RE: Groovy Java 21 Exception

Hello,

Our company has legacy Java builds using Apache Ant 1.10.9 and Groovy 3.0.11 via the Groovy Ant Task<https://docs.groovy-lang.org/latest/html/documentation/groovy-ant-task.html>. In the past 4 years, we've been updating the versions of Java used by these builds to fix security issues with third party libraries. First, Java 11, then Java 17, and now Java 21. With Java 21, I'm getting the exception below. Do I need to upgrade the Groovy version?  Is Java 21 supported by Groovy?

Thanks in advance,
Jim

==== Exception ====
...
[au:antunit] BUILD FAILED
[au:antunit] /c/bb02na2a/vol/sasusr/u/japoli/IFABS/SAS9-12418/work/ifabs/build/ifabs/21.0/staging/ant/common/common.xml:487: BUG! exception in phase 'semantic analysis' in source unit 'embedded_script_in__c_bb02na2a_vol_sasusr_u_japoli_IFABS_SAS9_12418_work_ifabs_build_ifabs_21_dot_0_staging_ant_common_common_dot_xml' Unsupported class file major version 65
[au:antunit]     at org.codehaus.groovy.control.CompilationUnit$ISourceUnitOperation.doPhaseOperation(CompilationUnit.java:905)
[au:antunit]     at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:627)
[au:antunit]     at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:389)
[au:antunit]     at groovy.lang.GroovyClassLoader.lambda$parseClass$3(GroovyClassLoader.java:332)
[au:antunit]     at org.codehaus.groovy.runtime.memoize.StampedCommonCache.compute(StampedCommonCache.java:163)
[au:antunit]     at org.codehaus.groovy.runtime.memoize.StampedCommonCache.getAndPut(StampedCommonCache.java:154)
[au:antunit]     at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:330)
[au:antunit]     at groovy.lang.GroovyShell.parseClass(GroovyShell.java:526)
[au:antunit]     at groovy.lang.GroovyShell.parse(GroovyShell.java:538)
[au:antunit]     at groovy.lang.GroovyShell.parse(GroovyShell.java:570)
[au:antunit]     at org.codehaus.groovy.ant.Groovy.parseAndRunScript(Groovy.java:600)
[au:antunit]     at org.codehaus.groovy.ant.Groovy.execGroovy(Groovy.java:559)
[au:antunit]     at org.codehaus.groovy.ant.Groovy.execute(Groovy.java:419)
[au:antunit]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
[au:antunit]     at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
[au:antunit]     at java.base/java.lang.reflect.Method.invoke(Method.java:580)
[au:antunit]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
[au:antunit]     at org.apache.tools.ant.Task.perform(Task.java:350)
[au:antunit]     at org.apache.tools.ant.Target.execute(Target.java:449)
[au:antunit]     at org.apache.tools.ant.Target.performTasks(Target.java:470)
[au:antunit]     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1401)
[au:antunit]     at org.apache.tools.ant.Project.executeTarget(Project.java:1374)
[au:antunit]     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[au:antunit]     at org.apache.tools.ant.Project.executeTargets(Project.java:1264)
[au:antunit]     at org.apache.tools.ant.Main.runBuild(Main.java:827)
[au:antunit]     at org.apache.tools.ant.Main.startAnt(Main.java:223)
[au:antunit]     at org.apache.tools.ant.launch.Launcher.run(Launcher.java:284)
[au:antunit]     at org.apache.tools.ant.launch.Launcher.main(Launcher.java:101)
[au:antunit] Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 65
[au:antunit]     at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:199)
[au:antunit]     at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:180)
[au:antunit]     at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:166)
[au:antunit]     at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:287)
[au:antunit]     at org.codehaus.groovy.ast.decompiled.AsmDecompiler.parseClass(AsmDecompiler.java:81)
[au:antunit]     at org.codehaus.groovy.control.ClassNodeResolver.findDecompiled(ClassNodeResolver.java:251)
[au:antunit]     at org.codehaus.groovy.control.ClassNodeResolver.tryAsLoaderClassOrScript(ClassNodeResolver.java:189)
[au:antunit]     at org.codehaus.groovy.control.ClassNodeResolver.findClassNode(ClassNodeResolver.java:169)
[au:antunit]     at org.codehaus.groovy.control.ClassNodeResolver.resolveName(ClassNodeResolver.java:125)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.resolveToOuter(ResolveVisitor.java:869)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.resolve(ResolveVisitor.java:506)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.resolveFromDefaultImports(ResolveVisitor.java:661)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.resolveFromDefaultImports(ResolveVisitor.java:625)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.resolve(ResolveVisitor.java:505)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.resolve(ResolveVisitor.java:468)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.resolveOrFail(ResolveVisitor.java:338)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.resolveOrFail(ResolveVisitor.java:330)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.resolveOrFail(ResolveVisitor.java:326)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.transformConstructorCallExpression(ResolveVisitor.java:1236)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.transform(ResolveVisitor.java:900)
[au:antunit]     at org.codehaus.groovy.ast.expr.Expression.transformExpressions(Expression.java:49)
[au:antunit]     at org.codehaus.groovy.ast.expr.ArgumentListExpression.transformExpression(ArgumentListExpression.java:66)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.transform(ResolveVisitor.java:905)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.transformMethodCallExpression(ResolveVisitor.java:1272)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.transform(ResolveVisitor.java:896)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.transformDeclarationExpression(ResolveVisitor.java:1298)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.transform(ResolveVisitor.java:892)
[au:antunit]     at org.codehaus.groovy.ast.ClassCodeExpressionTransformer.visitExpressionStatement(ClassCodeExpressionTransformer.java:108)
[au:antunit]     at org.codehaus.groovy.ast.stmt.ExpressionStatement.visit(ExpressionStatement.java:40)
[au:antunit]     at org.codehaus.groovy.ast.CodeVisitorSupport.visitBlockStatement(CodeVisitorSupport.java:86)
[au:antunit]     at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitBlockStatement(ClassCodeVisitorSupport.java:164)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.visitBlockStatement(ResolveVisitor.java:1566)
[au:antunit]     at org.codehaus.groovy.ast.stmt.BlockStatement.visit(BlockStatement.java:69)
[au:antunit]     at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClassCodeContainer(ClassCodeVisitorSupport.java:138)
[au:antunit]     at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructorOrMethod(ClassCodeVisitorSupport.java:111)
[au:antunit]     at org.codehaus.groovy.ast.ClassCodeExpressionTransformer.visitConstructorOrMethod(ClassCodeExpressionTransformer.java:66)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.visitConstructorOrMethod(ResolveVisitor.java:294)
[au:antunit]     at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:106)
[au:antunit]     at org.codehaus.groovy.ast.ClassNode.visitMethods(ClassNode.java:1100)
[au:antunit]     at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1093)
[au:antunit]     at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:52)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.visitClass(ResolveVisitor.java:1483)
[au:antunit]     at org.codehaus.groovy.control.ResolveVisitor.startResolving(ResolveVisitor.java:262)
[au:antunit]     at org.codehaus.groovy.control.CompilationUnit.lambda$new$16(CompilationUnit.java:738)
[au:antunit]     at org.codehaus.groovy.control.CompilationUnit$ISourceUnitOperation.doPhaseOperation(CompilationUnit.java:901)
[au:antunit]     ... 27 more
[au:antunit]
[au:antunit] Total time: 3 seconds
[au:antunit] Java Result: 1
[au:antunit] Setting project property: ifabs-test.exit.code -> 1
[au:antunit] failing due to iFABS ANT exit status 1, process output:      [java] Java Result: 1