#fixed code
                                @Test
    public void testSyncHandleSuccessfulResponse() throws Exception {
        RpcFuture<String> rpcFuture = new RpcFuture<String>(timeout, methodInfo, null, channelInfo, rpcClient);
        RpcResponse response = new RpcResponse();
        response.setResult("hello world");
        rpcFuture.handleResponse(response);
        String resp = rpcFuture.get(1, TimeUnit.SECONDS);
        assertThat(resp, is("hello world"));
    }
#vulnerable code 
                                @Test
    public void testSyncHandleSuccessfulResponse() throws Exception {
        RpcFuture rpcFuture = new RpcFuture<String>(timeout, methodInfo, null, channelInfo, rpcClient);
        RpcResponse response = new RpcResponse();
        response.setResult("hello world");
        rpcFuture.handleResponse(response);
        Response resp = rpcFuture.get(1, TimeUnit.SECONDS);
        assertThat((String) resp.getResult(), is("hello world"));
    } 
                            #location 8 
                            #vulnerability type NULL_DEREFERENCE