other published interfaces in this package, to refer to nodes generically.
    • Concrete node classes will be made final with 7.0.0.
  • Setters found in any node class or interface. Rules should consider the AST immutable. We will make those setters package private with 7.0.0.

Please look at net.sourceforge.pmd.lang.java.ast to find out the full list of deprecations.

6.15.0

Deprecated APIs

For removal

6.14.0

No changes.

6.13.0

Command Line Interface

The start scripts run.sh, pmd.bat and cpd.bat support the new environment variable PMD_JAVA_OPTS. This can be used to set arbitrary JVM options for running PMD, such as memory settings (e.g. PMD_JAVA_OPTS=-Xmx512m) or enable preview language features (e.g. PMD_JAVA_OPTS=--enable-preview).

The previously available variables such as OPTS or HEAPSIZE are deprecated and will be removed with PMD 7.0.0.

Deprecated API

  • CodeClimateRule is deprecated in 7.0.0 because it was unused for 2 years and created an unwanted dependency. Properties "cc_categories", "cc_remediation_points_multiplier", "cc_block_highlighting" will also be removed. See #1702 for more.

  • The Apex ruleset rulesets/apex/ruleset.xml has been deprecated and will be removed in 7.0.0. Please use the new quickstart ruleset rulesets/apex/quickstart.xml instead.

6.12.0

No changes.

6.11.0

6.10.0

Properties framework

The properties framework is about to get a lifting, and for that reason, we need to deprecate a lot of APIs to remove them in 7.0.0. The proposed changes to the API are described on the wiki

Changes to how you define properties

Here's an example:

// Before 7.0.0, these are equivalent:
IntegerProperty myProperty = new IntegerProperty("score", "Top score value", 1, 100, 40, 3.0f);
IntegerProperty myProperty = IntegerProperty.named("score").desc("Top score value").range(1, 100).defaultValue(40).uiOrder(3.0f);

// They both map to the following in 7.0.0
PropertyDescriptor<Integer> myProperty = PropertyFactory.intProperty("score").desc("Top score value").require(inRange(1, 100)).defaultValue(40);

You're highly encouraged to migrate to using this new API as soon as possible, to ease your migration to 7.0.0.

Architectural simplifications

Changes to the PropertyDescriptor interface

  • preferredRowCount is deprecated with no intended replacement. It was never implemented, and does not belong in this interface. The methods uiOrder and compareTo(PropertyDescriptor) are deprecated for the same reason. These methods mix presentation logic with business logic and are not necessary for PropertyDescriptors to work. PropertyDescriptor will not extend Comparable<PropertyDescriptor> anymore come 7.0.0.
  • The method propertyErrorFor is deprecated and will be removed with no intended replacement. It's really just a shortcut for prop.errorFor(rule.getProperty(prop)).
  • T valueFrom(String) and String asDelimitedString(T) are deprecated and will be removed. These were used to serialize and deserialize properties to/from a string, but 7.0.0 will introduce a more flexible XML syntax which will make them obsolete.
  • isMultiValue and type are deprecated and won't be replaced. The new XML syntax will remove the need for a divide between multi- and single-value properties, and will allow arbitrary types to be represented. Since arbitrary types may be represented, type will become obsolete as it can't represent generic types, which will nevertheless be representable with the XML syntax. It was only used for documentation, but a new way to document these properties exhaustively will be added with 7.0.0.
  • errorFor is deprecated as its return type will be changed to Optional<String> with the shift to Java 8.

Deprecated APIs

For internalization

For removal

6.9.0

No changes.

6.8.0

  • A couple of methods and fields in net.sourceforge.pmd.properties.AbstractPropertySource have been deprecated, as they are replaced by already existing functionality or expose internal implementation details: propertyDescriptors, propertyValuesByDescriptor, copyPropertyDescriptors(), copyPropertyValues(), ignoredProperties(), usesDefaultValues(), useDefaultValueFor().

  • Some methods in net.sourceforge.pmd.properties.PropertySource have been deprecated as well: usesDefaultValues(), useDefaultValueFor(), ignoredProperties().

  • The class net.sourceforge.pmd.lang.rule.AbstractDelegateRule has been deprecated and will be removed with PMD 7.0.0. It is internally only in use by RuleReference.

  • The default constructor of net.sourceforge.pmd.lang.rule.RuleReference has been deprecated and will be removed with PMD 7.0.0. RuleReferences should only be created by providing a Rule and a RuleSetReference. Furthermore, the following methods are deprecated: setRuleReference(), hasOverriddenProperty(), usesDefaultValues(), useDefaultValueFor().

