PMD 6.19.0 released

31 October 2019

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31-October-2019 - 6.19.0

The PMD team is pleased to announce PMD 6.19.0.

This is a minor release.

Table Of Contents

• New and noteworthy
  • Updated PMD Designer
  • Java Metrics
  • Modified Rules
  • Renamed Rules
• Fixed Issues
• API Changes
  • Deprecated APIs
    • For removal
    • Internal APIs
• External Contributions

New and noteworthy

Updated PMD Designer

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

Java Metrics

• The new metric “Class Fan Out Complexity” has been added. See Java Metrics Documentation for details.

Modified Rules

• The Java rules InvalidLogMessageFormat and MoreThanOneLogger (java-errorprone) now both support Log4j2. Note that the rule “InvalidSlf4jMessageFormat” has been renamed to “InvalidLogMessageFormat” to reflect the fact, that it now supports more than slf4j.

• The Java rule LawOfDemeter (java-design) ignores now also Builders, that are not assigned to a local variable, but just directly used within a method call chain. The method, that creates the builder needs to end with “Builder”, e.g. newBuilder() or initBuilder() works. This change fixes a couple of false positives.

• The Java rule DataflowAnomalyAnalysis (java-errorprone) doesn’t check for UR anomalies (undefined and then referenced) anymore. These checks were all false-positives, since actual UR occurrences would lead to compile errors.

• The java rule DoNotUseThreads (java-multithreading) has been changed to not report usages of java.lang.Runnable anymore. Just using Runnable does not automatically create a new thread. While the check for Runnable has been removed, the rule now additionally checks for usages of Executors and ExecutorService. Both create new threads, which are not managed by a J2EE server.

Renamed Rules

• The Java rule InvalidSlf4jMessageFormat has been renamed to InvalidLogMessageFormat since it supports now both slf4j and log4j2 message formats.

Fixed Issues

• core
  • #1978: [core] PMD fails on excluding unknown rules
  • #2014: [core] Making add(SourceCode sourceCode) public for alternative file systems
  • #2020: [core] Wrong deprecation warnings for unused XPath attributes
  • #2036: [core] Wrong include/exclude patterns are silently ignored
  • #2048: [core] Enable type resolution by default for XPath rules
  • #2067: [core] Build issue on Windows
  • #2068: [core] Rule loader should use the same resources loader for the ruleset
  • #2071: [ci] Add travis build on windows
  • #2072: [test][core] Not enough info in “test setup error” when numbers of lines do not match
  • #2082: [core] Incorrect logging of deprecated/renamed rules
• java
  • #2042: [java] PMD crashes with ClassFormatError: Absent Code attribute…
• java-bestpractices
  • #1531: [java] UnusedPrivateMethod false-positive with method result
  • #2025: [java] UnusedImports when @see / @link pattern includes a FQCN
• java-codestyle
  • #2017: [java] UnnecessaryFullyQualifiedName triggered for inner class
• java-design
  • #1912: [java] Metrics not computed correctly with annotations
• java-errorprone
  • #336: [java] InvalidSlf4jMessageFormat applies to log4j2
  • #1636: [java] Stop checking UR anomalies for DataflowAnomalyAnalysis
• java-multithreading
  • #1627: [java] DoNotUseThreads should not warn on Runnable
• doc
  • #2058: [doc] CLI reference for -norulesetcompatibility shows a boolean default value

API Changes

Deprecated APIs

For removal

• pmd-core
  • All the package net.sourceforge.pmd.dcd and its subpackages. See DCD.
  • In LanguageRegistry:
    • commaSeparatedTerseNamesForLanguageVersion
    • commaSeparatedTerseNamesForLanguage
    • findAllVersions
    • findLanguageVersionByTerseName
    • getInstance
  • RuleSet#getExcludePatterns. Use the new method getFileExclusions instead.
  • RuleSet#getIncludePatterns. Use the new method getFileInclusions instead.
  • Parser#canParse
  • Parser#getSuppressMap
  • RuleBuilder#RuleBuilder. Use the new constructor with the correct ResourceLoader instead.
  • RuleFactory#RuleFactory. Use the new constructor with the correct ResourceLoader instead.
• pmd-java
  • CanSuppressWarnings and its implementations
  • isSuppressed
  • getDeclaringType.
  • isSupressed
  • ASTMethodDeclarator
  • getMethodName
  • getBlock
  • getParameterCount
• pmd-apex
  • CanSuppressWarnings and its implementations
  • isSupressed

Internal APIs

• pmd-core
  • All the package net.sourceforge.pmd.util and its subpackages, except net.sourceforge.pmd.util.datasource and net.sourceforge.pmd.util.database.
  • GridBagHelper
  • ColumnDescriptor

External Contributions

• #2010: [java] LawOfDemeter to support inner builder pattern - Gregor Riegler
• #2012: [java] Fixes 336, slf4j log4j2 support - Mark Hall
• #2032: [core] Allow adding SourceCode directly into CPD - Nathan Braun
• #2047: [java] Fix computation of metrics with annotations - Andi Pabst
• #2065: [java] Stop checking UR anomalies - Carlos Macasaet
• #2068: [core] Rule loader should use the same resources loader for the ruleset - Chen Yang
• #2070: [core] Fix renderer tests for windows builds - Saladoc
• #2073: [test][core] Add expected and actual line of numbers to message wording - snuyanzin
• #2076: [java] Add Metric ClassFanOutComplexity - Andi Pabst
• #2078: [java] DoNotUseThreads should not warn on Runnable #1627 - Michael Clay