日志中的Worklight 6.1 JPA错误:无法启动应用程序

Question

我有WL 6.1工作室（在顶部RAD 9.0.1）是自由档案8.5.5.1WL 6.1德比数据库。

在某个时间点，我开始收到错误并且我的WL应用程序未能启动，从WA日志看，JPA似乎存在问题（或JPA类加载冲突）？

我可以检查什么来修复它？

下面是日志文件的相关片段（应用程序无法启动）

[4/1/14 12:29:56:077 VET] 00000020 com.ibm.ws.kernel.feature.internal.FeatureManager            A CWWKF0011I: The server server1 is ready to run a smarter planet.
[4/1/14 12:29:56:459 VET] 00000030 com.ibm.ws.session.WASSessionCore                            I SESN8501I: The session manager did not find a persistent storage location; HttpSession objects will be stored in the local application server's memory.
[4/1/14 12:29:56:465 VET] 00000030 com.ibm.ws.session.WASSessionCore                            I SESN0176I: A new session context will be created for application key default_host/MyProject
[4/1/14 12:29:56:477 VET] 00000030 com.ibm.ws.util                                              I SESN0172I: The session manager is using the Java default SecureRandom implementation for session ID generation.
[4/1/14 12:29:56:831 VET] 00000030 com.ibm.ws.cache.CacheServiceImpl                            I DYNA1056I: Dynamic Cache (object cache) initialized successfully.
[4/1/14 12:29:56:832 VET] 00000030 com.ibm.ws.cache.CacheServiceImpl                            I DYNA1056I: Dynamic Cache (object cache) initialized successfully.
[4/1/14 12:29:58:334 VET] 00000030 com.worklight.server.bundle.project.JeeProjectActivator      I FWLST0001I: Worklight home folder is C:\IBM\WebSphere\Liberty\usr\servers\server1\workarea\org.eclipse.osgi\bundles\76\data\temp\default_node\SMF_WebContainer\MyProject\MyProject [project MyProject]
[4/1/14 12:29:59:194 VET] 00000030 ingframework.context.support.FileSystemXmlApplicationContext I Refreshing org.springframework.context.support.FileSystemXmlApplicationContext@2bf82bf8: display name [org.springframework.context.support.FileSystemXmlApplicationContext@2bf82bf8]; startup date [Tue Apr 01 12:29:59 VET 2014]; root of context hierarchy
[4/1/14 12:29:59:275 VET] 00000030 rg.springframework.beans.factory.xml.XmlBeanDefinitionReader I Loading XML bean definitions from URL [wsjar:file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar!/conf/spring-server-core.xml]
[4/1/14 12:29:59:397 VET] 00000030 rg.springframework.beans.factory.xml.XmlBeanDefinitionReader I Loading XML bean definitions from URL [wsjar:file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar!/conf/core.xml]
[4/1/14 12:29:59:429 VET] 00000030 rg.springframework.beans.factory.xml.XmlBeanDefinitionReader I Loading XML bean definitions from URL [wsjar:file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar!/conf/integration.xml]
[4/1/14 12:29:59:441 VET] 00000030 rg.springframework.beans.factory.xml.XmlBeanDefinitionReader I Loading XML bean definitions from URL [wsjar:file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar!/conf/gadgets.xml]
[4/1/14 12:29:59:450 VET] 00000030 ngframework.beans.factory.support.DefaultListableBeanFactory I Overriding bean definition for bean 'gadgetCustomizedResourcesRoot': replacing [Generic bean: class [com.worklight.core.util.WorkingDirectory]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in URL [wsjar:file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar!/conf/gadgets.xml]] with [Generic bean: class [com.worklight.core.util.WorkingDirectory]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in URL [wsjar:file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar!/conf/spring-server-core.xml]]