6.7.0

  • All classes in the package net.sourceforge.pmd.lang.dfa.report have been deprecated and will be removed with PMD 7.0.0. This includes the class net.sourceforge.pmd.lang.dfa.report.ReportTree. The reason is, that this class is very specific to Java and not suitable for other languages. It has only been used for YAHTMLRenderer, which has been rewritten to work without these classes.

  • The nodes RUNSIGNEDSHIFT and RSIGNEDSHIFT are deprecated and will be removed from the AST with PMD 7.0.0. These represented the operator of ShiftExpression in two cases out of three, but they're not needed and make ShiftExpression inconsistent. The operator of a ShiftExpression is now accessible through ShiftExpression#getOperator.

6.5.0

  • The utility class CommentUtil has been deprecated and will be removed with PMD 7.0.0. Its methods have been intended to parse javadoc tags. A more useful solution will be added around the AST node FormalComment, which contains as children JavadocElement nodes, which in turn provide access to the JavadocTag.

    All comment AST nodes (FormalComment, MultiLineComment, SingleLineComment) have a new method getFilteredComment() which provide access to the comment text without the leading /* markers.

  • The method AbstractCommentRule.tagsIndicesIn() has been deprecated and will be removed with PMD 7.0.0. It is not very useful, since it doesn't extract the information in a useful way. You would still need check, which tags have been found, and with which data they might be accompanied.

6.4.0

6.2.0

6.1.0

  • The method getXPathNodeName is added to the Node interface, which removes the use of toString of a node to get its XPath element name (see #569).

    • The default implementation provided in AbstractNode, will be removed with 7.0.0
    • With 7.0.0, the Node.toString method will not necessarily provide its XPath node name anymore.

  • The interface net.sourceforge.pmd.cpd.Renderer has been deprecated. A new interface CPDRenderer has been introduced to replace it. The main difference is that the new interface is meant to render directly to a java.io.Writer rather than to a String. This allows to greatly reduce the memory footprint of CPD, as on large projects, with many duplications, it was causing OutOfMemoryErrors (see #795).

    net.sourceforge.pmd.cpd.FileReporter has also been deprecated as part of this change, as it's no longer needed.

