"GenericArrayTypeImpl cannot be cast to Class" when MockUp<GENERIC_AS_SUPER>

[YangZhong]

Please provide the following information:

• Version of JMockit that was used:
  1.28 1.27 1.26 1.25
  Java "1.8.0_102"
• Description of the problem or enhancement request:
  "java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.GenericArrayTypeImpl cannot be cast to java.lang.Class" when MockUp<GENERIC_AS_SUPER>.
  That's a regression because 1.24 works perfectly.

public class GENERIC_AS_SUPER extends SUPER<GENERIC>
{...}
public class TEST extends Assert
{

@BeforeClass  //  jUnit 4.12
static public void SET_UP() throws Exception
{
    new MockUp<GENERIC_AS_SUPER>()
    {
        @Mock
        void $init()
        {}
        ...
    };
}
...

}

[rliesenfeld]

I cannot reproduce the problem. How are the "SUPER" and "GENERIC" types defined?

[YangZhong]

Thanks to Rogério for trying to reproduce. A SUPER<GENERIC> example is HashMap<Object,Collection<Object>[][]>. In order to simplify regression reproducing & any fix verification, here's a simplified Test Case and could you remove "could not reproduce" tag please:

public class Regression {
  @Test  //  jUnit 4.12
  public void works1_24() {
    new MockUp<HashMap<Object,Collection<Object>[][]>>(){};
  }
}