pmd/docs/pages/release_notes.md

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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

New Rules

• 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.

Fixed Issues

• apex
  • #1542: [apex] Include the documentation category
• java
  • #1556: [java] Default methods should not be considered abstract
• 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
• plsql
  • #1508: [plsql] Parse Exception when using SELECT COUNT(*)
  • #1509: [plsql] Parse Exception with OUTER/INNER Joins
  • #1511: [plsql] Parse Exception with IS NOT NULL

API Changes

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

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