[4/1/14 12:29:59:450 VET] 00000030 ngframework.beans.factory.support.DefaultListableBeanFactory I Overriding bean definition for bean 'gadgetResourcesRoot': replacing [Generic bean: class [com.worklight.core.util.WorkingDirectory]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in URL [wsjar:file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar!/conf/gadgets.xml]] with [Generic bean: class [com.worklight.core.util.WorkingDirectory]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in URL [wsjar:file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar!/conf/spring-server-core.xml]]
[4/1/14 12:29:59:452 VET] 00000030 ingframework.context.support.FileSystemXmlApplicationContext I Bean factory for application context [org.springframework.context.support.FileSystemXmlApplicationContext@2bf82bf8]: org.springframework.beans.factory.support.DefaultListableBeanFactory@7fa67fa6
[4/1/14 12:29:59:606 VET] 00000030 ngframework.beans.factory.support.DefaultListableBeanFactory I Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7fa67fa6: defining beans [txManager,mailingService,WorkLightNotice,rssBrokerUtils,audit,GenericDAO,propertiesDAO,clusterSynchronizationDAO,taskCoordinator,taskManager,worklightAuthenticationService,authenticationDAO,ssoDAO,identityAssociationCleanupTask,ClusterDataSynchronizationTask,ssoExpiredLoginContextsCleanupTask,keyStoreManager,analyticsHttpService,invocationContextManager,notificationDAO,dataAccessService,shellResourcesService,pushReportsService,analyticsService,coreServiceManager,adapterManager,nodeProcessManager,deployService,notificationsSimulationManager,notificationDispatcher,factProcessingTask,PlatformUsageProcessingTask,notificationCleanupTask,WSSecurityService,gadgetDAO,deviceDAO,licenseTermsDAO,widgetService,platformUsageService,gfwProps,gadgetEnvironmentManager,gadgetResourcesRoot,gadgetCustomizedResourcesRoot,appVersionAccessService,DeployableFolderCleanupTask,applicationMetadataService,worklight-direct,rssBrokerDS,brokerSessionFactory,reportService,reportsDS,reportsBrokerDS,reportsSessionFactory,gadgetReportsDAO,notificationReportsDao,gadgetReportsService,analyticsFactService]; root of factory hierarchy
[4/1/14 12:29:59:786 VET] 00000030 com.worklight.server.bundle.api.WorklightConfiguration       I FWLSE4006I: Worklight Studio is running in 'development' mode. [project MyProject]
[4/1/14 12:30:01:409 VET] 00000030 ringframework.orm.jpa.LocalContainerEntityManagerFactoryBean I Building JPA container EntityManagerFactory for persistence unit 'WorklightPU'
[4/1/14 12:30:01:643 VET] 00000030 SystemErr                                                    R 16  WorklightPU  WARN   [Default Executor-thread-5] openjpa.Runtime - An error occurred while registering a ClassTransformer with PersistenceUnitInfo: name 'WorklightPU', root URL [file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar]. The error has been consumed. To see it, set your openjpa.Runtime log level to TRACE. Load-time class transformation will not be available.
[4/1/14 12:30:02:115 VET] 00000030 SystemErr                                                    R 489  WorklightPU  INFO   [Default Executor-thread-5] openjpa.Runtime - Starting OpenJPA 1.2.2
[4/1/14 12:30:02:169 VET] 00000030 SystemErr                                                    R 542  WorklightPU  INFO   [Default Executor-thread-5] openjpa.jdbc.JDBC - Using dictionary class "org.apache.openjpa.jdbc.sql.HSQLDictionary".
[4/1/14 12:30:03:265 VET] 00000030 com.worklight.server.database.api.WorklightDataSource        I FWLSE0187I: jdbc/WorklightReportsDS data source is disabled. No connection opened.  [project MyProject]
