scala-maven-plugin version 4.2.4 throws error on Windows

[tuhlmann]

I created a sample project via mvn archetype:generate from net.alchim31.maven:scala-archetype-simple version 1.7. I only changed the version number of the scala-maven-plugin to 4.2.4

Please find the sample project here: https://github.com/tuhlmann/scala-maven-plugin-error

After cloning the repo, simply issue a mvn compile to see the error.

The used jdk is Oracle Java 8.
The error thrown is

[ERROR] Failed to execute goal net.alchim31.maven:scala-maven-plugin:4.2.4:compile (default) on project example: Execution default of goal net.alchim31.maven:scala-maven-plugin:4.2.4:compile failed: An API incompatibility was encountered while executing net.alchim31.maven:scala-maven-plugin:4.2.4:compile: java.lang.ExceptionInInitializerError: null
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>net.alchim31.maven:scala-maven-plugin:4.2.4
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/C:/Users/tuhlmann/.m2/repository/net/alchim31/maven/scala-maven-plugin/4.2.4/scala-maven-plugin-4.2.4.jar
...
[ERROR] urls[68] = file:/C:/Users/tuhlmann/.m2/repository/org/scala-lang/modules/scala-java8-compat_2.12/0.9.0/scala-java8-compat_2.12-0.9.0.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]

For the full log please see https://github.com/tuhlmann/scala-maven-plugin-error/blob/master/README.md

As soon as I change the version to 4.2.0 or 3.3.2 it compiles fine.

Also, using 4.2.4 on Ubuntu 18.04 or macOS works fine, the problem only occurs on Windows, no matter if Oracke jdk or openJdk 8 is used.

Thanks for your help!

[slandelle]

Fixed, thanks for reporting!

[tuhlmann]

@slandelle Awesome, that was quick!

May I asked when this is planned to get released?

Thanks,
Torsten.

[slandelle]

ping @davidB ?

[slandelle]

@tuhlmann Could you please build from sources and validate the fix? I don't have a Windows box.

[tuhlmann]

@slandelle I built and installed 4.2.5-SNAPSHOT locally and it does work on my sample project and also the real one that caused the problem.

Thanks!

I had to skipTests for install, otherwise there's this error surfacing:

[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO] Running scala_maven.LogProcessorUtilsTest
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.037 s - in scala_maven.LogProcessorUtilsTest
[INFO] Running scala_maven.MiscTest
[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 s - in scala_maven.MiscTest
[INFO] Running scala_maven.VersionNumberTest
[INFO] Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 s - in scala_maven.VersionNumberTest
[INFO] Running util.JavaLocatorTest
[ERROR] Tests run: 5, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.006 s <<< FAILURE! - in util.JavaLocatorTest  
[ERROR] shouldReturnNullWhenJavaIsNotAvailableOnCommandLineAndJavaHomeIsPresent(util.JavaLocatorTest)  Time elapsed: 0 s
  <<< FAILURE!
org.junit.ComparisonFailure: expected:<test[/bin/]java> but was:<test[\bin\]java>
        at util.JavaLocatorTest.shouldReturnNullWhenJavaIsNotAvailableOnCommandLineAndJavaHomeIsPresent(JavaLocatorTest.
java:19)

[INFO]
[INFO] Results:
[INFO]
[ERROR] Failures: 
[ERROR]   JavaLocatorTest.shouldReturnNullWhenJavaIsNotAvailableOnCommandLineAndJavaHomeIsPresent:19 expected:<test[/bin
/]java> but was:<test[\bin\]java>
[INFO]
[ERROR] Tests run: 11, Failures: 1, Errors: 0, Skipped: 0
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE

[slandelle]

Thanks. I've pushed a commit to fix this test.

[tuhlmann]

@slandelle Thanks, mvn install works for me now.

[slandelle]

Cool, thanks for your feedback!

[anenviousguest]

@davidB could you please consider releasing this? That's a bummer to keep using a snaphost version published to the local repo😄

[davidB]

4.3.0 released, should be available in few hour on maven central's mirror.

Thank you guys

[tuhlmann]

@davidB Could you please check if the release went through? I still can't find it on https://mvnrepository.com/artifact/net.alchim31.maven/scala-maven-plugin

Thanks!

[slandelle]

@tuhlmann I can't stress this out enough: people should stop using mvnrepository!

mvnrepository index is a third party and always lags behind the official index which is https://search.maven.org.

Proof: https://search.maven.org/search?q=scala-maven-plugin

[tuhlmann]

Thanks, repo changed!