pmd/docs/pages/release_notes.md

title	permalink	keywords
PMD Release Notes	pmd_release_notes.html	changelog, release notes

{{ site.pmd.date }} - {{ site.pmd.version }}

The PMD team is pleased to announce PMD {{ site.pmd.version }}.

This is a {{ site.pmd.release_type }} release.

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New and noteworthy

### Updatex Apex Support

• The Apex language support has been bumped to version 45 (Spring '19). All new language features are now properly parsed and processed.

New Rules

• The new Java rule {% rule "java/multithreading/UnsynchronizedStaticFormatter" %} (java-multithreading) detects unsynchronized usages of static java.text.Format instances. This rule is a more generic replacement of the rule {% rule "java/multithreading/UnsynchronizedStaticDateFormatter" %} which focused just on DateFormat.

• The new Java rule {% rule "java/bestpractices/ForLoopVariableCount" %} (java-bestpractices) checks for the number of control variables in a for-loop. Having a lot of control variables makes it harder to understand what the loop does. The maximum allowed number of variables is by default 1 and can be configured by a property.

• The new Java rule {% rule "java/bestpractices/AvoidReassigningLoopVariables" %} (java-bestpractices) searches for loop variables that are reassigned. Changing the loop variables additionally to the loop itself can lead to hard-to-find bugs.

• The new Java rule {% rule "java/codestyle/UseDiamondOperator" %} (java-codestyle) looks for constructor calls with explicit type parameters. Since Java 1.7, these type parameters are not necessary anymore, as they can be inferred now.

Modified Rules

• The Java rule {% rule "java/codestyle/LocalVariableCouldBeFinal" %} (java-codestyle) has a new property ignoreForEachDecl, which is by default disabled. The new property allows for ignoring non-final loop variables in a for-each statement.

Deprecated Rules

• The Java rule {% rule "java/multithreading/UnsynchronizedStaticDateFormatter" %} has been deprecated and will be removed with PMD 7.0.0. The rule is replaced by the more general {% rule "java/multithreading/UnsynchronizedStaticFormatter" %}.

Fixed Issues

• all
  • #1196: [core] CPD results not consistent between runs
• apex
  • #1542: [apex] Include the documentation category
  • #1546: [apex] PMD parsing exception for Apex classes using 'inherited sharing' keyword
• java
  • #1556: [java] Default methods should not be considered abstract
  • #1578: [java] Private field is detected as public inside nested classes in interfaces
• java-bestpractices
  • #658: [java] OneDeclarationPerLine: False positive for loops
  • #1518: [java] New rule: AvoidReassigningLoopVariable
  • #1519: [java] New rule: ForLoopVariableCount
• java-codestyle
  • #1513: [java] LocalVariableCouldBeFinal: allow excluding the variable in a for-each loop
  • #1517: [java] New Rule: UseDiamondOperator
• java-errorprone
  • #1035: [java] ReturnFromFinallyBlock: False positive on lambda expression in finally block
  • #1549: [java] NPE in PMD 6.8.0 InvalidSlf4jMessageFormat
• java-multithreading
  • #1533: [java] New rule: UnsynchronizedStaticFormatter
• plsql
  • #1507: [plsql] Parse Exception when using '||' operator in where clause
  • #1508: [plsql] Parse Exception when using SELECT COUNT(*)
  • #1509: [plsql] Parse Exception with OUTER/INNER Joins
  • #1511: [plsql] Parse Exception with IS NOT NULL
  • #1526: [plsql] ParseException when using TableCollectionExpression
  • #1583: [plsql] Update Set Clause should allow multiple columns
  • #1586: [plsql] Parse Exception when functions are used with LIKE

API Changes

Deprecated API

• {% jdoc core::lang.rule.stat.StatisticalRule %} and the related helper classes and base rule classes are deprecated for removal in 7.0.0. This includes all of {% jdoc_package core::stat %} and {% jdoc_package core::lang.rule.stat %}, and also {% jdoc java::lang.java.rule.AbstractStatisticalJavaRule %}, {% jdoc apex::lang.apex.rule.AbstractStatisticalApexRule %} and the like. The methods {% jdoc !c!core::Report#addMetric(core::stat.Metric) %} and {% jdoc core::ThreadSafeReportListener#metricAdded(core::stat.Metric) %} will also be removed.

External Contributions

• #1503: [java] Fix for ReturnFromFinallyBlock false-positives - RishabhDeep Singh
• #1514: [java] LocalVariableCouldBeFinal: allow excluding the variable in a for-each loop - Kris Scheibe
• #1516: [java] OneDeclarationPerLine: Don't report multiple variables in a for statement. - Kris Scheibe
• #1520: [java] New rule: ForLoopVariableCount: check the number of control variables in a for loop - Kris Scheibe
• #1521: [java] Upgrade to ASM7 for JDK 11 support - Mark Pritchard
• #1530: [java] New rule: AvoidReassigningLoopVariables - Kris Scheibe
• #1534: [java] This is the change regarding the usediamondoperator #1517 - hemanshu070
• #1545: [doc] fixing dead links + tool to check for dead links automatically - Kris Scheibe
• #1551: [java] InvalidSlf4jMessageFormatRule should not throw NPE for enums - Robbie Martinus
• #1552: [core] Upgrading Google Gson from 2.5 to 2.8.5 - Thunderforge
• #1553: [core] Upgrading System Rules dependency from 1.8.0 to 1.19.0 - Thunderforge
• #1554: [plsql] updates should allow for multiple statements - tashiscool
• #1584: [core] Fixes 1196: inconsistencies of clones returned by different CPD executions for the same files - Bruno Ferreira

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