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??-January-2019 - 6.11.0

The PMD team is pleased to announce PMD 6.11.0.

This is a minor release.

New and noteworthy

New Rules

  • The new Java rule 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 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 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 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