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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.

{% tocmaker is_release_notes_processor %}

🚀 New and noteworthy

Collections exposed as XPath attributes

Up to now, all AST node getters would be exposed to XPath, as long as the return type was a primitive (boxed or unboxed), String or Enum. That meant that collections, even of these basic types, were not exposed, so for instance accessing Apex's ASTUserClass.getInterfaceNames() to list the interfaces implemented by a class was impossible from XPath, and would require writing a Java rule to check it.

Since this release, PMD will also expose any getter returning a collection of any supported type as a sequence through an XPath attribute. They would require to use apropriate XQuery functions to manipulate the sequence. So for instance, to detect any given ASTUserClass in Apex that implements Queueable, it is now possible to write:

/UserClass[@InterfaceNames = 'Queueable']

🐛 Fixed Issues

  • core
    • #4467: [core] Expose collections from getters as XPath sequence attributes
    • #4978: [core] Referenced Rulesets do not emit details on validation errors
    • #4983: [cpd] Fix CPD crashes about unicode escapes
  • java
    • #4912: [java] Unable to parse some Java9+ resource references
    • #4973: [java] Stop parsing Java for CPD
    • #4980: [java] Bad intersection, unrelated class types java.lang.Object[] and java.lang.Number
    • #4988: [java] Fix impl of ASTVariableId::isResourceDeclaration / VariableId/@ResourceDeclaration
    • #5006: [java] Bad intersection, unrelated class types Child and Parent<? extends Child>
  • java-bestpractices
    • #4278: [java] UnusedPrivateMethod FP with Junit 5 @MethodSource and default factory method name
    • #4852: [java] ReplaceVectorWithList false-positive (neither Vector nor List usage)
    • #4975: [java] UnusedPrivateMethod false positive when using @MethodSource on a @Nested test
    • #4985: [java] UnusedPrivateMethod false-positive / method reference in combination with custom object
  • java-codestyle
    • #4930: [java] EmptyControlStatement should not allow empty try with concise resources
  • java-errorprone
    • #4042: [java] A false negative about the rule StringBufferInstantiationWithChar
  • java-multithreading
    • #2368: [java] False positive UnsynchronizedStaticFormatter in static initializer

🚨 API Changes

Deprecated API

  • pmd-java
    • {% jdoc !!java::lang.java.ast.ASTResource#getStableName() %} and the corresponding attribute @StableName

✨ External Contributions

{% endtocmaker %}