[4/1/14 12:30:03:273 VET] 00000030 ringframework.orm.jpa.LocalContainerEntityManagerFactoryBean I Building JPA container EntityManagerFactory for persistence unit 'WorklightReportsPU'
[4/1/14 12:30:03:278 VET] 00000030 SystemErr                                                    R 0  WorklightReportsPU  WARN   [Default Executor-thread-5] openjpa.Runtime - An error occurred while registering a ClassTransformer with PersistenceUnitInfo: name 'WorklightReportsPU', root URL [file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar]. The error has been consumed. To see it, set your openjpa.Runtime log level to TRACE. Load-time class transformation will not be available.
[4/1/14 12:30:03:292 VET] 00000030 com.worklight.report.impl.GadgetReportsServiceImpl           I FWLSE0186I: Application raw reports are disabled. [project MyProject]
[4/1/14 12:30:03:676 VET] 00000030 ngframework.beans.factory.support.DefaultListableBeanFactory I Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7fa67fa6: defining beans [txManager,mailingService,WorkLightNotice,rssBrokerUtils,audit,GenericDAO,propertiesDAO,clusterSynchronizationDAO,taskCoordinator,taskManager,worklightAuthenticationService,authenticationDAO,ssoDAO,identityAssociationCleanupTask,ClusterDataSynchronizationTask,ssoExpiredLoginContextsCleanupTask,keyStoreManager,analyticsHttpService,invocationContextManager,notificationDAO,dataAccessService,shellResourcesService,pushReportsService,analyticsService,coreServiceManager,adapterManager,nodeProcessManager,deployService,notificationsSimulationManager,notificationDispatcher,factProcessingTask,PlatformUsageProcessingTask,notificationCleanupTask,WSSecurityService,gadgetDAO,deviceDAO,licenseTermsDAO,widgetService,platformUsageService,gfwProps,gadgetEnvironmentManager,gadgetResourcesRoot,gadgetCustomizedResourcesRoot,appVersionAccessService,DeployableFolderCleanupTask,applicationMetadataService,worklight-direct,rssBrokerDS,brokerSessionFactory,reportService,reportsDS,reportsBrokerDS,reportsSessionFactory,gadgetReportsDAO,notificationReportsDao,gadgetReportsService,analyticsFactService]; root of factory hierarchy
[4/1/14 12:30:03:678 VET] 00000030 ringframework.orm.jpa.LocalContainerEntityManagerFactoryBean I Closing JPA EntityManagerFactory for persistence unit 'WorklightReportsPU'
[4/1/14 12:30:03:680 VET] 00000030 ringframework.orm.jpa.LocalContainerEntityManagerFactoryBean I Closing JPA EntityManagerFactory for persistence unit 'WorklightPU'
[4/1/14 12:30:04:038 VET] 00000030 hsqldb.db.HSQLDB44FE2B1271.ENGINE                            I Database closed
[4/1/14 12:30:04:150 VET] 00000030 com.worklight.server.bundle.project.JeeProjectActivator      E FWLST0003E: ========= Failed starting project /MyProject [project MyProject]
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'notificationDispatcher' defined in URL [wsjar:file:/C:/IBM/WebSphere/Liberty/usr/shared/resources/worklight-jee-library-6.1.0.jar!/conf/integration.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: methods with same signature detach(java.lang.Object) but incompatible return types: void and others
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
    at java.security.AccessController.doPrivileged(AccessController.java:224)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
    at com.worklight.server.bundle.project.JeeProjectActivator.loadSpringConfiguration(JeeProjectActivator.java:291)
    at com.worklight.server.bundle.project.JeeProjectActivator.contextInitialized(JeeProjectActivator.java:146)
