Groovy 5 compatibility

[matrei]

This is the start of checking compatibility with Groovy 5 and eventually adding a CI workflow for Groovy 5.0.0-SNAPSHOT.

[jdaugherty]

I have been experimenting with a local snapshot of Spock fixed with Eric's suggestions here: spockframework/spock#2160 (reply in thread)

One of the issues I found was:

1: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':grails-datastore-core:compileGroovy'.
> Unrecoverable compilation error: startup failed:
  General error during conversion: The interface Collection cannot be implemented more than once with different arguments: java.util.Collection<java.lang.Object> and java.util.Collection
  . At [30:1] 
  
  org.codehaus.groovy.syntax.RuntimeParserException: The interface Collection cannot be implemented more than once with different arguments: java.util.Collection<java.lang.Object> and java.util.Collection
  . At [30:1] 
        at org.codehaus.groovy.classgen.Verifier.checkForDuplicateInterfaces(Verifier.java:409)
        at org.codehaus.groovy.classgen.Verifier.visitClass(Verifier.java:235)
        at org.codehaus.groovy.tools.javac.JavaStubGenerator$1.visitClass(JavaStubGenerator.java:236)
        at org.codehaus.groovy.tools.javac.JavaStubGenerator.printClassContents(JavaStubGenerator.java:331)
        at org.codehaus.groovy.tools.javac.JavaStubGenerator.generateStubContent(JavaStubGenerator.java:204)
        at org.codehaus.groovy.tools.javac.JavaStubGenerator.generateFileStub(JavaStubGenerator.java:181)
        at org.codehaus.groovy.tools.javac.JavaStubGenerator.generateClass(JavaStubGenerator.java:161)
        at org.codehaus.groovy.tools.javac.JavaAwareCompilationUnit.lambda$new$2(JavaAwareCompilationUnit.java:111)
        at org.codehaus.groovy.control.CompilationUnit$IPrimaryClassNodeOperation.doPhaseOperation(CompilationUnit.java:920)
        at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:666)
        at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:640)
        at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:621)
        at org.gradle.api.internal.tasks.compile.ApiGroovyCompiler.execute(ApiGroovyCompiler.java:285)
        at org.gradle.api.internal.tasks.compile.ApiGroovyCompiler.execute(ApiGroovyCompiler.java:67)
        at org.gradle.api.internal.tasks.compile.GroovyCompilerFactory$DaemonSideCompiler.execute(GroovyCompilerFactory.java:115)
        at org.gradle.api.internal.tasks.compile.GroovyCompilerFactory$DaemonSideCompiler.execute(GroovyCompilerFactory.java:99)
        at org.gradle.api.internal.tasks.compile.daemon.AbstractIsolatedCompilerWorkerExecutor$CompilerWorkAction.execute(AbstractIsolatedCompilerWorkerExecutor.java:78)
        at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:63)
        at org.gradle.workers.internal.AbstractClassLoaderWorker$1.create(AbstractClassLoaderWorker.java:54)
        at org.gradle.workers.internal.AbstractClassLoaderWorker$1.create(AbstractClassLoaderWorker.java:48)
        at org.gradle.internal.classloader.ClassLoaderUtils.executeInClassloader(ClassLoaderUtils.java:100)
        at org.gradle.workers.internal.AbstractClassLoaderWorker.executeInClassLoader(AbstractClassLoaderWorker.java:48)
        at org.gradle.workers.internal.IsolatedClassloaderWorker.run(IsolatedClassloaderWorker.java:49)
        at org.gradle.workers.internal.IsolatedClassloaderWorker.run(IsolatedClassloaderWorker.java:30)
        at org.gradle.workers.internal.WorkerDaemonServer.run(WorkerDaemonServer.java:108)
        at org.gradle.workers.internal.WorkerDaemonServer.run(WorkerDaemonServer.java:77)
        at org.gradle.process.internal.worker.request.WorkerAction.lambda$run$1(WorkerAction.java:150)
        at org.gradle.process.internal.worker.child.WorkerLogEventListener.withWorkerLoggingProtocol(WorkerLogEventListener.java:41)
        at org.gradle.process.internal.worker.request.WorkerAction.lambda$run$2(WorkerAction.java:150)
        at org.gradle.internal.operations.CurrentBuildOperationRef.with(CurrentBuildOperationRef.java:85)
        at org.gradle.process.internal.worker.request.WorkerAction.run(WorkerAction.java:142)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:569)
        at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
        at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:182)
        at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:164)
        at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:414)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
        at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)
  
  1 error

==============================================================================

[matrei]

@jdaugherty Yes, I have created a ticket for that here: https://issues.apache.org/jira/browse/GROOVY-11736