6.0.1

🐛 Fixed Issues

  • miscellaneous
    • #881: [all] Breaking API changes for 7.0.0
    • #896: [all] Use slf4j
    • #1431: [ui] Remove old GUI applications (designerold, bgastviewer)
    • #1451: [core] RulesetFactoryCompatibility stores the whole ruleset file in memory as a string
    • #2496: Update PMD 7 Logo on landing page
    • #2497: PMD 7 Logo page
    • #2498: Update PMD 7 Logo in documentation
    • #3797: [all] Use JUnit5
    • #4462: Provide Software Bill of Materials (SBOM)
    • #4460: Fix assembly-plugin warnings
    • #4582: [dist] Download link broken
    • #4586: Use explicit encoding in ruleset xml files
    • #4642: Update regression tests with Java 21 language features
    • #4691: [CVEs] Critical and High CEVs reported on PMD and PMD dependencies
    • #4699: Make PMD buildable with java 21
    • #4736: [ci] Improve build procedure
    • #4741: Add pmd-compat6 module for maven-pmd-plugin
    • #4749: Fixes NoSuchMethodError on processing errors in pmd-compat6
    • #4776: [ci] Upgrade to ruby 3
    • #4796: Remove deprecated and release rulesets
    • #4823: Update to use renamed pmd-designer
    • #4827: [compat6] Support config errors and cpd for csharp
    • #4830: Consolidate packages in each maven module
    • #4867: [dist] ./mvnw command not found in dist-src
  • ant
    • #4080: [ant] Split off Ant integration into a new submodule
  • core
    • #880: [core] Make visitors generic
    • #1027: [core] Apply the new PropertyDescriptor<Pattern> type where applicable
    • #1204: [core] Allow numeric properties in XML to be within an unbounded range
    • #1622: [core] NodeStream API
    • #1687: [core] Deprecate and Remove XPath 1.0 support
    • #1785: [core] Allow abstract node types to be valid rulechain visits
    • #1825: [core] Support NoAttribute for XPath
    • #2038: [core] Remove DCD
    • #2218: [core] isFindBoundary should not be an attribute
    • #2234: [core] Consolidate PMD CLI into a single command
    • #2239: [core] Merging Javacc build scripts
    • #2500: [core] Clarify API for ANTLR based languages
    • #2518: [core] Language properties
    • #2602: [core] Remove ParserOptions
    • #2614: [core] Upgrade Saxon, add XPath 3.1, remove Jaxen
    • #2696: [core] Remove DFA
    • #2821: [core] Rule processing error filenames are missing paths
    • #2873: [core] Utility classes in pmd 7
    • #2885: [core] Error recovery mode
    • #3203: [core] Replace RuleViolationFactory implementations with ViolationDecorator
    • #3692: [core] Analysis listeners
    • #3782: [core] Language lifecycle
    • #3815: [core] Update Saxon HE to 10.7
    • #3893: [core] Text documents
    • #3902: [core] Violation decorators
    • #3903: [core] Consolidate n.s.pmd.reporting package
    • #3905: [core] Stabilize tree export API
    • #3917: [core] Consolidate n.s.pmd.lang.rule package
    • #3918: [core] Make LanguageRegistry non static
    • #3919: [core] Merge CPD and PMD language
    • #3922: [core] Better error reporting for the ruleset parser
    • #4035: [core] ConcurrentModificationException in DefaultRuleViolationFactory
    • #4065: [core] Rename TokenMgrError to LexException, Tokenizer to CpdLexer
    • #4120: [core] Explicitly name all language versions
    • #4204: [core] Provide a CpdAnalysis class as a programmatic entry point into CPD
    • #4301: [core] Remove deprecated property concrete classes
    • #4302: [core] Migrate Property Framework API to Java 8
    • #4309: [core] Cleanups in XPath area
    • #4312: [core] Remove unnecessary property color and system property pmd.color in TextColorRenderer
    • #4313: [core] Remove support for <lang>-<ruleset> hyphen notation for ruleset references
    • #4314: [core] Remove ruleset compatibility filter (RuleSetFactoryCompatibility) and CLI option --no-ruleset-compatibility
    • #4323: [core] Refactor CPD integration
    • #4348: [core] Consolidate @InternalApi classes
    • #4349: [core] Cleanup remaining experimental and deprecated API
    • #4353: [core] Micro optimizations for Node API
    • #4365: [core] Improve benchmarking
    • #4397: [core] Refactor CPD
    • #4378: [core] Ruleset loading processes commented rules
    • #4420: [core] Remove PMD.EOL
    • #4425: [core] Replace TextFile::pathId
    • #4454: [core] "Unknown option: '-min'" but is referenced in documentation
    • #4611: [core] Fix loading language properties from env vars
    • #4621: [core] Make ClasspathClassLoader::getResource child first
    • #4674: [core] WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass
    • #4694: [core] Fix line/col numbers in TokenMgrError
    • #4717: [core] XSLTRenderer doesn't close report file
    • #4750: [core] Fix flaky SummaryHTMLRenderer
    • #4782: [core] Avoid using getImage/@Image
  • cli
    • #2234: [core] Consolidate PMD CLI into a single command
    • #3828: [core] Progress reporting
    • #4079: [cli] Split off CLI implementation into a pmd-cli submodule
    • #4423: [cli] Fix NPE when only --file-list is specified
    • #4482: [cli] pmd.bat can only be executed once
    • #4484: [cli] ast-dump with no properties produce an NPE
    • #4594: [cli] Change completion generation to runtime
    • #4685: [cli] Clarify CPD documentation, fix positional parameter handling
    • #4723: [cli] Launch fails for "bash pmd"
  • doc
    • #995: [doc] Document API evolution principles as ADR
    • #2501: [doc] Verify ANTLR Documentation
    • #2511: [doc] Review guides for writing java/xpath rules for correctness with PMD 7
    • #3175: [doc] Document language module features
    • #4294: [doc] Migration Guide for upgrading PMD 6 ➡️ 7
    • #4303: [doc] Document new property framework
    • #4308: [doc] Document XPath API @DeprecatedAttribute
    • #4319: [doc] Document TypeRes API and Symbols API
    • #4438: [doc] Documentation links in VS Code are outdated
    • #4521: [doc] Website is not mobile friendly
    • #4676: [doc] Clarify how CPD --ignore-literals and --ignore-identifiers work
    • #4659: [doc] Improve ant documentation
    • #4669: [doc] Add bld PMD Extension to Tools / Integrations
    • #4704: [doc] Multivalued properties do not accept | as a separator
  • testing
    • #2435: [test] Remove duplicated Dummy language module
    • #4234: [test] Tests that change the logging level do not work

Language specific fixes:

