Shading fails on Java17 with UnsupportedOperationException: PermittedSubclasses requires ASM9

[easel]

It appears as if for shading to work on Java 17 some dependencies must be updated. Definitely asm, possibly jar jar links as well. For reference, here's a full stack trace trying to shade cats.** into a spark project on Java 17:

[error] java.io.IOException: Unable to transform org/elasticsearch/hadoop/util/unit/ByteSizeUnit.class
[error]     at com.eed3si9n.jarjar.util.JarTransformer.process(JarTransformer.java:41)
[error]     at com.eed3si9n.jarjar.util.JarProcessorChain.process(JarProcessorChain.java:38)
[error]     at com.eed3si9n.jarjar.JJProcessor.process(JJProcessor.scala:108)
[error]     at com.eed3si9n.jarjarabrams.Shader$.$anonfun$bytecodeShader$6(Shader.scala:75)
[error]     at com.eed3si9n.jarjarabrams.Shader$.$anonfun$shadeDirectory$4(Shader.scala:21)
[error]     at scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:293)
[error]     at scala.collection.Iterator.foreach(Iterator.scala:943)
[error]     at scala.collection.Iterator.foreach$(Iterator.scala:943)
[error]     at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
[error]     at scala.collection.IterableLike.foreach(IterableLike.scala:74)
[error]     at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
[error]     at scala.collection.AbstractIterable.foreach(Iterable.scala:56)
[error]     at scala.collection.TraversableLike.flatMap(TraversableLike.scala:293)
[error]     at scala.collection.TraversableLike.flatMap$(TraversableLike.scala:290)
[error]     at scala.collection.AbstractTraversable.flatMap(Traversable.scala:108)
[error]     at com.eed3si9n.jarjarabrams.Shader$.shadeDirectory(Shader.scala:17)
[error]     at sbtassembly.Assembly$.$anonfun$assembleMappings$9(Assembly.scala:269)
[error]     at scala.collection.parallel.AugmentedIterableIterator.map2combiner(RemainsIterator.scala:116)
[error]     at scala.collection.parallel.AugmentedIterableIterator.map2combiner$(RemainsIterator.scala:113)
[error]     at scala.collection.parallel.immutable.ParVector$ParVectorIterator.map2combiner(ParVector.scala:66)
[error]     at scala.collection.parallel.ParIterableLike$Map.leaf(ParIterableLike.scala:1064)
[error]     at scala.collection.parallel.Task.$anonfun$tryLeaf$1(Tasks.scala:53)
[error]     at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[error]     at scala.util.control.Breaks$$anon$1.catchBreak(Breaks.scala:67)
[error]     at scala.collection.parallel.Task.tryLeaf(Tasks.scala:56)
[error]     at scala.collection.parallel.Task.tryLeaf$(Tasks.scala:50)
[error]     at scala.collection.parallel.ParIterableLike$Map.tryLeaf(ParIterableLike.scala:1061)
[error]     at scala.collection.parallel.AdaptiveWorkStealingTasks$WrappedTask.compute(Tasks.scala:153)
[error]     at scala.collection.parallel.AdaptiveWorkStealingTasks$WrappedTask.compute$(Tasks.scala:149)
[error]     at scala.collection.parallel.AdaptiveWorkStealingForkJoinTasks$WrappedTask.compute(Tasks.scala:440)
[error]     at java.base/java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:194)
[error]     at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
[error]     at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
[error]     at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
[error]     at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
[error]     at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
[error] Caused by: java.lang.UnsupportedOperationException: PermittedSubclasses requires ASM9
[error]     at org.objectweb.asm.ClassVisitor.visitPermittedSubclass(ClassVisitor.java:266)
[error]     at org.objectweb.asm.ClassVisitor.visitPermittedSubclass(ClassVisitor.java:269)
[error]     at org.objectweb.asm.commons.ClassRemapper.visitPermittedSubclass(ClassRemapper.java:228)
[error]     at org.objectweb.asm.ClassReader.accept(ClassReader.java:706)
[error]     at org.objectweb.asm.ClassReader.accept(ClassReader.java:424)
[error]     at com.eed3si9n.jarjar.util.JarTransformer.process(JarTransformer.java:39)
[error]     at com.eed3si9n.jarjar.util.JarProcessorChain.process(JarProcessorChain.java:38)
[error]     at com.eed3si9n.jarjar.JJProcessor.process(JJProcessor.scala:108)
[error]     at com.eed3si9n.jarjarabrams.Shader$.$anonfun$bytecodeShader$6(Shader.scala:75)
[error]     at com.eed3si9n.jarjarabrams.Shader$.$anonfun$shadeDirectory$4(Shader.scala:21)
[error]     at scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:293)
[error]     at scala.collection.Iterator.foreach(Iterator.scala:943)
[error]     at scala.collection.Iterator.foreach$(Iterator.scala:943)
[error]     at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
[error]     at scala.collection.IterableLike.foreach(IterableLike.scala:74)
[error]     at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
[error]     at scala.collection.AbstractIterable.foreach(Iterable.scala:56)
[error]     at scala.collection.TraversableLike.flatMap(TraversableLike.scala:293)
[error]     at scala.collection.TraversableLike.flatMap$(TraversableLike.scala:290)
[error]     at scala.collection.AbstractTraversable.flatMap(Traversable.scala:108)
[error]     at com.eed3si9n.jarjarabrams.Shader$.shadeDirectory(Shader.scala:17)
[error]     at sbtassembly.Assembly$.$anonfun$assembleMappings$9(Assembly.scala:269)
[error]     at scala.collection.parallel.AugmentedIterableIterator.map2combiner(RemainsIterator.scala:116)
[error]     at scala.collection.parallel.AugmentedIterableIterator.map2combiner$(RemainsIterator.scala:113)
[error]     at scala.collection.parallel.immutable.ParVector$ParVectorIterator.map2combiner(ParVector.scala:66)
[error]     at scala.collection.parallel.ParIterableLike$Map.leaf(ParIterableLike.scala:1064)
[error]     at scala.collection.parallel.Task.$anonfun$tryLeaf$1(Tasks.scala:53)
[error]     at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[error]     at scala.util.control.Breaks$$anon$1.catchBreak(Breaks.scala:67)
[error]     at scala.collection.parallel.Task.tryLeaf(Tasks.scala:56)
[error]     at scala.collection.parallel.Task.tryLeaf$(Tasks.scala:50)
[error]     at scala.collection.parallel.ParIterableLike$Map.tryLeaf(ParIterableLike.scala:1061)
[error]     at scala.collection.parallel.AdaptiveWorkStealingTasks$WrappedTask.compute(Tasks.scala:153)
[error]     at scala.collection.parallel.AdaptiveWorkStealingTasks$WrappedTask.compute$(Tasks.scala:149)
[error]     at scala.collection.parallel.AdaptiveWorkStealingForkJoinTasks$WrappedTask.compute(Tasks.scala:440)
[error]     at java.base/java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:194)
[error]     at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
[error]     at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
[error]     at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
[error]     at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
[error]     at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)