    at com.ibm.ws.webcontainer.webapp.WebApp.notifyServletContextCreated(WebApp.java:2220)
    at com.ibm.ws.webcontainer.webapp.WebApp.initialize(WebApp.java:960)
    at com.ibm.ws.webcontainer.webapp.WebApp.initialize(WebApp.java:6049)
    at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost.startWebApp(DynamicVirtualHost.java:421)
    at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost.createRunnableHandler(DynamicVirtualHost.java:241)
    at com.ibm.ws.http.internal.VirtualHostImpl.discriminate(VirtualHostImpl.java:182)
    at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink.ready(HttpDispatcherLink.java:169)
    at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:448)
    at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.handleNewRequest(HttpInboundLink.java:382)
    at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.processRequest(HttpInboundLink.java:282)
    at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.ready(HttpInboundLink.java:253)
    at com.ibm.ws.tcpchannel.internal.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:174)
    at com.ibm.ws.tcpchannel.internal.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:83)
    at com.ibm.ws.tcpchannel.internal.WorkQueueManager.requestComplete(WorkQueueManager.java:502)
    at com.ibm.ws.tcpchannel.internal.WorkQueueManager.attemptIO(WorkQueueManager.java:550)
    at com.ibm.ws.tcpchannel.internal.WorkQueueManager.workerRun(WorkQueueManager.java:899)
    at com.ibm.ws.tcpchannel.internal.WorkQueueManager$Worker.run(WorkQueueManager.java:981)
    at com.ibm.ws.threading.internal.Worker.executeWork(Worker.java:439)
    at com.ibm.ws.threading.internal.Worker.run(Worker.java:421)
    at java.lang.Thread.run(Thread.java:736)
Caused by: java.lang.IllegalArgumentException: methods with same signature detach(java.lang.Object) but incompatible return types: void and others
    at sun.misc.ProxyGenerator.checkReturnTypes(ProxyGenerator.java:622)
    at sun.misc.ProxyGenerator.generateClassFile(ProxyGenerator.java:432)
    at sun.misc.ProxyGenerator.generateProxyClass(ProxyGenerator.java:318)
    at java.lang.reflect.Proxy.getProxyClass(Proxy.java:513)
    at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:593)
    at org.springframework.orm.jpa.ExtendedEntityManagerCreator.createProxy(ExtendedEntityManagerCreator.java:265)
    at org.springframework.orm.jpa.ExtendedEntityManagerCreator.createProxy(ExtendedEntityManagerCreator.java:230)
    at org.springframework.orm.jpa.ExtendedEntityManagerCreator.createApplicationManagedEntityManager(ExtendedEntityManagerCreator.java:111)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler.invoke(AbstractEntityManagerFactoryBean.java:437)
    at $Proxy22.createEntityManager(Unknown Source)
    at org.springframework.orm.jpa.EntityManagerFactoryAccessor.createEntityManager(EntityManagerFactoryAccessor.java:116)
    at org.springframework.orm.jpa.JpaTemplate.execute(JpaTemplate.java:177)
    at org.springframework.orm.jpa.JpaTemplate.executeFind(JpaTemplate.java:151)
    at org.springframework.orm.jpa.JpaTemplate.findByNamedQuery(JpaTemplate.java:343)
    at com.worklight.server.database.api.JpaDaoHelper.executeQuery(JpaDaoHelper.java:36)
    at com.worklight.integration.notification.NotificationDAO.getRegisteredApplications(NotificationDAO.java:151)
    at com.worklight.integration.notification.Dispatcher.init(Dispatcher.java:67)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:611)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
    ... 34 more

