[jruby] fails to start due lookup issue with handles

Reproducable with an embedded use-case, simply booting JRuby (e.g. in Gradle) and trying to run some RubyGems code.

**Cause seems to be same as with https://github.com/jruby/jruby-rack/issues/268**

```
> (LoadError) load error: stringio -- java.lang.ExceptionInInitializerError: null

* Try:
> Run with --info or --debug option to get more log output.
> Get more help at https://help.gradle.org.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':installAllGems'.
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.lambda$executeIfValid$1(ExecuteActionsTaskExecuter.java:130)
        at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:293)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:128)
        ...
        at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
Caused by: org.jruby.embed.EvalFailedException: (LoadError) load error: stringio -- java.lang.ExceptionInInitializerError: null
        at org.jruby.embed.internal.EmbedEvalUnitImpl.run(EmbedEvalUnitImpl.java:135)
        at org.jruby.embed.ScriptingContainer.runUnit(ScriptingContainer.java:1296)
        at org.jruby.embed.ScriptingContainer.runScriptlet(ScriptingContainer.java:1289)
        ...
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
        at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
Caused by: org.jruby.exceptions.LoadError: (LoadError) load error: stringio -- java.lang.ExceptionInInitializerError: null
        at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1187)
        at org.jruby.ext.jruby.JRubyUtilLibrary.load_ext(org/jruby/ext/jruby/JRubyUtilLibrary.java:219)
        at RUBY.<main>(uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/zlib.rb:2)
        at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1187)
        at RUBY.require(uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:136)
        at RUBY.initialize(uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/package.rb:196)
        at org.jruby.RubyClass.new(org/jruby/RubyClass.java:951)
        at RUBY.new(uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/package.rb:161)
        at RUBY.at(uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/installer.rb:107)
        at RUBY.<main>(<script>:3)
Caused by: java.lang.ExceptionInInitializerError
        at org.jruby.ext.stringio.StringIO.<clinit>(StringIO.java:1543)
        at org.jruby.ext.stringio.StringIOLibrary.load(StringIOLibrary.java:38)
        at org.jruby.ext.jruby.JRubyUtilLibrary.loadExtension(JRubyUtilLibrary.java:242)
        at org.jruby.ext.jruby.JRubyUtilLibrary.load_ext(JRubyUtilLibrary.java:219)
        at org.jruby.ext.jruby.JRubyUtilLibrary$INVOKER$s$1$0$load_ext.call(JRubyUtilLibrary$INVOKER$s$1$0$load_ext.gen)
        at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:466)
        at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:244)
        at org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:314)
        at org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:66)
        at org.jruby.ir.interpreter.Interpreter.INTERPRET_ROOT(Interpreter.java:98)
        at org.jruby.ir.interpreter.Interpreter.execute(Interpreter.java:83)
        at org.jruby.ir.interpreter.Interpreter.execute(Interpreter.java:32)
        at org.jruby.ir.IRTranslator.execute(IRTranslator.java:41)
        at org.jruby.Ruby.runInterpreter(Ruby.java:1269)
        at org.jruby.Ruby.loadFile(Ruby.java:3060)
        at org.jruby.runtime.load.LibrarySearcher$ResourceLibrary.load(LibrarySearcher.java:931)
        at org.jruby.runtime.load.LibrarySearcher$FoundLibrary.load(LibrarySearcher.java:889)
        at org.jruby.runtime.load.LoadService.tryLoadingLibraryOrScript(LoadService.java:674)
        at org.jruby.runtime.load.LoadService.lambda$smartLoadInternal$0(LoadService.java:576)
        at org.jruby.runtime.load.LoadService$RequireLocks.executeAndClearLock(LoadService.java:517)
        at org.jruby.runtime.load.LoadService$RequireLocks.lock(LoadService.java:481)
        at org.jruby.runtime.load.LoadService$RequireLocks.access$300(LoadService.java:436)
        at org.jruby.runtime.load.LoadService.smartLoadInternal(LoadService.java:562)
