Apache Maven Compiler Plugin Version 3.9.0 Released

The Apache Maven team is pleased to announce the release of the Apache Maven Compiler Plugin, version 3.9.0.

The Compiler Plugin is used to compile the sources of your project.

You should specify the version in your project's plugin configuration:

1<plugin>
2  <groupId>org.apache.maven.plugins</groupId>
3  <artifactId>maven-compiler-plugin</artifactId>
4  <version>3.9.0</version>
5</plugin>

Release Notes - Maven Compiler Plugin - Version 3.9.0

• Bugs:

  • MCOMPILER-272 - When annotationProcessorPaths has multiple entries, only the transitive dependencies of the first entry are added
  • MCOMPILER-359 - plexus-java 0.9.10 causes a NullPointer in compiler-plugin 3.8.0
  • MCOMPILER-373 - Unable to compile MR jar code against older directories
  • MCOMPILER-410 - CI Broken by JDK 15 changes
  • MCOMPILER-455 - preparePaths does not take toolchain into account when parsing module-info.class

• Improvements:

  • MCOMPILER-376 - Change default source/target to 1.7 (new minimum for JDK 12)
  • MCOMPILER-382 - Remove superfluous exception declarations
  • MCOMPILER-383 - Use Java 7 type inference more
  • MCOMPILER-384 - Remove null checks in conjunction with instanceof
  • MCOMPILER-385 - Minor performance improvements in CompilerMojo
  • MCOMPILER-404 - Update default source/target from 1.6 to 1.7
  • MCOMPILER-405 - Update plexus-java to 1.1.0
  • MCOMPILER-411 - make build Reproducible
  • MCOMPILER-427 - Lack of guide for cross-compilation for JDK 9+
  • MCOMPILER-428 - Documentation regarding useIncrementalCompilation not very useful
  • MCOMPILER-449 - Improve parameter description
  • MCOMPILER-471 - Require Java 8
  • MCOMPILER-475 - Shared GitHub Actions

• Tasks:

  • MCOMPILER-189 - Source Xref report is missing classes due to simple name collision, update maven-jxr-plugin
  • MCOMPILER-398 - Simplify the implementation of the inclusion/exclusion logic
  • MCOMPILER-467 - Improve compile mojo parameter multiReleaseOutput docs

• Dependency upgrade:

  • MCOMPILER-399 - Upgrade mockito to latest 2.x

Enjoy,

• The Apache Maven team