JEE Glassfish @schedule 不起作用
JEE Glassfish @schedule doesn't work
我是第一次在无状态 bean 中使用 @Schedule，由于某种原因它没有被 Glassfish 执行，尽管 Glassfish 说它已成功部署。
我的 Java 版本是 1.8。0_91
Glassfish 版本 4.1.1
我越来越简化代码，所以现在我的代码是下面底部的代码，关键行是：@Schedule(second="0", minute="", hour =")
我在 Glassfish 中使用 jdbc/__TimerPool 作为 JDBC 资源并且可以成功执行 __TimerPool 的 ping。
在我的 Glassfish 启动日志中，我发现了一个堆栈跟踪：
java.lang.NullPointerException 非常相似（第一行与 Glassfish/Eclipse (https://java.net/jira/browse/GLASSFISH-21468) 的开放缺陷相同，根据我的阅读，这是次要的，因此不应阻止调度工作。
任何人都知道哪里出了问题以及我如何才能完成这项工作？
干杯
托尔斯滕
这里是堆栈跟踪：
java.lang.NullPointerException
at org.eclipse.persistence.platform.server.ServerPlatformUtils.createServerPlatform(ServerPlatformUtils.java:99)
at org.eclipse.persistence.sessions.factories.SessionManager.init(SessionManager.java:77)
at org.eclipse.persistence.sessions.factories.SessionManager.<clinit>(SessionManager.java:71)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.addSessionToGlobalSessionManager(EntityManagerSetupImpl.java:907)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.initSession(EntityManagerSetupImpl.java:2671)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:675)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getAbstractSession(EntityManagerFactoryDelegate.java:205)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:305)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:337)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:318)
at com.sun.enterprise.container.common.impl.EntityManagerWrapper._getDelegate(EntityManagerWrapper.java:197)
at com.sun.enterprise.container.common.impl.EntityManagerWrapper.createNamedQuery(EntityManagerWrapper.java:521)
at org.glassfish.ejb.persistent.timer.TimerBean.findTimersByOwnerAndState(TimerBean.java:209)
at org.glassfish.ejb.persistent.timer.TimerBean.findActiveTimersOwnedByThisServer(TimerBean.java:523)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4786)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:656)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:608)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4758)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4746)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
at com.sun.proxy.$Proxy221.findActiveTimersOwnedByThisServer(Unknown Source)
at org.glassfish.ejb.persistent.timer.PersistentEJBTimerService.restoreEJBTimers(PersistentEJBTimerService.java:369)
at org.glassfish.ejb.persistent.timer.PersistentEJBTimerService.resetEJBTimers(PersistentEJBTimerService.java:1400)
at com.sun.ejb.containers.EJBTimerService.initEJBTimerService(EJBTimerService.java:236)
at com.sun.ejb.containers.EJBTimerService.getEJBTimerService(EJBTimerService.java:205)
at com.sun.ejb.containers.EJBTimerService.getEJBTimerService(EJBTimerService.java:187)
at com.sun.ejb.containers.BaseContainer.<init>(BaseContainer.java:825)
at com.sun.ejb.containers.StatelessSessionContainer.<init>(StatelessSessionContainer.java:143)
at com.sun.ejb.containers.StatelessSessionContainer.<init>(StatelessSessionContainer.java:137)
at com.sun.ejb.containers.StatelessContainerFactory.createContainer(StatelessContainerFactory.java:61)
at org.glassfish.ejb.startup.EjbApplication.loadContainers(EjbApplication.java:221)
at org.glassfish.ejb.startup.EjbDeployer.load(EjbDeployer.java:291)
at org.glassfish.ejb.startup.EjbDeployer.load(EjbDeployer.java:99)
at org.glassfish.internal.data.ModuleInfo.load(ModuleInfo.java:206)
at org.glassfish.internal.data.ApplicationInfo.load(ApplicationInfo.java:313)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:496)
at com.sun.enterprise.v3.server.ApplicationLoaderService.processApplication(ApplicationLoaderService.java:406)
at com.sun.enterprise.v3.server.ApplicationLoaderService.postConstruct(ApplicationLoaderService.java:243)
at org.jvnet.hk2.internal.ClazzCreator.postConstructMe(ClazzCreator.java:326)
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:374)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:471)
at org.glassfish.hk2.runlevel.internal.AsyncRunLevelContext.findOrCreate(AsyncRunLevelContext.java:228)
at org.glassfish.hk2.runlevel.RunLevelContext.findOrCreate(RunLevelContext.java:85)
at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2072)
at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:114)
at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:88)
at org.glassfish.hk2.runlevel.internal.CurrentTaskFuture$QueueRunner.oneJob(CurrentTaskFuture.java:1213)
at org.glassfish.hk2.runlevel.internal.CurrentTaskFuture$QueueRunner.run(CurrentTaskFuture.java:1144)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
]]
这是我的豆子：
import javax.ejb.Stateless;
import javax.ejb.Schedule;
@Stateless
public class PrintCenter implements PrintCenterRemote {
public PrintCenter() {
// TODO Auto-generated constructor stub
}
@Schedule(second="0", minute="*", hour="*")
public void run(){
System.out.println("Test");
}
}
尝试将 PrintCenter 用作带有 @Startup@Singleton 注释的 bean。