  • apex
    • #1937: [apex] Apex should only have a single RootNode
    • #1648: [apex,vf] Remove CodeClimate dependency
    • #1750: [apex] Remove apex statistical rules
    • #2836: [apex] Remove Apex ProjectMirror
    • #3766: [apex] Replace Jorje with fully open source front-end
    • #3973: [apex] Update parser to support new 'as user' keywords (User Mode for Database Operations)
    • #4427: [apex] ApexBadCrypto test failing to detect inline code
    • #4453: [apex] [7.0-rc1] Exception while initializing Apexlink (Index 34812 out of bounds for length 34812)
    • #4828: [apex] Support null coalescing operator ?? (apex 60)
    • #4845: [apex] Use same ANLTR version for apex-parser
  • apex-design
    • #2667: [apex] Integrate nawforce/ApexLink to build robust Unused rule
    • #4509: [apex] ExcessivePublicCount doesn't consider inner classes correctly
    • #4596: [apex] ExcessivePublicCount ignores properties
  • apex-documentation
    • #4774: [apex] ApexDoc false-positive for the first method of an annotated Apex class
  • apex-performance
    • #4675: [apex] New Rule: OperationWithHighCostInLoop
  • apex-security
    • #4646: [apex] ApexSOQLInjection does not recognise SObjectType or SObjectField as safe variable types
  • groovy
    • #4726: [groovy] Support Groovy to 3 and 4 and CPD suppressions
  • java
    • #520: [java] Allow @SuppressWarnings with constants instead of literals
    • #864: [java] Similar/duplicated implementations for determining FQCN
    • #905: [java] Add new node for anonymous class declaration
    • #910: [java] AST inconsistency between primitive and reference type arrays
    • #997: [java] Java8 parsing corner case with annotated array types
    • #998: [java] AST inconsistencies around FormalParameter
    • #1019: [java] Breaking Java Grammar changes for PMD 7.0.0
    • #1124: [java] ImmutableList implementation in the qname codebase
    • #1128: [java] Improve ASTLocalVariableDeclaration
    • #1150: [java] ClassOrInterfaceType AST improvements
    • #1207: [java] Resolve explicit types using FQCNs, without hitting the classloader
    • #1307: [java] AccessNode API changes
    • #1367: [java] Parsing error on annotated inner class
    • #1661: [java] About operator nodes
    • #2366: [java] Remove qualified names
    • #2819: [java] GLB bugs in pmd 7
    • #3642: [java] Parse error on rare extra dimensions on method return type on annotation methods
    • #3763: [java] Ambiguous reference error in valid code
    • #3749: [java] Improve isOverridden in ASTMethodDeclaration
    • #3750: [java] Make symbol table support instanceof pattern bindings
    • #3751: [java] Rename some node types
    • #3752: [java] Expose annotations in symbol API
    • #4237: [java] Cleanup handling of Java comments
    • #4317: [java] Some AST nodes should not be TypeNodes
    • #4359: [java] Type resolution fails with NPE when the scope is not a type declaration
    • #4367: [java] Move testrule TypeResTest into internal
    • #4383: [java] IllegalStateException: Object is not an array type!
    • #4401: [java] PMD 7 fails to build under Java 19
    • #4405: [java] Processing error with ArrayIndexOutOfBoundsException
    • #4583: [java] Support JDK 21 (LTS)
    • #4628: [java] Support loading classes from java runtime images
    • #4753: [java] PMD crashes while using generics and wildcards
    • #4757: [java] Intermittent NPEs while analyzing Java code
    • #4794: [java] Support JDK 22
  • java-bestpractices
    • #342: [java] AccessorMethodGeneration: Name clash with another public field not properly handled
    • #755: [java] AccessorClassGeneration false positive for private constructors
    • #770: [java] UnusedPrivateMethod yields false positive for counter-variant arguments
    • #807: [java] AccessorMethodGeneration false positive with overloads
    • #833: [java] ForLoopCanBeForeach should consider iterating on this
    • #1189: [java] UnusedPrivateMethod false positive from inner class via external class
    • #1205: [java] Improve ConstantsInInterface message to mention alternatives
    • #1212: [java] Don't raise JUnitTestContainsTooManyAsserts on JUnit 5's assertAll
    • #1422: [java] JUnitTestsShouldIncludeAssert false positive with inherited @Rule field
    • #1455: [java] JUnitTestsShouldIncludeAssert: False positives for assert methods named "check" and "verify"
    • #1563: [java] ForLoopCanBeForeach false positive with method call using index variable
    • #1565: [java] JUnitAssertionsShouldIncludeMessage false positive with AssertJ
    • #1747: [java] PreserveStackTrace false-positive
    • #1969: [java] MissingOverride false-positive triggered by package-private method overwritten in another package by extending class
    • #1998: [java] AccessorClassGeneration false-negative: subclass calls private constructor
    • #2130: [java] UnusedLocalVariable: false-negative with array
    • #2147: [java] JUnitTestsShouldIncludeAssert - false positives with lambdas and static methods
    • #2464: [java] LooseCoupling must ignore class literals: ArrayList.class
    • #2542: [java] UseCollectionIsEmpty can not detect the case foo.bar().size()
    • #2650: [java] UseTryWithResources false positive when AutoCloseable helper used
    • #2796: [java] UnusedAssignment false positive with call chains
