Apache Groovy 2.5.12 and 3.0.4 Released with Improvements and Bugfixes

Apache Groovy 2.5.12 and 3.0.4 have been released. Version 3.0.4 is the maintenance release for the 3_0_X branch, and the project recommends that all users of this branch upgrade to the latest version.

The releases contain a total of 45 bug fixes and improvements.

Improvements (3.0.4)

[GROOVY-9504] - Add path support for the slurper class.

[GROOVY-9512] - Use a different switch to control the indy callback fixed threshold.

[GROOVY-9545] - DGM: Add a toArray(Class) extension method for java.util.stream.Stream .

[GROOVY-9549] - groovydoc: Interfaces that were not displayed in class descriptions are now shown.

Bugfixes (3.0.4)

[GROOVY-4554] - JavaStubGenerator incompatibility with package-info.groovy files.

[GROOVY-8774] - Stub generator cannot handle package-info .

[GROOVY-9398] - GroovyScriptEngine cannot recompile classes that use generic parameters.

[GROOVY-9405] - JUnit 5 IncompatibleClassChangeError.

[GROOVY-9432] - ClassNotFoundException when using Grapes with Picocli.

[GROOVY-9465] - GroovyDoc: class header not always displayed.

[GROOVY-9501] - MissingPropertyException when a subclass accesses a private static field of an inner class.

[GROOVY-9505] - UnsupportedOperationException: feature requires ASM8 on JDK 14 in Spock tests.

[GROOVY-9506] - Joint compilation broken.

Bugfixes (2.5.12)

[GROOVY-8966] - NumberRange in exclusive state is converted to inclusive when used with List.getAt(range) .

[GROOVY-9501] - MissingPropertyException when a subclass accesses a private static field of an inner class.

[GROOVY-9506] - Joint compilation broken.

[GROOVY-9517] - Runtime type‑casting error from Class Array to Class List under @CompileStatic .

[GROOVY-9518] - Cannot infer closure parameter type when calling a constructor.

[GROOVY-9519] - CLIBuilder: option type: Integer, defaultValue '0' produces a boolean when a default value is applied.

[GROOVY-9528] - CLIBuilder: "error: Missing required options" when an unknown option is provided.

Dependency Upgrades

[GROOVY-9552] - Bump Apache Ant versions to address CVE‑2020‑1945 (insecure temporary file vulnerability).

[GROOVY-9553] - Upgrade Picocli to version 4.3.2.

Documentation

[GROOVY-9531] - Improve documentation for Groovy 3.0's CliBuilder .

For full details, see the official release notes.