Citrus Simulator 接收序列化 xml 數據時拋出 Nullpointer 異常

Question

我將 Citrus Simulator 作為 spring-boot 應用程序運行，以模擬響應 HTTP POST 調用的 web 服務。 在“實驗室”條件下一切正常。 只要我通過 Postman、curl 或瀏覽器插件手動發送數據，我就沒有問題並且答案清晰。 然而，一旦數據由另一個應用程序發送，我就會得到一個令人討厭的空指針異常。

我花了一段時間來查明問題，但現在我知道它是發送數據的格式。

發送漂亮的打印 xml 數據可以得到完美的答案。 不過，一旦我序列化 xml ，它就不會被 Citrus Simulator 正確處理，我會得到一個空指針異常。

使用 curl 我也可以通過終止發送的 xml 文件的格式來引發錯誤。

編輯這不是直接的格式。 Both applications, when sending data in a pretty printed format, will generate a HTTP Header Metadata with some (strange) contents -> curl sends Metadata="\t\t\t", postman sends Metadata="\n ". Sending a serialized xml, both applications send an empty Metadata Header thus resulting in a nullpointer exception right here (MessageService.java:60) -> StringUtils.abbreviate(headerEntry.getValue().toString(), 255))));

java.lang.NullPointerException: null
at com.consol.citrus.simulator.service.MessageService.lambda$saveMessage$0(MessageService.java:60) ~[citrus-simulator-starter-1.0.3.jar:na]
at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[na:1.8.0_201]
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[na:1.8.0_201]
at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580) ~[na:1.8.0_201]
at com.consol.citrus.simulator.service.MessageService.saveMessage(MessageService.java:58) ~[citrus-simulator-starter-1.0.3.jar:na]
at com.consol.citrus.simulator.service.MessageService$$FastClassBySpringCGLIB$$be0e8eaa.invoke(<generated>) ~[citrus-simulator-starter-1.0.3.jar:na]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:736) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) ~[spring-tx-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) ~[spring-tx-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:671) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at com.consol.citrus.simulator.service.MessageService$$EnhancerBySpringCGLIB$$f26ac16e.saveMessage(<generated>) ~[citrus-simulator-starter-1.0.3.jar:na]
at com.consol.citrus.simulator.service.ActivityService.saveScenarioMessage(ActivityService.java:124) ~[citrus-simulator-starter-1.0.3.jar:na]
at com.consol.citrus.simulator.service.ActivityService$$FastClassBySpringCGLIB$$1784762a.invoke(<generated>) ~[citrus-simulator-starter-1.0.3.jar:na]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:736) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) ~[spring-tx-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) ~[spring-tx-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:671) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at com.consol.citrus.simulator.service.ActivityService$$EnhancerBySpringCGLIB$$35f927ee.saveScenarioMessage(<generated>) ~[citrus-simulator-starter-1.0.3.jar:na]
at com.consol.citrus.simulator.endpoint.EndpointMessageHandler.saveScenarioMessage(EndpointMessageHandler.java:58) ~[citrus-simulator-starter-1.0.3.jar:na]
at com.consol.citrus.simulator.endpoint.EndpointMessageHandler.handleReceivedMessage(EndpointMessageHandler.java:51) ~[citrus-simulator-starter-1.0.3.jar:na]
at com.consol.citrus.simulator.scenario.ScenarioEndpoint.messageReceived(ScenarioEndpoint.java:111) ~[citrus-simulator-starter-1.0.3.jar:na]
at com.consol.citrus.simulator.scenario.ScenarioEndpoint.receive(ScenarioEndpoint.java:88) ~[citrus-simulator-starter-1.0.3.jar:na]
at com.consol.citrus.simulator.scenario.SVManagerScenario.receive(SVManagerScenario.java:60) ~[classes/:na]
at com.consol.citrus.simulator.scenario.SVManagerScenario.run(SVManagerScenario.java:24) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:215) ~[spring-core-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at com.consol.citrus.simulator.service.ScenarioExecutionService.lambda$null$3(ScenarioExecutionService.java:150) ~[citrus-simulator-starter-1.0.3.jar:na]
at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:491) ~[spring-core-4.3.21.RELEASE.jar:4.3.21.RELEASE]
at com.consol.citrus.simulator.service.ScenarioExecutionService.lambda$startScenarioAsync$4(ScenarioExecutionService.java:111) ~[citrus-simulator-starter-1.0.3.jar:na]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_201]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_201]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_201]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_201]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_201]

不幸的是，我無法獲得最新版本的柑橘。 我的設置在 java 1.8 和 citrus 2.7.1 上運行

有沒有人對舊版本的 Citrus Simulator 有過類似的問題？

我很感激任何幫助

Answer 1

我從來沒有調查過這個的原因（嗯，它顯然是一些空頭），但一個簡單的解決方法（不是解決方案！ ）是覆蓋com.consol.citrus.simulator.serviceMessageService bean，如下所示：

@Service
@Primary
@Transactional
public class NullHeaderAwareMessageService extends MessageService {

    private final MessageRepository messageRepository;

    @Autowired
    public NullHeaderAwareMessageService(MessageRepository messageRepository) {
        super(messageRepository);

        this.messageRepository = messageRepository;
    }

    @Override
    public Message saveMessage(Message.Direction direction, String payload, String citrusMessageId, Map<String, Object> headers) {
        Message message = new Message();
        message.setDate(new Date());
        message.setDirection(direction);
        message.setPayload(payload);
        message.setCitrusMessageId(citrusMessageId);
        if (headers != null) {
            headers.entrySet().stream()
                    .filter(headerEntry -> headerEntry.getValue() != null)
                    .forEach(headerEntry -> message.addHeader(
                                new MessageHeader(headerEntry.getKey(),
                                        StringUtils.abbreviate(headerEntry.getValue().toString(), 255))));
        }

        return messageRepository.save(message);
    }
}