    • #2797: [java] MissingOverride long-standing issues
    • #2806: [java] SwitchStmtsShouldHaveDefault false-positive with Java 14 switch non-fallthrough branches
    • #2822: [java] LooseCoupling rule: Extend to cover user defined implementations and interfaces
    • #2843: [java] Fix UnusedAssignment FP with field accesses
    • #2882: [java] UseTryWithResources - false negative for explicit close
    • #2883: [java] JUnitAssertionsShouldIncludeMessage false positive with method call
    • #2890: [java] UnusedPrivateMethod false positive with generics
    • #2946: [java] SwitchStmtsShouldHaveDefault false positive on enum inside enums
    • #3672: [java] LooseCoupling - fix false positive with generics
    • #3675: [java] MissingOverride - fix false positive with mixing type vars
    • #3858: [java] UseCollectionIsEmpty should infer local variable type from method invocation
    • #4433: [java] [7.0-rc1] ReplaceHashtableWithMap on java.util.Properties
    • #4492: [java] GuardLogStatement gives false positive when argument is a Java method reference
    • #4503: [java] JUnitTestsShouldIncludeAssert: false negative with TestNG
    • #4516: [java] UnusedLocalVariable: false-negative with try-with-resources
    • #4517: [java] UnusedLocalVariable: false-negative with compound assignments
    • #4518: [java] UnusedLocalVariable: false-positive with multiple for-loop indices
    • #4603: [java] UnusedAssignment false positive in record compact constructor
    • #4625: [java] UnusedPrivateMethod false positive: Autoboxing into Number
    • #4634: [java] JUnit4TestShouldUseTestAnnotation false positive with TestNG
    • #4817: [java] UnusedPrivateMethod false-positive used in lambda
  • java-codestyle
    • #1208: [java] PrematureDeclaration rule false-positive on variable declared to measure time
    • #1429: [java] PrematureDeclaration as result of method call (false positive)
    • #1480: [java] IdenticalCatchBranches false positive with return expressions
    • #1673: [java] UselessParentheses false positive with conditional operator
    • #1790: [java] UnnecessaryFullyQualifiedName false positive with enum constant
    • #1918: [java] UselessParentheses false positive with boolean operators
    • #2134: [java] PreserveStackTrace not handling Throwable.addSuppressed(...)
    • #2299: [java] UnnecessaryFullyQualifiedName false positive with similar package name
    • #2391: [java] UseDiamondOperator FP when expected type and constructed type have a different parameterization
    • #2528: [java] MethodNamingConventions - JUnit 5 method naming not support ParameterizedTest
    • #2739: [java] UselessParentheses false positive for string concatenation
    • #2748: [java] UnnecessaryCast false positive with unchecked cast
    • #2847: [java] New Rule: Use Explicit Types
    • #2973: [java] New rule: UnnecessaryBoxing
    • #3195: [java] Improve rule UnnecessaryReturn to detect more cases
    • #3218: [java] Generalize UnnecessaryCast to flag all unnecessary casts
    • #3221: [java] PrematureDeclaration false positive for unused variables
    • #3238: [java] Improve ExprContext, fix FNs of UnnecessaryCast
    • #3500: [java] UnnecessaryBoxing - check for Integer.valueOf(String) calls
    • #4239: [java] UnnecessaryLocalBeforeReturn - false positive with catch clause
    • #4268: [java] CommentDefaultAccessModifier: false positive with TestNG annotations
    • #4273: [java] CommentDefaultAccessModifier ignoredAnnotations should include "org.junit.jupiter.api.extension.RegisterExtension" by default
    • #4357: [java] Fix IllegalStateException in UseDiamondOperator rule
    • #4432: [java] [7.0-rc1] UnnecessaryImport - Unused static import is being used
    • #4455: [java] FieldNamingConventions: false positive with lombok's @UtilityClass
    • #4487: [java] UnnecessaryConstructor: false-positive with @Inject and @Autowired
    • #4511: [java] LocalVariableCouldBeFinal shouldn't report unused variables
    • #4512: [java] MethodArgumentCouldBeFinal shouldn't report unused parameters
    • #4557: [java] UnnecessaryImport FP with static imports of overloaded methods
    • #4578: [java] CommentDefaultAccessModifier comment needs to be before annotation if present
    • #4631: [java] UnnecessaryFullyQualifiedName fails to recognize illegal self reference in enums
    • #4645: [java] CommentDefaultAccessModifier - False Positive with JUnit5's ParameterizedTest
    • #4754: [java] EmptyControlStatementRule: Add allowCommentedBlocks property
    • #4816: [java] UnnecessaryImport false-positive on generic method call with on lambda
  • java-design
    • #174: [java] SingularField false positive with switch in method that both assigns and reads field
    • #1014: [java] LawOfDemeter: False positive with lambda expression
    • #1605: [java] LawOfDemeter: False positive for standard UTF-8 charset name
    • #2160: [java] Issues with Law of Demeter
    • #2175: [java] LawOfDemeter: False positive for chained methods with generic method call
    • #2179: [java] LawOfDemeter: False positive with static property access - should treat class-level property as global object, not dot-accessed property
    • #2180: [java] LawOfDemeter: False positive with Thread and ThreadLocalRandom
    • #2182: [java] LawOfDemeter: False positive with package-private access
