public static boolean isServerException(SofaRpcException exception) {
        int errorType = exception.getErrorType();
        return errorType >= 100 && errorType < 200;
    }
@Test
    public void isServerException() throws Exception {
        SofaRpcException exception = new SofaRpcException(RpcErrorType.SERVER_BUSY, "111");
        Assert.assertTrue(ExceptionUtils.isServerException(exception));
        exception = new SofaRpcException(RpcErrorType.CLIENT_TIMEOUT, "111");
        Assert.assertFalse(ExceptionUtils.isServerException(exception));
    }