[4/1/14 12:30:04:340 VET] 00000030 org.jboss.resteasy.spi.ResteasyDeployment                    I Deploying javax.ws.rs.core.Application: class com.worklight.console.application.ConsoleAPIApplication
[4/1/14 12:30:04:343 VET] 00000030 org.jboss.resteasy.spi.ResteasyDeployment                    I Adding singleton resource com.worklight.console.controllers.DevicesController from Application javax.ws.rs.core.Application
[4/1/14 12:30:04:343 VET] 00000030 org.jboss.resteasy.spi.ResteasyDeployment                    I Adding singleton resource com.worklight.console.controllers.LicenseTermsController from Application javax.ws.rs.core.Application
[4/1/14 12:30:04:343 VET] 00000030 org.jboss.resteasy.spi.ResteasyDeployment                    I Adding singleton resource com.worklight.console.controllers.AdaptersController from Application javax.ws.rs.core.Application
[4/1/14 12:30:04:343 VET] 00000030 org.jboss.resteasy.spi.ResteasyDeployment                    I Adding singleton resource com.worklight.console.controllers.ApplicationsController from Application javax.ws.rs.core.Application
[4/1/14 12:30:04:344 VET] 00000030 org.jboss.resteasy.spi.ResteasyDeployment                    I Adding singleton resource com.worklight.console.controllers.UIController from Application javax.ws.rs.core.Application
[4/1/14 12:30:04:344 VET] 00000030 org.jboss.resteasy.spi.ResteasyDeployment                    I Adding singleton resource com.worklight.console.controllers.PushController from Application javax.ws.rs.core.Application
[4/1/14 12:30:04:344 VET] 00000030 org.jboss.resteasy.spi.ResteasyDeployment                    I Adding singleton resource com.worklight.console.controllers.UsersController from Application javax.ws.rs.core.Application
[4/1/14 12:30:04:567 VET] 00000020 com.ibm.ws.logging.internal.impl.IncidentImpl                I FFDC1015I: An FFDC Incident has been created: "javax.servlet.ServletException: Worklight Console initialization failed.Logged Exception: java.lang.IllegalArgumentException: methods with same signature detach(java.lang.Object) but incompatible return types: void and others com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter 144" at ffdc_14.04.01_12.30.04.0.log
[4/1/14 12:30:04:646 VET] 00000020 com.ibm.ws.logging.internal.impl.IncidentImpl                I FFDC1015I: An FFDC Incident has been created: "javax.servlet.ServletException: Worklight Console initialization failed.Logged Exception: java.lang.IllegalArgumentException: methods with same signature detach(java.lang.Object) but incompatible return types: void and others com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter 82" at ffdc_14.04.01_12.30.04.1.log
[4/1/14 12:30:04:648 VET] 00000020 com.ibm.ws.logging.internal.impl.IncidentImpl                I FFDC1015I: An FFDC Incident has been created: "javax.servlet.ServletException: Worklight Console initialization failed.Logged Exception: java.lang.IllegalArgumentException: methods with same signature detach(java.lang.Object) but incompatible return types: void and others com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters 1064" at ffdc_14.04.01_12.30.04.2.log
[4/1/14 12:30:04:665 VET] 00000020 com.ibm.ws.webcontainer.webapp                               E SRVE0315E: An execption occurred: com.ibm.ws.webcontainer.webapp.WebAppErrorReport: javax.servlet.ServletException: Worklight Console initialization failed.Logged Exception: java.lang.IllegalArgumentException: methods with same signature detach(java.lang.Object) but incompatible return types: void and others
    at com.ibm.ws.webcontainer.webapp.WebAppErrorReport.constructErrorReport(WebAppErrorReport.java:153)
    at com.ibm.ws.webcontainer.webapp.WebAppErrorReport.constructErrorReport(WebAppErrorReport.java:194)
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1098)
    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:4510)
    at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost$2.handleRequest(DynamicVirtualHost.java:282)
    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:954)
    at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost$2.run(DynamicVirtualHost.java:252)
    at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink$TaskWrapper.run(HttpDispatcherLink.java:584)
    at com.ibm.ws.threading.internal.Worker.executeWork(Worker.java:439)
    at com.ibm.ws.threading.internal.Worker.run(Worker.java:421)
    at java.lang.Thread.run(Thread.java:736)
Caused by: javax.servlet.ServletException: Worklight Console initialization failed.Logged Exception: java.lang.IllegalArgumentException: methods with same signature detach(java.lang.Object) but incompatible return types: void and others
    at com.worklight.core.auth.impl.AuthenticationFilter.verifyServletInitialized(AuthenticationFilter.java:300)
    at com.worklight.core.auth.impl.AuthenticationFilter.doFilter(AuthenticationFilter.java:111)
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:194)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:85)
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:968)
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1056)
    ... 8 more

Answer 1

该异常是由于Liberty运行时中的类存在冲突问题。加载的类取决于您在Liberty profile server.xml文件中定义的特性。例如，当启用open-jpa和jax-rs功能时，工作灯会发生冲突(并且设置parentLast委托不能解决问题),您使用哪个功能？