PMD 6.29.0 released

24 October 2020

24-October-2020 - 6.29.0

The PMD team is pleased to announce PMD 6.29.0.

This is a minor release.

The Apex language support has been bumped to version 50 (Winter ‘21). All new language features are now properly parsed and processed. Especially the Safe Navigation Operator is now supported. See also Salesforce Winter ‘21 Release Notes

The new Apex rule OperationWithLimitsInLoop (apex-performance) finds operations in loops that may hit governor limits such as DML operations, SOQL queries and more. The rule replaces the three rules “AvoidDmlStatementsInLoops”, “AvoidSoqlInLoops”, and “AvoidSoslInLoops”.

The Java rule DoNotCallSystemExit has been renamed to DoNotTerminateVM, since it checks for all the following calls: System.exit(int), Runtime.exit(int), Runtime.halt(int). All these calls terminate the Java VM, which is bad, if the VM runs an application server which many independent applications.

The Apex rules AvoidDmlStatementsInLoops, AvoidSoqlInLoops and AvoidSoslInLoops (apex-performance) are deprecated in favour of the new rule OperationWithLimitsInLoop. The deprecated rules will be removed with PMD 7.0.0.

apex
- #2839: [apex] Apex classes with safe navigation operator from Winter 21 (50.0) are skipped
apex-performance
- #1713: [apex] Mark Database DML statements in For Loop
core
- #2831: [core] Fix XMLRenderer newlines when running under IBM Java
java-errorprone
- #2157: [java] Improve DoNotCallSystemExit: permit call in main(), flag System.halt
- #2764: [java] CloseResourceRule does not recognize multiple assignment done to resource
miscellaneous
- #2823: [doc] Renamed/Moved rules are missing in documentation
vf (Salesforce VisualForce)
- #2765: [vf] Attributes with dot cause a VfParseException

#2803: [java] Improve DoNotCallSystemExit (Fixes #2157) - Vitaly Polonetsky
#2809: [java] Move test config from file to test class - Stefan Birkner
#2810: [core] Move method “renderTempFile” to XMLRendererTest - Stefan Birkner
#2811: [java] CloseResource - Fix #2764: False-negative when re-assigning variable - Andi Pabst
#2813: [core] Use JUnit’s TemporaryFolder rule - Stefan Birkner
#2816: [apex] Detect ‘Database’ method invocations inside loops - Jeff Bartolotta
#2829: [doc] Small correction in pmd_report_formats.md - Gustavo Krieger
#2834: [vf] Allow attributes with dot in Visualforce - rmohan20
#2842: [core] Bump antlr4 from 4.7 to 4.7.2 - Adrien Lecharpentier
#2865: [java] (doc) Update ExcessiveImports example code for clarity - Gustavo Krieger
#2866: [java] (doc) Fix example for CouplingBetweenObjects - Gustavo Krieger