        at org.jruby.runtime.load.LoadService.require(LoadService.java:423)
        at org.jruby.RubyKernel.requireCommon(RubyKernel.java:1194)
        at org.jruby.RubyKernel.require(RubyKernel.java:1187)
        at org.jruby.RubyKernel$INVOKER$s$1$0$require.call(RubyKernel$INVOKER$s$1$0$require.gen)
        at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodOneOrNBlock.call(JavaMethod.java:423)
        at org.jruby.RubyClass.finvoke(RubyClass.java:822)
        at org.jruby.runtime.Helpers.invoke(Helpers.java:711)
        at org.jruby.RubyBasicObject.callMethod(RubyBasicObject.java:358)
        at org.jruby.ext.zlib.RubyZlib.createZlibModule(RubyZlib.java:159)
        at org.jruby.ext.zlib.ZlibLibrary.load(ZlibLibrary.java:36)
        at org.jruby.ext.jruby.JRubyUtilLibrary.loadExtension(JRubyUtilLibrary.java:242)
        at org.jruby.ext.jruby.JRubyUtilLibrary.load_ext(JRubyUtilLibrary.java:219)
        at org.jruby.ext.jruby.JRubyUtilLibrary$INVOKER$s$1$0$load_ext.call(JRubyUtilLibrary$INVOKER$s$1$0$load_ext.gen)
        at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:466)
        at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:244)
        at org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:314)
        at org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:66)
        at org.jruby.ir.interpreter.Interpreter.INTERPRET_ROOT(Interpreter.java:98)
        at org.jruby.ir.interpreter.Interpreter.execute(Interpreter.java:83)
        at org.jruby.ir.interpreter.Interpreter.execute(Interpreter.java:32)
        at org.jruby.ir.IRTranslator.execute(IRTranslator.java:41)
        at org.jruby.Ruby.runInterpreter(Ruby.java:1269)
        at org.jruby.Ruby.loadFile(Ruby.java:3060)
        at org.jruby.runtime.load.LibrarySearcher$ResourceLibrary.load(LibrarySearcher.java:931)
        at org.jruby.runtime.load.LibrarySearcher$FoundLibrary.load(LibrarySearcher.java:889)
        at org.jruby.runtime.load.LoadService.tryLoadingLibraryOrScript(LoadService.java:674)
        at org.jruby.runtime.load.LoadService.lambda$smartLoadInternal$0(LoadService.java:576)
        at org.jruby.runtime.load.LoadService$RequireLocks.executeAndClearLock(LoadService.java:517)
        at org.jruby.runtime.load.LoadService$RequireLocks.lock(LoadService.java:481)
        at org.jruby.runtime.load.LoadService$RequireLocks.access$300(LoadService.java:436)
        at org.jruby.runtime.load.LoadService.smartLoadInternal(LoadService.java:562)
        at org.jruby.runtime.load.LoadService.require(LoadService.java:423)
        at org.jruby.RubyKernel.requireCommon(RubyKernel.java:1194)
        at org.jruby.RubyKernel.require(RubyKernel.java:1187)
        at org.jruby.RubyKernel$INVOKER$s$1$0$require.call(RubyKernel$INVOKER$s$1$0$require.gen)
        at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodOneOrNBlock.call(JavaMethod.java:423)
        at org.jruby.internal.runtime.methods.AliasMethod.call(AliasMethod.java:106)
        at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:466)
        at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:244)
        at org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:314)
        at org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:66)
        at org.jruby.ir.interpreter.InterpreterEngine.interpret(InterpreterEngine.java:82)
        at org.jruby.internal.runtime.methods.MixedModeIRMethod.INTERPRET_METHOD(MixedModeIRMethod.java:201)
        at org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:188)
        at org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:220)
        at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:466)
        at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:244)
        at org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:314)
        at org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:66)
        at org.jruby.internal.runtime.methods.MixedModeIRMethod.INTERPRET_METHOD(MixedModeIRMethod.java:128)
        at org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:115)
        at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:446)
        at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:92)
        at org.jruby.RubyClass.newInstance(RubyClass.java:951)