    • #2188: [java] LawOfDemeter: False positive with fields assigned to local vars
    • #2536: [java] ClassWithOnlyPrivateConstructorsShouldBeFinal can't detect inner class
    • #3668: [java] ClassWithOnlyPrivateConstructorsShouldBeFinal - fix FP with inner private classes
    • #3754: [java] SingularField false positive with read in while condition
    • #3786: [java] SimplifyBooleanReturns should consider operator precedence
    • #3840: [java] LawOfDemeter disallows method call on locally created object
    • #4238: [java] Make LawOfDemeter not use the rulechain
    • #4254: [java] ImmutableField - false positive with Lombok @Setter
    • #4434: [java] [7.0-rc1] ExceptionAsFlowControl when simply propagating
    • #4456: [java] FinalFieldCouldBeStatic: false positive with lombok's @UtilityClass
    • #4477: [java] SignatureDeclareThrowsException: false-positive with TestNG annotations
    • #4490: [java] ImmutableField - false negative with Lombok @Getter
    • #4549: [java] Make LawOfDemeter results deterministic
  • java-documentation
    • #4369: [java] Improve CommentSize
    • #4416: [java] Fix reported line number in CommentContentRule
  • java-errorprone
    • #659: [java] MissingBreakInSwitch - last default case does not contain a break
    • #718: [java] BrokenNullCheck false positive with parameter/field confusion
    • #932: [java] SingletonClassReturningNewInstance false positive with double assignment
    • #1005: [java] CloneMethodMustImplementCloneable triggers for interfaces
    • #1669: [java] NullAssignment - FP with ternay and null as constructor argument
    • #1831: [java] DetachedTestCase reports abstract methods
    • #1899: [java] Recognize @SuppressWanings("fallthrough") for MissingBreakInSwitch
    • #2320: [java] NullAssignment - FP with ternary and null as method argument
    • #2532: [java] AvoidDecimalLiteralsInBigDecimalConstructor can not detect the case new BigDecimal(Expression)
    • #2579: [java] MissingBreakInSwitch detects the lack of break in the last case
    • #2880: [java] CompareObjectsWithEquals - false negative with type res
    • #2893: [java] Remove special cases from rule EmptyCatchBlock
    • #2894: [java] Improve MissingBreakInSwitch
    • #3071: [java] BrokenNullCheck FP with PMD 6.30.0
    • #3087: [java] UnnecessaryBooleanAssertion overlaps with SimplifiableTestAssertion
    • #3100: [java] UseCorrectExceptionLogging FP in 6.31.0
    • #3173: [java] UseProperClassLoader false positive
    • #3351: [java] ConstructorCallsOverridableMethod ignores abstract methods
    • #3400: [java] AvoidUsingOctalValues FN with underscores
    • #3843: [java] UseEqualsToCompareStrings should consider return type
    • #4063: [java] AvoidBranchingStatementAsLastInLoop: False-negative about try/finally block
    • #4356: [java] Fix NPE in CloseResourceRule
    • #4449: [java] AvoidAccessibilityAlteration: Possible false positive in AvoidAccessibilityAlteration rule when using Lambda expression
    • #4457: [java] OverrideBothEqualsAndHashcode: false negative with anonymous classes
    • #4493: [java] MissingStaticMethodInNonInstantiatableClass: false-positive about @Inject
    • #4505: [java] ImplicitSwitchFallThrough NPE in PMD 7.0.0-rc1
    • #4510: [java] ConstructorCallsOverridableMethod: false positive with lombok's @Value
    • #4513: [java] UselessOperationOnImmutable various false negatives with String
    • #4514: [java] AvoidLiteralsInIfCondition false positive and negative for String literals when ignoreExpressions=true
    • #4546: [java] OverrideBothEqualsAndHashCode ignores records
    • #4719: [java] UnnecessaryCaseChange: example doc toUpperCase() should compare to a capitalized string
  • java-multithreading
    • #2537: [java] DontCallThreadRun can't detect the case that call run() in this.run()
    • #2538: [java] DontCallThreadRun can't detect the case that call run() in foo.bar.run()
    • #2577: [java] UseNotifyAllInsteadOfNotify falsely detect a special case with argument: foo.notify(bar)
    • #4483: [java] NonThreadSafeSingleton false positive with double-checked locking
  • java-performance
    • #1224: [java] InefficientEmptyStringCheck false negative in anonymous class
    • #2587: [java] AvoidArrayLoops could also check for list copy through iterated List.add()
    • #2712: [java] SimplifyStartsWith false-positive with AssertJ
    • #3486: [java] InsufficientStringBufferDeclaration: Fix NPE
    • #3848: [java] StringInstantiation: false negative when using method result
    • #4070: [java] A false positive about the rule RedundantFieldInitializer
    • #4458: [java] RedundantFieldInitializer: false positive with lombok's @Value
  • javascript
    • #4673: [javascript] CPD: Added support for decorator notation
  • kotlin
    • #419: [kotlin] Add support for Kotlin
    • #4389: [kotlin] Update grammar to version 1.8
  • plsql
    • #4820: [plsql] WITH clause is ignored for SELECT INTO statements
  • swift
    • #1877: [swift] Feature/swift rules
    • #1882: [swift] UnavailableFunction Swift rule
    • #4697: [swift] Support Swift 5.9 features (mainly macros expansion expressions)
  • xml
    • #1800: [xml] Unimplement org.w3c.dom.Node from the XmlNodeWrapper
  • xml-bestpractices
    • #4592: [xml] Add MissingEncoding rule

