From Mark.Lehmacher@gmail.com on August 25, 2010 14:14:22

What steps will reproduce the problem? The following TestNG test will:

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

import org.powermock.core.classloader.annotations.PrepareForTest;
import org.testng.IObjectFactory;
import org.testng.annotations.ObjectFactory;
import org.testng.annotations.Test;

@test
public class MyTest
{

public final void testBla() throws Exception
{
final Cipher c = Cipher.getInstance( "AES/CBC/PKCS5Padding" );

  final SecretKey skey = new SecretKeySpec( new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15} , "AES" ); 
  final IvParameterSpec iv = new IvParameterSpec( new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15} );

  c.init( Cipher.ENCRYPT_MODE, skey, iv );

}

@objectfactory
public final IObjectFactory getObjectFactory()
{
return new org.powermock.modules.testng.PowerMockObjectFactory();
}

}

When running the test I get the following exception:

java.lang.ClassCastException: com.sun.crypto.provider.AESCipher cannot be cast to javax.crypto.CipherSpi
at javax.crypto.Cipher.a(DashoA13_..)
at javax.crypto.Cipher.init(DashoA13_..)
at javax.crypto.Cipher.init(DashoA13*..)
at mypackage.MyTest.testBla(MyTest.java:48)
... Removed 22 stack frames

When I leave out getObjectFactory() everything works.

As as sidenote, when getObjectFactory() is there and the test class itself is final (in my case MyTest), another exception ensues:

org.testng.TestNGException:
An error occurred while instantiating class com.aixigo.java.common.technology.core.anonymization.standard.MyTest: com.aixigo.java.common.technology.core.anonymization.standard.MyTest is final
at org.testng.internal.ClassHelper.createInstance(ClassHelper.java:329)
at org.testng.internal.ClassImpl.getDefaultInstance(ClassImpl.java:71)
at org.testng.internal.ClassImpl.getInstances(ClassImpl.java:90)
at org.testng.internal.TestNGClassFinder.(TestNGClassFinder.java:119)
at org.testng.TestRunner.initMethods(TestRunner.java:305)
at org.testng.TestRunner.init(TestRunner.java:251)
at org.testng.TestRunner.init(TestRunner.java:221)
at org.testng.TestRunner.(TestRunner.java:183)
at org.testng.remote.RemoteTestNG$1.newTestRunner(RemoteTestNG.java:105)
at org.testng.remote.RemoteTestNG$DelegatingTestRunnerFactory.newTestRunner(RemoteTestNG.java:158)
at org.testng.SuiteRunner$ProxyTestRunnerFactory.newTestRunner(SuiteRunner.java:551)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:195)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:903)
at org.testng.TestNG.runSuitesLocally(TestNG.java:872)
at org.testng.TestNG.run(TestNG.java:780)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:75)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:127)
Caused by: java.lang.RuntimeException: com.aixigo.java.common.technology.core.anonymization.standard.MyTest is final
at javassist.util.proxy.ProxyFactory.checkClassAndSuperName(ProxyFactory.java:748)
at javassist.util.proxy.ProxyFactory.makeSortedMethodList(ProxyFactory.java:772)
at javassist.util.proxy.ProxyFactory.computeSignature(ProxyFactory.java:781)
at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:392)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.powermock.reflect.internal.WhiteboxImpl.performMethodInvocation(WhiteboxImpl.java:2015)
at org.powermock.reflect.internal.WhiteboxImpl.doInvokeMethod(WhiteboxImpl.java:893)
at org.powermock.reflect.internal.WhiteboxImpl.invokeMethod(WhiteboxImpl.java:721)
at org.powermock.reflect.Whitebox.invokeMethod(Whitebox.java:399)
at org.powermock.modules.testng.PowerMockObjectFactory.createTestClass(PowerMockObjectFactory.java:118)
at org.powermock.modules.testng.PowerMockObjectFactory.newInstance(PowerMockObjectFactory.java:79)
at org.testng.internal.ClassHelper.createInstance(ClassHelper.java:317)
... 17 more

Again, without getObjectFactory() everything works. This issue contains a stripped down version of my real test, so leaving out the object factory is not really an option.

I am using:

powermock-mockito 1.4
(javassist-3.13.0.GA.jar, objenesis-1.2.jar)

TestNG 5.12

The problem arises within Eclipse (using TestNG plugin) as well as from executing tests from command line (vanilla TestNG).

Original issue: http://code.google.com/p/powermock/issues/detail?id=274