Failed to transform class with name ... Reason: [source error] incompatible type for = --------------------------------------------------------------------------------------- Key: JASSIST-223 URL: https://issues.jboss.org/browse/JASSIST-223 Project: Javassist Issue Type: Bug Affects Versions: 3.18.1-GA Environment: Powermock 1.5.4 and Easymock 3.2 Reporter: TeeWe Tee Assignee: Shigeru Chiba Fix For: 3.19.0-GA Attachments: PowerMock.zip, SigPadApi.class, Tester.java During the usage of powermock and the mocking of a class the exception below occurs. Since this is a javaassist issue I write it here. Any hints about the problem? Any help will be appreciated. java.lang.IllegalStateException: Failed to transform class with name com.company.someClass. Reason: [source error] incompatible type for = at org.powermock.core.classloader.MockClassLoader.loadMockClass(MockClassLoader.java:214) at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(MockClassLoader.java:144) at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:67) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:249) at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:95) at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:107) at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:31) at sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:370) at sun.reflect.annotation.AnnotationParser.parseClassValue(AnnotationParser.java:351) at sun.reflect.annotation.AnnotationParser.parseClassArray(AnnotationParser.java:653) at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:460) at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:286) at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:222) at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:69) at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:52) at java.lang.Class.initAnnotationsIfNecessary(Class.java:3127) at java.lang.Class.getAnnotation(Class.java:3086) at org.junit.internal.MethodSorter.getDeclaredMethods(MethodSorter.java:52) at org.junit.internal.runners.TestClass.getAnnotatedMethods(TestClass.java:45) at org.junit.internal.runners.MethodValidator.validateTestMethods(MethodValidator.java:71) at org.junit.internal.runners.MethodValidator.validateStaticMethods(MethodValidator.java:44) at org.junit.internal.runners.MethodValidator.validateMethodsForDefaultRunner(MethodValidator.java:50) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.validate(PowerMockJUnit44RunnerDelegateImpl.java:108) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.<init>(PowerMockJUnit44RunnerDelegateImpl.java:70) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl.<init>(PowerMockJUnit47RunnerDelegateImpl.java:42) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit49RunnerDelegateImpl.<init>(PowerMockJUnit49RunnerDelegateImpl.java:25) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.createDelegatorFromClassloader(JUnit4TestSuiteChunkerImpl.java:149) at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.createDelegatorFromClassloader(JUnit4TestSuiteChunkerImpl.java:39) at org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl.createTestDelegators(AbstractTestSuiteChunkerImpl.java:217) at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.<init>(JUnit4TestSuiteChunkerImpl.java:59) at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.<init>(AbstractCommonPowerMockRunner.java:32) at org.powermock.modules.junit4.PowerMockRunner.<init>(PowerMockRunner.java:33) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:29) at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:21) at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59) at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26) at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59) at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:26) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.<init>(JUnit4TestReference.java:33) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestClassReference.<init>(JUnit4TestClassReference.java:25) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:48) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:452) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: javassist.CannotCompileException: [source error] incompatible type for = at javassist.expr.FieldAccess.replace(FieldAccess.java:216) at org.powermock.core.transformers.impl.MainMockTransformer$PowerMockExpressionEditor.edit(MainMockTransformer.java:274) at javassist.expr.ExprEditor.loopBody(ExprEditor.java:198) at javassist.expr.ExprEditor.doit(ExprEditor.java:91) at javassist.CtClassType.instrument(CtClassType.java:1398) at org.powermock.core.transformers.impl.MainMockTransformer.transform(MainMockTransformer.java:74) at org.powermock.core.classloader.MockClassLoader.loadMockClass(MockClassLoader.java:210) ... 55 more Caused by: compile error: incompatible type for = at javassist.compiler.CodeGen.badAssign(CodeGen.java:770) at javassist.compiler.CodeGen.atAssignCore(CodeGen.java:863) at javassist.compiler.CodeGen.atVariableAssign(CodeGen.java:793) at javassist.compiler.CodeGen.atAssignExpr(CodeGen.java:747) at javassist.compiler.CodeGen.atStmnt(CodeGen.java:332) at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50) at javassist.compiler.CodeGen.atStmnt(CodeGen.java:351) at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50) at javassist.compiler.CodeGen.atIfStmnt(CodeGen.java:405) at javassist.compiler.CodeGen.atStmnt(CodeGen.java:355) at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50) at javassist.compiler.CodeGen.atStmnt(CodeGen.java:351) at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50) at javassist.compiler.Javac.compileStmnt(Javac.java:569) at javassist.expr.FieldAccess.replace(FieldAccess.java:210) ... 61 more