PMD 6.24.0 Released

• Downloads: https://github.com/pmd/pmd/releases/tag/pmd_releases%2F6.24.0
• Documentation: https://pmd.github.io/pmd-6.24.0/

24-May-2020 - 6.24.0

The PMD team is pleased to announce PMD 6.24.0.

This is a minor release.

Table Of Contents

• New and noteworthy
  • CPD now supports XML as well
  • Updated PMD Designer
  • New Rules
  • Deprecated Rules
• Fixed Issues
• API Changes
  • Deprecated APIs
  • Experimental APIs
• External Contributions
• Stats

New and noteworthy

CPD now supports XML as well

Thanks to Fernando Cosso CPD can now find duplicates in XML files as well.
This is useful to find duplicated sections in XML files.

Updated PMD Designer

This PMD release ships a new version of the pmd-designer.
For the changes, see PMD Designer Changelog.

New Rules

• The new Java Rule LiteralsFirstInComparisons (java-bestpractices)
  find String literals, that are used in comparisons and are not positioned first. Using the String literal
  as the receiver of e.g. equals helps to avoid NullPointerExceptions.

  This rule is replacing the two old rules PositionLiteralsFirstInComparisons
  and PositionLiteralsFirstInCaseInsensitiveComparisons and extends the check
  for the methods compareTo, compareToIgnoreCase and contentEquals in addition to equals and
  equalsIgnoreCase.

  Note: This rule also replaces the two mentioned rules in Java's quickstart ruleset.

Deprecated Rules

• The two Java rules PositionLiteralsFirstInComparisons
  and PositionLiteralsFirstInCaseInsensitiveComparisons have been deprecated
  in favor of the new rule LiteralsFirstInComparisons.

Fixed Issues

• apex-bestpractices
  • #2468: [apex] Unused Local Variable fails on blocks
• core
  • #2444: [core] Support reproducible builds
  • #2484: [core] Update maven-enforcer-plugin to require Java 118
• c#
  • #2495: [c#] Support for interpolated verbatim strings
• java
  • #2472: [java] JavaCharStream throws an Error on invalid escape
• java-bestpractices
  • #2145: [java] Deprecate rules PositionLiteralsFirstIn(CaseInsensitive)Comparisons in favor of LiteralsFirstInComparisons
  • #2288: [java] JUnitTestsShouldIncludeAssert: Add support for Hamcrest MatcherAssert.assertThat
  • #2437: [java] AvoidPrintStackTrace can't detect the case e.getCause().printStackTrace()
• java-codestyle
  • #2476: [java] MethodNamingConventions - Add support for JUnit 5 method naming
• java-errorprone
  • #2477: [java] JUnitSpelling false-positive for JUnit5/4 tests
• swift
  • #2473: [swift] Swift 5 (up to 5.2) support for CPD

API Changes

Deprecated APIs

• BaseLanguageModule#addVersion(String, LanguageVersionHandler, boolean)
• Some members of TokenMgrError, in particular, a new constructor is available
  that should be preferred to the old ones
• AntlrTokenManager.ANTLRSyntaxError

Experimental APIs

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

• The experimental methods in BaseLanguageModule have been replaced by a
  definitive API.

External Contributions

• #2446: [core] Update maven-compiler-plugin to 3.8.1 - Artem Krosheninnikov
• #2448: [java] Operator Wrap check - Harsh Kukreja
• #2449: [plsql] Additional info in SqlStatement, FormalParameter and FetchStatement - Grzegorz Sudolski
• #2452: [doc] Fix "Making Rulesets" doc sample code indentation - Artur Dryomov
• #2457: [xml] Adding XML to CPD supported languages - Fernando Cosso
• #2465: [dependencies] Upgrade hamcrest, mockito and JUnit - Artem Krosheninnikov
• #2469: [apex] fix false positive unused variable if only a method is called - Gwilym Kuiper
• #2475: [swift] Swift 4.2-5.2 support - kenji21
• #2476: [java] MethodNamingConventions - Add support for JUnit 5 method naming - Bruno Ritz
• #2478: [java] New rule: LiteralsFirstInComparisons - John-Teng
• #2479: [java] False positive with Hamcrest's assertThat - andreoss
• #2481: [java] Fix JUnitSpellingRule false positive - Artem Krosheninnikov
• #2493: [java] Deprecate redundant String Comparison rules - John-Teng
• #2495: [c#] Support for interpolated verbatim strings - Maikel Steneker

Stats

• 114 commits
• 29 closed tickets & PRs
• Days since last release: 30