java.lang.RuntimeException: wrong class format
	at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:288)
	at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:228)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:102)
	at org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding.resolve(UnresolvedReferenceBinding.java:49)
	at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveType(BinaryTypeBinding.java:122)
	at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveTypesFor(BinaryTypeBinding.java:1023)
	at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.getMethods(BinaryTypeBinding.java:894)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1210)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1181)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2237)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:401)
	at org.eclipse.jdt.internal.compiler.ast.Expression.resolve(Expression.java:913)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:447)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:189)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:406)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1131)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1219)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:528)
	at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:759)
	at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:464)
	at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaCompiler.java:418)
	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.jbpm.compiler.ProcessBuilderImpl.buildProcess(ProcessBuilderImpl.java:195)
	at org.jbpm.compiler.ProcessBuilderImpl.addProcessFromXml(ProcessBuilderImpl.java:288)
	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.addProcessFromXml(KnowledgeBuilderImpl.java:711)
	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl$6.build(CompositeKnowledgeBuilderImpl.java:217)
	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildResourceType(CompositeKnowledgeBuilderImpl.java:158)
	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildResources(CompositeKnowledgeBuilderImpl.java:145)
	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:104)
	at org.drools.compiler.kie.builder.impl.AbstractKieModule.buildKnowledgePackages(AbstractKieModule.java:241)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.createKieBase(KieContainerImpl.java:477)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:440)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:597)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:568)
	at org.jboss.integration.fuse.quickstarts.jbpm.workitems.camel.Activator.start(Activator.java:47)
	at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:645)
	at org.apache.felix.framework.Felix.activateBundle(Felix.java:2154)
	at org.apache.felix.framework.Felix.startBundle(Felix.java:2072)
	at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:976)
	at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:963)
	at org.apache.karaf.features.internal.FeaturesServiceImpl.doInstallFeatures(FeaturesServiceImpl.java:546)
	at org.apache.karaf.features.internal.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:432)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException
	at org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader.<init>(ClassFileReader.java:372)
	at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler$2.createNameEnvironmentAnswer(EclipseJavaCompiler.java:312)
	at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:283)
	... 48 more