JUnit redistributable library was removed in Gradle 9+

[donbex]

Presumably due to the move to Groovy 4, Gradle distributions from version 9 onwards do not ship with a JUnit JAR any more, causing groovyw to fail with:

Exception in thread "main" java.lang.RuntimeException: Could not locate the JAR for junit in Gradle distribution '/Users/alessandro.pezzoni/.gradle/wrapper/dists/gradle-9.2.0-bin/11i5gvueggl8a5cioxuftxrik/gradle-9.2.0'.
        at org.gradle.wrapper.GroovyBootstrapMainStarter.findJars(GroovyBootstrapMainStarter.java:49)
        at org.gradle.wrapper.GroovyBootstrapMainStarter.start(GroovyBootstrapMainStarter.java:31)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:103)
        at org.gradle.wrapper.GroovyWrapperMain.main(GroovyWrapperMain.java:60)

Simply removing the relevant line from GroovyBootstrapMainStarter seems to be sufficient to get it to work again, although I do not know whether this is bound to cause any issues.

groovy-wrapper/src/main/java/org/gradle/wrapper/GroovyBootstrapMainStarter.java

Line 31 in e9ee667

urls.add(findJars("junit", gradleHome, "lib").get(0));