public Frame makeExceptionHandlerStartFrame(CstType exceptionClass) {
    ExecutionStack newStack = getStack().copy();

    newStack.clear();
    newStack.push(exceptionClass);

    return new Frame(getLocals(), newStack, subroutines);
  }
Makes a new frame for an exception handler block invoked from this frame.

@param exceptionClass exception that the handler block will handle
@return new frame
android/android_framework/dex-maker/src/main/java/com/android/dx/cf/code/Frame.java