[MichaelBaker]

Is there a fix or workaround for this? I'm also getting this error with Java 17.

[eed3si9n]

I guess I need to bump ASM here https://github.com/eed3si9n/jarjar-abrams/blob/develop/build.sbt#L26-L27

[Kyo91]

I took a look at the changes gradle made to support Java17, and it looks like it primarily comes down to updating Opcodes.ASM7 to Opcodes.ASM9 in some or all of these locations: https://github.com/search?q=repo%3Aeed3si9n%2Fjarjar-abrams+Opcodes.ASM7&type=code

[MichaelBaker]

I confirmed locally that updating ASM and changing Opcodes.ASM7 to Opcodes.ASM9 in jarjar-abrams fixed my particular issue.

[acruise]

IIUC, I'm not sure this is fixed when viewed from the context of sbt-assembly... It's not enough for the version of jarjar to be bumped; whoever is creating ClassVisitors needs to pass Opcodes.ASM9 to the constructor.

Can I substitute a patched version of jarjar-abrams in my build? :)

[eed3si9n]

Here's GitHub Actions https://github.com/sbt/sbt-assembly/actions/runs/6649535607 demonstrating scripted tests on JDK 21.

[cdegroc]

Here's GitHub Actions https://github.com/sbt/sbt-assembly/actions/runs/6649535607 demonstrating scripted tests on JDK 21.

👋 Do you mean this proves sbt-assembly should work with Java 17+ bytecode?

Even with the latest version of sbt-assembly, I've hit this ASM9 issue due to a library using records (Java 14) and sealed classes (Java 17).

Applying the changes suggested above to jarjar-abrams and recompiling sbt-assembly locally with it solved the issue.

I've opened a PR to gather feedback.

[xuwei-k]

• https://github.com/sbt/sbt-assembly/pull/514

[MichaelBaker]

I've confirmed that version 2.1.5 fixes my problem. Thanks!