        at org.jruby.RubyClass$INVOKER$i$newInstance.call(RubyClass$INVOKER$i$newInstance.gen)
        at org.jruby.ir.runtime.IRRuntimeHelpers.unresolvedSuper(IRRuntimeHelpers.java:1488)
        at org.jruby.ir.instructions.ClassSuperInstr.interpret(ClassSuperInstr.java:105)
        at org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:363)
        at org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:66)
        at org.jruby.ir.interpreter.InterpreterEngine.interpret(InterpreterEngine.java:88)
        at org.jruby.internal.runtime.methods.MixedModeIRMethod.INTERPRET_METHOD(MixedModeIRMethod.java:238)
        at org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:225)
        at org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:228)
        at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:476)
        at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:293)
        at org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:324)
        at org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:66)
        at org.jruby.ir.interpreter.InterpreterEngine.interpret(InterpreterEngine.java:88)
        at org.jruby.internal.runtime.methods.MixedModeIRMethod.INTERPRET_METHOD(MixedModeIRMethod.java:238)
        at org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:225)
        at org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:228)
        at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:476)
        at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:293)
        at org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:324)
        at org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:66)
        at org.jruby.ir.interpreter.Interpreter.INTERPRET_ROOT(Interpreter.java:98)
        at org.jruby.ir.interpreter.Interpreter.execute(Interpreter.java:83)
        at org.jruby.ir.interpreter.Interpreter.execute(Interpreter.java:32)
        at org.jruby.ir.IRTranslator.execute(IRTranslator.java:41)
        at org.jruby.Ruby.runInterpreter(Ruby.java:1269)
        at org.jruby.Ruby.runInterpreter(Ruby.java:1299)
        at org.jruby.embed.internal.EmbedEvalUnitImpl.run(EmbedEvalUnitImpl.java:120)
        at org.jruby.embed.ScriptingContainer.runUnit(ScriptingContainer.java:1296)
        at org.jruby.embed.ScriptingContainer.runScriptlet(ScriptingContainer.java:1289)
        at fi.relex.gradle.tasks.InstallAllGemsTask.install(InstallAllGemsTask.kt:60)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:125)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:58)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:51)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:29)
        at org.gradle.api.internal.tasks.execution.TaskExecution$3.run(TaskExecution.java:244)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
        ...
        at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
Caused by: java.lang.IllegalAccessException: no such method: org.jruby.RubyString.cat19(RubyString)RubyString/invokeVirtual
        at org.jruby.ext.stringio.StringIO.<clinit>(StringIO.java:1539)
        ... 262 more
Caused by: java.lang.LinkageError: loader constraint violation: when resolving method 'org.jruby.RubyString org.jruby.RubyString.cat19(org.jruby.RubyString)' the class loader 'bootstrap' of the current class, java/lang/Object, and the class loader org.gradle.internal.classloader.VisitableURLClassLoader$InstrumentingVisitableURLClassLoader @2f3f854c for the method's defining class, org/jruby/RubyString, have different Class objects for the type org/jruby/RubyString used in the signature (java.lang.Object is in module java.base of loader 'bootstrap'; org.jruby.RubyString is in unnamed module of loader org.gradle.internal.classloader.VisitableURLClassLoader$InstrumentingVisitableURLClassLoader @2f3f854c, parent loader org.gradle.internal.classloader.VisitableURLClassLoader$InstrumentingVisitableURLClassLoader @735d1ef5)
        ... 263 more
```

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[jruby] fails to start due lookup issue with handles #112

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[jruby] fails to start due lookup issue with handles #112

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