✨ External Contributions

  • #1658: [core] Node support for Antlr-based languages - Matías Fraga (@matifraga)
  • #1698: [core] [swift] Antlr Base Parser adapter and Swift Implementation - Lucas Soncini (@lsoncini)
  • #1774: [core] Antlr visitor rules - Lucas Soncini (@lsoncini)
  • #1877: [swift] Feature/swift rules - Matías Fraga (@matifraga)
  • #1881: [doc] Add ANTLR documentation - Matías Fraga (@matifraga)
  • #1882: [swift] UnavailableFunction Swift rule - Tomás de Lucca (@tomidelucca)
  • #2830: [apex] Apexlink POC - Kevin Jones (@nawforce)
  • #3866: [core] Add CLI Progress Bar - @JerritEic (@JerritEic)
  • #4093: [apex] Summit-AST Apex module - Part 1 - Edward Klimoshenko (@eklimo)
  • #4151: [apex] Summit-AST Apex module - Part 2 - expression nodes - Aaron Hurst (@aaronhurst-google)
  • #4171: [apex] Summit-AST Apex module - Part 3 - initializers - Aaron Hurst (@aaronhurst-google)
  • #4206: [apex] Summit-AST Apex module - Part 4 - statements - Aaron Hurst (@aaronhurst-google)
  • #4219: [apex] Summit-AST Apex module - Part 5 - annotations, triggers, misc. - Aaron Hurst (@aaronhurst-google)
  • #4242: [apex] Merge 6.52 into experimental-apex-parser - Aaron Hurst (@aaronhurst-google)
  • #4251: [apex] Summit-AST Apex module - Part 6 Passing testsuite - Aaron Hurst (@aaronhurst-google)
  • #4402: [javascript] CPD: add support for Typescript using antlr4 grammar - Paul Guyot (@pguyot)
  • #4403: [julia] CPD: Add support for Julia code duplication - Wener (@wener-tiobe)
  • #4412: [doc] Added new error msg to ConstantsInInterface - David Ljunggren (@dague1)
  • #4426: [cpd] New XML to HTML XLST report format for PMD CPD - mohan-chinnappan-n (@mohan-chinnappan-n)
  • #4428: [apex] ApexBadCrypto bug fix for #4427 - inline detection of hard coded values - Steven Stearns (@sfdcsteve)
  • #4431: [coco] CPD: Coco support for code duplication detection - Wener (@wener-tiobe)
  • #4444: [java] CommentDefaultAccessModifier - ignore org.junit.jupiter.api.extension.RegisterExtension by default - Nirvik Patel (@nirvikpatel)
  • #4448: [apex] Bump summit-ast to new release 2.1.0 (and remove workaround) - Aaron Hurst (@aaronhurst-google)
  • #4450: [java] Fix #4449 AvoidAccessibilityAlteration: Correctly handle Lambda expressions in PrivilegedAction scenarios - Seren (@mohui1999)
  • #4452: [doc] Update PMD_APEX_ROOT_DIRECTORY documentation reference - nwcm (@nwcm)
  • #4470: [cpp] CPD: Added strings as literal and ignore identifiers in sequences - Wener (@wener-tiobe)
  • #4474: [java] ImmutableField: False positive with lombok (fixes #4254) - Pim van der Loos (@PimvanderLoos)
  • #4479: [apex] Merge main (7.x) branch into experimental-apex-parser and fix tests - Aaron Hurst (@aaronhurst-google)
  • #4488: [java] Fix #4477: A false-positive about SignatureDeclareThrowsException - AnnaDev (@LynnBroe)
  • #4494: [java] Fix #4487: A false-positive about UnnecessaryConstructor and @Inject and @Autowired - AnnaDev (@LynnBroe)
  • #4495: [java] Fix #4493: false-positive about MissingStaticMethodInNonInstantiatableClass and @Inject - AnnaDev (@LynnBroe)
  • #4507: [java] Fix #4503: A false negative about JUnitTestsShouldIncludeAssert and testng - AnnaDev (@LynnBroe)
