[jira] Assigned: (JMOCK-225) Imposteriser produces ClassCastException when JUnit tests are run with Ant.

> Imposteriser produces ClassCastException when JUnit tests are run with Ant.
> ---------------------------------------------------------------------------
>
>                 Key: JMOCK-225
>                 URL: http://jira.codehaus.org/browse/JMOCK-225
>             Project: jMock
>          Issue Type: Bug
>          Components: JMock 2.x.x Library
>    Affects Versions: 2.5.1, 2.6.0
>         Environment: MacOS X 10.5, Ant via Eclipse
>            Reporter: Richard Rothwell
>            Assignee: Nat Pryce
>
> I am mocking Concrete classes using the standard Imposteriser.INSTANCE.
> The tests run fine under the Eclipse IDE.
> However when the same tests are run using the Ant JUnit task they fail with a ClassCastException.
> The condition required to reproduce this bug is to mock a concrete class (or its subclass) more than
> once over several test classes. Typically the first use of the Mock class succeeds, but subsequent
> Test classes using the same mocked concrete class fail. Commenting out the first usage
> will allow the second usage (which failed) to succeed.
> Debugging into the code seems to show CGLIBed instances of the expected class.
> The failure is in:
>     public <T> T imposterise(final Invokable mockObject, Class<T> mockedType, Class<?>... ancilliaryTypes) {        if (!mockedType.isInterface() && toStringMethodIsFinal(mockedType)) {            throw new IllegalArgumentException(mockedType.getName() + " has a final toString method");        }                try {            setConstructorsAccessible(mockedType, true);            Class<?> proxyClass = createProxyClass(mockedType, ancilliaryTypes);            return mockedType.cast(createProxy(proxyClass, mockObject));        }        finally {            setConstructorsAccessible(mockedType, false);        }    }
> On this line:
>             return mockedType.cast(createProxy(proxyClass, mockObject));
> I have converted my own classes to use interfaces and removed imposteriser (using just interfaces with the imposteriser also fails).
> However I am now stuck because I am also mocking 3rd part classes.
> Any workarounds appreciated.
> P.S. I have upgraded from 2.5.1 to 2.6.o without improvement.
> P.P.S. I think this is running in the Ant JVM -- connected via remote socket debug.