/**
  * @constraint 4.8.2.14
  * @title assignment incompatible references
  */
 @SuppressWarnings("cast")
 public void testVFE7() {
   // @uses dxc.junit.opcodes.areturn.jm.TSuper2
   // @uses dxc.junit.opcodes.areturn.Runner
   // @uses dxc.junit.opcodes.areturn.RunnerGenerator
   try {
     RunnerGenerator rg =
         (RunnerGenerator)
             Class.forName("dxc.junit.opcodes.areturn.jm.T_areturn_15").newInstance();
     Runner r = rg.run();
     assertFalse(r instanceof Runner);
     assertFalse(Runner.class.isAssignableFrom(r.getClass()));
     // only upon invocation of a concrete method,
     // a java.lang.IncompatibleClassChangeError is thrown
     r.doit();
     fail("expected a verification exception");
   } catch (Throwable t) {
     DxUtil.checkVerifyException(t);
   }
 }