  • #4520: [doc] Fix typo: missing closing quotation mark after CPD-END - João Dinis Ferreira (@joaodinissf)
  • #4528: [apex] Update to apexlink - Kevin Jones (@nawforce)
  • #4533: [java] Fix #4063: False-negative about try/catch block in Loop - AnnaDev (@LynnBroe)
  • #4536: [java] Fix #4268: CommentDefaultAccessModifier - false positive with TestNG's @Test annotation - AnnaDev (@LynnBroe)
  • #4537: [java] Fix #4455: A false positive about FieldNamingConventions and UtilityClass - AnnaDev (@LynnBroe)
  • #4538: [java] Fix #4456: A false positive about FinalFieldCouldBeStatic and UtilityClass - AnnaDev (@LynnBroe)
  • #4540: [java] Fix #4457: false negative about OverrideBothEqualsAndHashcode - AnnaDev (@LynnBroe)
  • #4541: [java] Fix #4458: A false positive about RedundantFieldInitializer and @Value - AnnaDev (@LynnBroe)
  • #4542: [java] Fix #4510: A false positive about ConstructorCallsOverridableMethod and @Value - AnnaDev (@LynnBroe)
  • #4553: [java] Fix #4492: GuardLogStatement gives false positive when argument is a Java method reference - Anastasiia Koba (@anastasiia-koba)
  • #4562: [apex] Fixes #4556 - Update Apex bind regex match for all possible combinations - nwcm (@nwcm)
  • #4637: [java] fix #4634 - JUnit4TestShouldUseTestAnnotation false positive with TestNG - Krystian Dabrowski (@krdabrowski)
  • #4640: [cli] Launch script fails if run via "bash pmd" - Shai Bennathan (@shai-bennathan)
  • #4649: [apex] Add SObjectType and SObjectField to list of injectable SOQL variable types - Richard Corfield (@rcorfieldffdc)
  • #4651: [doc] Add "Tencent Cloud Code Analysis" in Tools / Integrations - yale (@cyw3)
  • #4664: [cli] CPD: Fix NPE when only --file-list is specified - Wener (@wener-tiobe)
  • #4665: [java] Doc: Fix references AutoClosable -> AutoCloseable - Andrey Bozhko (@AndreyBozhko)
  • #4673: [javascript] CPD: Added support for decorator notation - Wener (@wener-tiobe)
  • #4677: [apex] Add new rule: OperationWithHighCostInLoop - Thomas Prouvot (@tprouvot)
  • #4698: [swift] Add macro expansion support for swift 5.9 - Richard B. (@kenji21)
  • #4706: [java] DetachedTestCase should not report on abstract methods - Debamoy Datta (@Debamoy)
  • #4719: [java] UnnecessaryCaseChange: example doc toUpperCase() should compare to a capitalized string - ciufudean (@ciufudean)
  • #4738: [doc] Added reference to the PMD extension for bld - Erik C. Thauvin (@ethauvin)
  • #4749: Fixes NoSuchMethodError on processing errors in pmd-compat6 - Andreas Bergander (@bergander)
  • #4750: [core] Fix flaky SummaryHTMLRenderer - 219sansim (@219sansim)
  • #4752: [core] Fix flaky LatticeRelationTest - 219sansim (@219sansim)
  • #4754: [java] EmptyControlStatementRule: Add allowCommentedBlocks property - Andreas Bergander (@bergander)
  • #4759: [java] fix: remove delimiter attribute from ruleset category/java/errorprone.xml - Marcin Dąbrowski (@marcindabrowski)
  • #4825: [plsql] Fix ignored WITH clause for SELECT INTO statements - Laurent Bovet (@lbovet)
  • #4857: [javascript] Fix UnnecessaryBlock issues with empty statements - Oleksandr Shvets (@oleksandr-shvets)