Re: SecurityException when using ClassImposteriser

> Hi all,
>
> With both JMock 2.5.1 and 2.6RC1, I'm getting a stack trace when using
> ClassImposteriser. The stack trace is included at the end of this
> message. Any ideas as to how resolve this issue?
>
> Not sure if it's significant, but I'm running my test with Eclipse. The
> JMock JARs are bundled in an Eclipse plugin project on which my test
> plugin depends.
>
> Here's the test class:
>
> @RunWith(JMock.class)
> public class MigrationStrategyTest {
>    
>     private final MigrationContext context = new MigrationContext();
>    
>     private Mockery mockery;
>    
>     @Before
>     public void setup() {
>         mockery = new JUnit4Mockery() {{
>             setImposteriser(ClassImposteriser.INSTANCE);
>         }};
>        
>         // create mock objects
>     }
>
>     @Test
>     public void delegatesToApplicableRule() {  
>        
>         mockery.checking(new Expectations() {{
>             // set expectations
>         }});
>        
>         // execute
>         strategy.migrate(original, context);
>     }
> }
>
> Cheers,
> Louis.
>
> ----
> Louis Rose
> Research Student
> Department of Computer Science,
> University of York,
> Heslington, York, YO10 5DD, United Kingdom.
> +44 1904 434762
> Twitter: @louismrose
>
>
> java.lang.SecurityException: class "org.hamcrest.TypeSafeMatcher"'s
> signer information does not match signer information of other classes in
> the same package
>     at java.lang.ClassLoader.checkCerts(ClassLoader.java:858)
>     at java.lang.ClassLoader.preDefineClass(ClassLoader.java:570)
>     at java.lang.ClassLoader.defineClass(ClassLoader.java:697)
>     at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>     at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>     at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
>     at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>     at java.security.AccessController.doPrivileged(Native Method)
>     at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>     at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
>     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330)
>     at java.lang.ClassLoader.loadClass(ClassLoader.java:254)
>     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:402)
>     at java.lang.ClassLoader.defineClass1(Native Method)
>     at java.lang.ClassLoader.defineClass(ClassLoader.java:703)
>     at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>     at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>     at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
>     at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>     at java.security.AccessController.doPrivileged(Native Method)
>     at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>     at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
>     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330)
>     at java.lang.ClassLoader.loadClass(ClassLoader.java:254)
>     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:402)
>     at
> org.jmock.internal.InvocationExpectationBuilder.createExpectationFrom(InvocationExpectationBuilder.java:86)
>
>     at
> org.jmock.internal.InvocationToExpectationTranslator.invoke(InvocationToExpectationTranslator.java:19)
>
>     at
> org.jmock.internal.FakeObjectMethods.invoke(FakeObjectMethods.java:38)
>     at
> org.jmock.lib.legacy.ClassImposteriser$4.invoke(ClassImposteriser.java:137)
>     at
> org.eclipse.epsilon.migration.copy.Copier$$EnhancerByCGLIB$$987188f5.copy(<generated>)
>
>     at
> org.eclipse.epsilon.migration.model.MigrationStrategyTest$2.<init>(MigrationStrategyTest.java:66)
>
>     at
> org.eclipse.epsilon.migration.model.MigrationStrategyTest.delegatesToApplicableRule(MigrationStrategyTest.java:65)
>
>     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.junit.internal.runners.TestMethod.invoke(TestMethod.java:66)
>     at org.jmock.integration.junit4.JMock$1.invoke(JMock.java:37)
>     at
> org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:105)
>
>     at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:86)
>     at
> org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:94)
>
>     at
> org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:84)
>     at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49)
>     at
> org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:96)
>
>     at
> org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:59)
>
>     at
> org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:52)
>
>     at
> org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
>     at
> org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
>     at
> org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:50)
>     at
> org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
>
>     at
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
>
>     at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
>
>     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)
>
>
>
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