我找到了解决方案。我需要在调试模式下启动域，否则 system.out.println 不会放入 server.log 文件:-)
我是第一次在无状态 bean 中使用 @Schedule，由于某种原因它没有被 Glassfish 执行，尽管 Glassfish 说它已成功部署。 我的 Java 版本是 1.8。0_91 Glassfish 版本 4.1.1
我越来越简化代码，所以现在我的代码是下面底部的代码，关键行是：@Schedule(second="0", minute="", hour =")
我在 Glassfish 中使用 jdbc/__TimerPool 作为 JDBC 资源并且可以成功执行 __TimerPool 的 ping。
在我的 Glassfish 启动日志中，我发现了一个堆栈跟踪： java.lang.NullPointerException 非常相似（第一行与 Glassfish/Eclipse (https://java.net/jira/browse/GLASSFISH-21468) 的开放缺陷相同，根据我的阅读，这是次要的，因此不应阻止调度工作。
任何人都知道哪里出了问题以及我如何才能完成这项工作？
干杯 托尔斯滕
这里是堆栈跟踪：
java.lang.NullPointerException
at org.eclipse.persistence.platform.server.ServerPlatformUtils.createServerPlatform(ServerPlatformUtils.java:99)
at org.eclipse.persistence.sessions.factories.SessionManager.init(SessionManager.java:77)
at org.eclipse.persistence.sessions.factories.SessionManager.<clinit>(SessionManager.java:71)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.addSessionToGlobalSessionManager(EntityManagerSetupImpl.java:907)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.initSession(EntityManagerSetupImpl.java:2671)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:675)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getAbstractSession(EntityManagerFactoryDelegate.java:205)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:305)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:337)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:318)
at com.sun.enterprise.container.common.impl.EntityManagerWrapper._getDelegate(EntityManagerWrapper.java:197)
at com.sun.enterprise.container.common.impl.EntityManagerWrapper.createNamedQuery(EntityManagerWrapper.java:521)
at org.glassfish.ejb.persistent.timer.TimerBean.findTimersByOwnerAndState(TimerBean.java:209)
at org.glassfish.ejb.persistent.timer.TimerBean.findActiveTimersOwnedByThisServer(TimerBean.java:523)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4786)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:656)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:608)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4758)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4746)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
at com.sun.proxy.$Proxy221.findActiveTimersOwnedByThisServer(Unknown Source)
at org.glassfish.ejb.persistent.timer.PersistentEJBTimerService.restoreEJBTimers(PersistentEJBTimerService.java:369)
at org.glassfish.ejb.persistent.timer.PersistentEJBTimerService.resetEJBTimers(PersistentEJBTimerService.java:1400)
at com.sun.ejb.containers.EJBTimerService.initEJBTimerService(EJBTimerService.java:236)
at com.sun.ejb.containers.EJBTimerService.getEJBTimerService(EJBTimerService.java:205)
at com.sun.ejb.containers.EJBTimerService.getEJBTimerService(EJBTimerService.java:187)
at com.sun.ejb.containers.BaseContainer.<init>(BaseContainer.java:825)
at com.sun.ejb.containers.StatelessSessionContainer.<init>(StatelessSessionContainer.java:143)
at com.sun.ejb.containers.StatelessSessionContainer.<init>(StatelessSessionContainer.java:137)
at com.sun.ejb.containers.StatelessContainerFactory.createContainer(StatelessContainerFactory.java:61)
at org.glassfish.ejb.startup.EjbApplication.loadContainers(EjbApplication.java:221)
at org.glassfish.ejb.startup.EjbDeployer.load(EjbDeployer.java:291)
at org.glassfish.ejb.startup.EjbDeployer.load(EjbDeployer.java:99)
at org.glassfish.internal.data.ModuleInfo.load(ModuleInfo.java:206)
at org.glassfish.internal.data.ApplicationInfo.load(ApplicationInfo.java:313)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:496)
at com.sun.enterprise.v3.server.ApplicationLoaderService.processApplication(ApplicationLoaderService.java:406)
at com.sun.enterprise.v3.server.ApplicationLoaderService.postConstruct(ApplicationLoaderService.java:243)
at org.jvnet.hk2.internal.ClazzCreator.postConstructMe(ClazzCreator.java:326)
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:374)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:471)
at org.glassfish.hk2.runlevel.internal.AsyncRunLevelContext.findOrCreate(AsyncRunLevelContext.java:228)
at org.glassfish.hk2.runlevel.RunLevelContext.findOrCreate(RunLevelContext.java:85)
at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2072)
at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:114)
at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:88)
at org.glassfish.hk2.runlevel.internal.CurrentTaskFuture$QueueRunner.oneJob(CurrentTaskFuture.java:1213)
at org.glassfish.hk2.runlevel.internal.CurrentTaskFuture$QueueRunner.run(CurrentTaskFuture.java:1144)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
]]
这是我的豆子：
import javax.ejb.Stateless;
import javax.ejb.Schedule;
@Stateless
public class PrintCenter implements PrintCenterRemote {
public PrintCenter() {
// TODO Auto-generated constructor stub
}
@Schedule(second="0", minute="*", hour="*")
public void run(){
System.out.println("Test");
}
}
尝试将 PrintCenter 用作带有 @Startup@Singleton 注释的 bean。
我找到了解决方案。我需要在调试模式下启动域，否则 system.out.println 不会放入 server.log 文件:-)