code: @Test public void testProtocolStackRemoveRemoveSequence() throws Exception {
    KernelServices services=buildKernelServices();
    ModelNode operation=Operations.createCompositeOperation(addStackOp,addTransportOp,addProtocolOp);
    ModelNode result=services.executeOperation(operation);
    Assert.assertEquals(SUCCESS,result.get(OUTCOME).asString());
    result=services.executeOperation(removeStackOp);
    Assert.assertEquals(SUCCESS,result.get(OUTCOME).asString());
    result=services.executeOperation(removeStackOp);
    Assert.assertEquals(FAILED,result.get(OUTCOME).asString());
  }
  