[rules-users] Internal type used together with function throws ClassCastException

Hi, Internal type together with a function in one drl file cause ClassCastException when setting properties of a new instance of this type. java.lang.ClassCastException: org.drools.generatedbeans.Cheese cannot be cast to org.drools.generatedbeans.Cheese at org.drools.base.org.drools.generatedbeans.Cheese6778431$setType.setValue(Unknown Source) at org.drools.base.ClassFieldWriter.setValue(ClassFieldWriter.java:195) at org.drools.base.ClassFieldAccessor.setValue(ClassFieldAccessor.java:319) at org.drools.factmodel.ClassDefinition.set(ClassDefinition.java:207) at org.drools.integrationtests.MiscTest.testGeneratedBeansWithFunction(MiscTest.java:1072) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196) Test case to reproduce: test_GeneratedBeansWithFunction.drl: ------------------------------- package org.drools.generatedbeans; function void someFunction(String arg) { System.out.println("hello"); } declare Cheese type: String end ------------------------------- test method: public void testGeneratedBeansWithFunction() throws Exception { final KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add( ResourceFactory.newInputStreamResource( getClass().getResourceAsStream( "test_GeneratedBeansWithFunction.drl" ) ), ResourceType.DRL ); assertFalse( kbuilder.getErrors().toString(), kbuilder.hasErrors() ); KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(); kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() ); // Retrieve the generated fact type FactType cheeseFact = kbase.getFactType( "org.drools.generatedbeans", "Cheese" ); // Create a new Fact instance Object cheese = cheeseFact.newInstance(); cheeseFact.set( cheese, "type", "stilton" ); } The last line throws the ClassCastException. If we remove the function from the drl file all works fine. Best Regards, Michal