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??-June-2019 - 6.16.0

The PMD team is pleased to announce PMD 6.16.0.

This is a minor release.

New and noteworthy

Fixed Issues

API Changes

Deprecated APIs

Reminder: Please don’t use members marked with the annotation InternalApi, as they will likely be removed, hidden, or otherwise intentionally broken with 7.0.0.

In ASTs

As part of the changes we’d like to do to AST classes for 7.0.0, we would like to hide some methods and constructors that rule writers should not have access to. The following usages are now deprecated in the Java AST (with other languages to come):

  • Manual instantiation of nodes. Constructors of node classes are deprecated and marked InternalApi. Nodes should only be obtained from the parser, which for rules, means that never need to instantiate node themselves. Those constructors will be made package private with 7.0.0.
  • Subclassing of abstract node classes, or usage of their type. Version 7.0.0 will bring a new set of abstractions that will be public API, but the base classes are and will stay internal. You should not couple your code to them.
    • In the meantime you should use interfaces like JavaNode or Node, or the other published interfaces in this package, to refer to nodes generically.
    • Concrete node classes will be made final with 7.0.0.
  • Setters found in any node class or interface. Rules should consider the AST immutable. We will make those setters package private with 7.0.0.

Please look at net.sourceforge.pmd.lang.java.ast to find out the full list of deprecations.

External Contributions