[jboss-jira] [JBoss JIRA] (DROOLS-1171) Java native compiler throws ClassCastException (so when using -Ddrools.dialect.java.compiler=NATIVE)

Java native compiler throws ClassCastException (so when using -Ddrools.dialect.java.compiler=NATIVE) ---------------------------------------------------------------------------------------------------- Key: DROOLS-1171 URL: https://issues.jboss.org/browse/DROOLS-1171 Project: Drools Issue Type: Bug Components: core engine Reporter: Geoffrey De Smet Assignee: Mario Fusco To reproduce, add this VM option: -Ddrools.dialect.java.compiler=NATIVE when running for example XStreamXmlSolverFactoryTest in optaplanner-core (but any DRL, in drools-compiler's tests should suffice already). I get this stacktrace: {code} java.lang.RuntimeException: java.lang.ClassCastException: org.drools.compiler.kie.builder.impl.MemoryKieModule$MemoryFolderURLConnection cannot be cast to java.net.JarURLConnection at com.sun.tools.javac.main.Main.compile(Main.java:559) at com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129) at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138) at org.drools.compiler.commons.jci.compilers.NativeJavaCompiler.compile(NativeJavaCompiler.java:91) at org.drools.compiler.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJavaCompiler.java:49) at org.drools.compiler.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect.java:417) at org.drools.compiler.compiler.DialectCompiletimeRegistry.compileAll(DialectCompiletimeRegistry.java:61) at org.drools.compiler.compiler.PackageRegistry.compileAll(PackageRegistry.java:138) at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.compileAll(KnowledgeBuilderImpl.java:1357) at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.compileAllRules(KnowledgeBuilderImpl.java:991) at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildRules(CompositeKnowledgeBuilderImpl.java:260) at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildPackages(CompositeKnowledgeBuilderImpl.java:121) at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:105) at org.drools.compiler.kie.builder.impl.AbstractKieModule.buildKnowledgePackages(AbstractKieModule.java:243) at org.drools.compiler.kie.builder.impl.AbstractKieProject.verify(AbstractKieProject.java:64) at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildKieProject(KieBuilderImpl.java:230) at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildAll(KieBuilderImpl.java:198) at org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildDroolsScoreDirectorFactory(ScoreDirectorFactoryConfig.java:450) at org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildScoreDirectorFactory(ScoreDirectorFactoryConfig.java:300) at org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildScoreDirectorFactory(ScoreDirectorFactoryConfig.java:231) at org.optaplanner.core.config.solver.SolverConfig.buildSolver(SolverConfig.java:216) at org.optaplanner.core.impl.solver.XStreamXmlSolverFactoryTest.configFileRemainsSameAfterReadWrite(XStreamXmlSolverFactoryTest.java:41) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:119) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) Caused by: java.lang.ClassCastException: org.drools.compiler.kie.builder.impl.MemoryKieModule$MemoryFolderURLConnection cannot be cast to java.net.JarURLConnection at org.drools.compiler.commons.jci.compilers.NativeJavaCompiler$MemoryFileManager.processJar(NativeJavaCompiler.java:358) at org.drools.compiler.commons.jci.compilers.NativeJavaCompiler$MemoryFileManager.findClassesInExternalJars(NativeJavaCompiler.java:336) at org.drools.compiler.commons.jci.compilers.NativeJavaCompiler$MemoryFileManager.list(NativeJavaCompiler.java:302) at com.sun.tools.javac.api.ClientCodeWrapper$WrappedJavaFileManager.list(ClientCodeWrapper.java:231) at com.sun.tools.javac.jvm.ClassReader.fillIn(ClassReader.java:2796) at com.sun.tools.javac.jvm.ClassReader.complete(ClassReader.java:2446) at com.sun.tools.javac.jvm.ClassReader.access$000(ClassReader.java:76) at com.sun.tools.javac.jvm.ClassReader$1.complete(ClassReader.java:240) at com.sun.tools.javac.code.Symbol.complete(Symbol.java:574) at com.sun.tools.javac.comp.Enter.visitTopLevel(Enter.java:300) at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:518) at com.sun.tools.javac.comp.Enter.classEnter(Enter.java:258) at com.sun.tools.javac.comp.Enter.classEnter(Enter.java:272) at com.sun.tools.javac.comp.Enter.complete(Enter.java:486) at com.sun.tools.javac.comp.Enter.main(Enter.java:471) at com.sun.tools.javac.main.JavaCompiler.enterTrees(JavaCompiler.java:982) at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:857) at com.sun.tools.javac.main.Main.compile(Main.java:523) ... 48 more {code} Reproduced on both JDK 8 and JDK 9.