问题遇到的现象和发生背景
一段多线程的代码，时不时出现报错，非必现，望帮忙解决
问题相关代码，请勿粘贴截图
List<ListenableFuture<Object>> listenableFutureList = Lists.newArrayList();
for (String dataKey : dataKeySet) {
listenableFutureList.add(asyncQueryManager.submit(() -> tollTimeStatisticsDomainServiceV4.moneyTime(queryParam)));
listenableFutureList.add(asyncQueryManager.submit(() -> tollTimeStatisticsDomainServiceV4.chainRatioTollTime(queryParam)));
listenableFutureList.add(asyncQueryManager.submit(() -> tollTimeStatisticsDomainServiceV4.chargeFreeStatistics(queryParam)));
listenableFutureList.add(asyncQueryManager.submit(() -> tollTimeStatisticsDomainServiceV4.moneyRecoverTime(queryParam)));
listenableFutureList.add(asyncQueryManager.submit(() -> tollTimeStatisticsDomainServiceV4.chainFromPreiod(queryParam)));
listenableFutureList.add(asyncQueryManager.submit(() -> tollTimeStatisticsDomainServiceV4.feeGrowthTrend(queryParam)));
listenableFutureList.add(asyncQueryManager.submit(() -> tollTimeStatisticsDomainServiceV4.annualFeeTarget(queryParam)));
}
List resultList = asyncQueryManager.getTaskListResult(10L, listenableFutureList);
Map<String, Object> result = Maps.newHashMap();
if (CollectionUtils.isNotEmpty(resultList)) {
resultList.stream().forEach(a -> result.putAll((Map<String, Object>) a));
}
public List getTaskListResult(Long waitSeconds,Collection<ListenableFuture<Object>> listenableFutures) {
ListenableFuture[] array = new ListenableFuture[listenableFutures.size()];
return getTaskResult(waitSeconds,listenableFutures.toArray(array));
}
// 获取异步线程结果等待时间，单位：秒
public List<Object> getTaskResult(Long waitSeconds,ListenableFuture<Object> ...listenableFutures){
waitSeconds = getWaitSeconds(waitSeconds);
try {
if(ObjectUtils.isEmpty(listenableFutures)){
return null;
}else{
return Futures.allAsList(listenableFutures).get(waitSeconds, TimeUnit.SECONDS);
}
} catch (InterruptedException e) {
log.error("等待处理结果时被打断",e);
// Thread.currentThread().interrupt();
} catch (ExecutionException e) {
e.printStackTrace();
log.error("ExecutionException",e);
} catch (TimeoutException e) {
e.printStackTrace();
log.error("等待处理结果超时",e);
}
return null;
}
运行结果及报错内容
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:564)
at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:443)
at com.google.common.util.concurrent.AbstractFuture$TrustedFuture.get(AbstractFuture.java:109)
at com.hiscene.hds.opendata.server.common.AsyncQueryManager.getTaskResult(AsyncQueryManager.java:87)
at com.hiscene.hds.opendata.server.common.AsyncQueryManager.getTaskListResult(AsyncQueryManager.java:72)
at com.hiscene.hds.opendata.server.submodule.toll.service.app.TollStatisticsServiceV4.getTollStatisticsData(TollStatisticsServiceV4.java:71)
at com.hiscene.hds.opendata.server.submodule.toll.controller.TollStatisticsControllerV4.getTollStatisticsData$original$Dyd6AcbV(TollStatisticsControllerV4.java:47)
at com.hiscene.hds.opendata.server.submodule.toll.controller.TollStatisticsControllerV4.getTollStatisticsData$original$Dyd6AcbV$accessor$BTxWJmE3(TollStatisticsControllerV4.java)
at com.hiscene.hds.opendata.server.submodule.toll.controller.TollStatisticsControllerV4$auxiliary$AaENxvHt.call(Unknown Source)
at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:86)
at com.hiscene.hds.opendata.server.submodule.toll.controller.TollStatisticsControllerV4.getTollStatisticsData(TollStatisticsControllerV4.java)
at com.hiscene.hds.opendata.server.submodule.toll.controller.TollStatisticsControllerV4$$FastClassBySpringCGLIB$$f039dc71.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:100)
at com.hiscene.config.RequestAccessLogConfiguration.paramsLogAndTimeAround(RequestAccessLogConfiguration.java:78)
at sun.reflect.GeneratedMethodAccessor237.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
at com.hiscene.hds.opendata.server.submodule.toll.controller.TollStatisticsControllerV4$$EnhancerBySpringCGLIB$$e0cb6de7.getTollStatisticsData(<generated>)
at sun.reflect.GeneratedMethodAccessor363.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:665)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at brave.servlet.TracingFilter.doFilter(TracingFilter.java:68)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at brave.servlet.TracingFilter.doFilter(TracingFilter.java:87)
at org.springframework.cloud.sleuth.instrument.web.LazyTracingFilter.doFilter(TraceWebServletAutoConfiguration.java:139)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke$original$fB9z2Ve3(StandardHostValve.java:139)
at org.apache.catalina.core.StandardHostValve.invoke$original$fB9z2Ve3$accessor$HYrkMTVo(StandardHostValve.java)
at org.apache.catalina.core.StandardHostValve$auxiliary$3ZOx8fIV.call(Unknown Source)
at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:86)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException: null
我的解答思路和尝试过的方法
1、加入为空判断
if(ObjectUtils.isEmpty(listenableFutures)){
return null;
}else{
return Futures.allAsList(listenableFutures).get(waitSeconds, TimeUnit.SECONDS);
}
2、估计是线程中的自己实现的方法有问题，但如果是线程中的自己实现的方法报错，抛出的异常会显示出来，现在是无显示
