Scala compiler 2.13.4 breaks with JDK 21 after JDK-8292275

Since commit https://github.com/openjdk/jdk/commit/b3dbf28bc0614bee2f7137af95389134155c9511 our Scala integration test fails with the following error message:



```

error: scala.reflect.internal.FatalError:

  bad constant pool index: 0 at pos: 47919

     while compiling: <no file>

        during phase: globalPhase=<no phase>, enteringPhase=<some phase>

     library version: version 2.13.4

    compiler version: version 2.13.4

  reconstructed args: -bootclasspath /m2repo/org/scala-lang/scala-library/2.13.4/scala-library-2.13.4.jar -classpath /m2repo/org/scala-sbt/compiler-interface/1.3.5/compiler-interface-1.3.5.jar:/m2repo/org/jline/jline/3.16.0/jline-3.16.0.jar:/m2repo/org/scala-lang/scala-reflect/2.13.4/scala-reflect-2.13.4.jar:/m2repo/org/scala-lang/scala-compiler/2.13.4/scala-compiler-2.13.4.jar:/m2repo/com/google/protobuf/protobuf-java/3.7.0/protobuf-java-3.7.0.jar:/m2repo/org/scala-sbt/util-interface/1.3.0/util-interface-1.3.0.jar:/m2repo/net/java/dev/jna/jna/5.3.1/jna-5.3.1.jar:/m2repo/org/scala-lang/scala-compiler/2.13.4/scala-compiler-2.13.4.jar:/m2repo/org/scala-lang/scala-reflect/2.13.4/scala-reflect-2.13.4.jar:/m2repo/org/jline/jline/3.16.0/jline-3.16.0.jar:/m2repo/net/java/dev/jna/jna/5.3.1/jna-5.3.1.jar:/m2repo/org/scala-lang/scala-reflect/2.13.4/scala-reflect-2.13.4.jar -d /tmp/scala-maven-plugin-compiler-bridge-classes13526635291236778617



  last tree to typer: EmptyTree

       tree position: <unknown>

            tree tpe: <notype>

              symbol: null

           call site: <none> in <none>



== Source file context for tree position ==





	at scala.reflect.internal.Reporting.abort(Reporting.scala:69)

	at scala.reflect.internal.Reporting.abort$(Reporting.scala:65)

	at scala.reflect.internal.SymbolTable.abort(SymbolTable.scala:28)

	at scala.tools.nsc.symtab.classfile.ClassfileParser$ConstantPool.errorBadIndex(ClassfileParser.scala:407)

	at scala.tools.nsc.symtab.classfile.ClassfileParser$ConstantPool.getExternalName(ClassfileParser.scala:262)

	at scala.tools.nsc.symtab.classfile.ClassfileParser.readParamNames$1(ClassfileParser.scala:852)

	at scala.tools.nsc.symtab.classfile.ClassfileParser.parseAttribute$1(ClassfileParser.scala:858)

	at scala.tools.nsc.symtab.classfile.ClassfileParser.$anonfun$parseAttributes$6(ClassfileParser.scala:935)

	at scala.tools.nsc.symtab.classfile.ClassfileParser.parseAttributes(ClassfileParser.scala:935)

	at scala.tools.nsc.symtab.classfile.ClassfileParser.parseMethod(ClassfileParser.scala:634)

	at scala.tools.nsc.symtab.classfile.ClassfileParser.parseClass(ClassfileParser.scala:547)

	at scala.tools.nsc.symtab.classfile.ClassfileParser.$anonfun$parse$2(ClassfileParser.scala:174)

	at scala.tools.nsc.symtab.classfile.ClassfileParser.$anonfun$parse$1(ClassfileParser.scala:159)

	at scala.tools.nsc.symtab.classfile.ClassfileParser.parse(ClassfileParser.scala:142)

	at scala.tools.nsc.symtab.SymbolLoaders$ClassfileLoader.doComplete(SymbolLoaders.scala:341)

	at scala.tools.nsc.symtab.SymbolLoaders$SymbolLoader.$anonfun$complete$2(SymbolLoaders.scala:248)

	at scala.tools.nsc.symtab.SymbolLoaders$SymbolLoader.complete(SymbolLoaders.scala:246)

	at scala.reflect.internal.Symbols$Symbol.completeInfo(Symbols.scala:1559)

	at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1531)

	at scala.reflect.internal.Definitions.scala$reflect$internal$Definitions$$enterNewMethod(Definitions.scala:47)

	at scala.reflect.internal.Definitions$DefinitionsClass.String_$plus$lzycompute(Definitions.scala:1260)

	at scala.reflect.internal.Definitions$DefinitionsClass.String_$plus(Definitions.scala:1260)

	at scala.reflect.internal.Definitions$DefinitionsClass.syntheticCoreMethods$lzycompute(Definitions.scala:1581)

	at scala.reflect.internal.Definitions$DefinitionsClass.syntheticCoreMethods(Definitions.scala:1563)

	at scala.reflect.internal.Definitions$DefinitionsClass.symbolsNotPresentInBytecode$lzycompute(Definitions.scala:1594)

	at scala.reflect.internal.Definitions$DefinitionsClass.symbolsNotPresentInBytecode(Definitions.scala:1594)

	at scala.reflect.internal.Definitions$DefinitionsClass.init(Definitions.scala:1650)

	at scala.tools.nsc.Global$Run.<init>(Global.scala:1214)

	at scala.tools.nsc.Driver.doCompile(Driver.scala:47)

	at scala.tools.nsc.MainClass.doCompile(Main.scala:30)

	at scala.tools.nsc.Driver.process(Driver.scala:68)

	at scala.tools.nsc.Main.process(Main.scala)

	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)

	at java.base/java.lang.reflect.Method.invoke(Method.java:578)

	at sbt.internal.inc.RawCompiler.getReporter$1(RawCompiler.scala:56)

	at sbt.internal.inc.RawCompiler.apply(RawCompiler.scala:77)

	at sbt_inc.SbtIncrementalCompiler.getCompiledBridgeJar(SbtIncrementalCompiler.java:235)

	at sbt_inc.SbtIncrementalCompiler.<init>(SbtIncrementalCompiler.java:78)

	at scala_maven.ScalaCompilerSupport.incrementalCompile(ScalaCompilerSupport.java:282)

	at scala_maven.ScalaCompilerSupport.compile(ScalaCompilerSupport.java:110)

	at scala_maven.ScalaCompilerSupport.doExecute(ScalaCompilerSupport.java:92)

	at scala_maven.ScalaMojoSupport.execute(ScalaMojoSupport.java:557)

	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)

	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)

	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)

	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)

	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)

	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)

	at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)

	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)

	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)

	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)

	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)

	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:957)

	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:289)

	at org.apache.maven.cli.MavenCli.main(MavenCli.java:193)

	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)

	at java.base/java.lang.reflect.Method.invoke(Method.java:578)

	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)

	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)

	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)

	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)

```

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