Jsf 部署时位于com.sun.enterprise.deployment.util.ComponentValidator.accept（）的java.lang.NullPointerException

我正在开发一个JavaEE应用程序，并且面临一些错误，我不确定这是否是我的代码问题

我为实体类（Facade）创建了一个名为Staff的实体类和一个无状态会话bean，以便从WAR应用程序访问它。然而，最初我有一个托管Bean，它使用@EJB注释引用了该Facade，并且运行良好；然而，当我试图在另一个托管Bean中引用它时，以下错误开始显示：

Severe:   Exception during lifecycle processing
java.lang.NullPointerException
    at com.sun.enterprise.deployment.util.ComponentValidator.accept(ComponentValidator.java:554)
    at com.sun.enterprise.deployment.util.DefaultDOLVisitor.accept(DefaultDOLVisitor.java:78)
    at com.sun.enterprise.deployment.util.ComponentValidator.accept(ComponentValidator.java:123)
    at com.sun.enterprise.deployment.util.ApplicationValidator.accept(ApplicationValidator.java:152)
    at org.glassfish.web.deployment.util.WebBundleValidator.accept(WebBundleValidator.java:81)
    at com.sun.enterprise.deployment.BundleDescriptor.visit(BundleDescriptor.java:625)
    at org.glassfish.web.deployment.descriptor.WebBundleDescriptorImpl.visit(WebBundleDescriptorImpl.java:1999)
    at org.glassfish.web.deployment.descriptor.WebBundleDescriptorImpl.visit(WebBundleDescriptorImpl.java:1989)
    at com.sun.enterprise.deployment.util.ApplicationValidator.accept(ApplicationValidator.java:131)
    at com.sun.enterprise.deployment.BundleDescriptor.visit(BundleDescriptor.java:625)
    at com.sun.enterprise.deployment.archivist.ApplicationArchivist.validate(ApplicationArchivist.java:703)
    at com.sun.enterprise.deployment.archivist.ApplicationArchivist.openWith(ApplicationArchivist.java:248)
    at com.sun.enterprise.deployment.archivist.ApplicationFactory.openWith(ApplicationFactory.java:232)
    at org.glassfish.javaee.core.deployment.DolProvider.processDOL(DolProvider.java:193)
    at org.glassfish.javaee.core.deployment.DolProvider.load(DolProvider.java:227)
    at org.glassfish.javaee.core.deployment.DolProvider.load(DolProvider.java:96)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.loadDeployer(ApplicationLifecycle.java:881)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.setupContainerInfos(ApplicationLifecycle.java:821)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:377)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:219)
    at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:491)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:539)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:535)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:360)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:534)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:565)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:557)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:360)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:556)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1464)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1300(CommandRunnerImpl.java:109)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1846)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1722)
    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:534)
    at com.sun.enterprise.v3.admin.AdminAdapter.onMissingResource(AdminAdapter.java:224)
    at org.glassfish.grizzly.http.server.StaticHttpHandlerBase.service(StaticHttpHandlerBase.java:189)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571)
    at java.lang.Thread.run(Thread.java:748)

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正在尝试在线搜索解决方案，但未找到任何结果。如果有人能回答，我将不胜感激。

您是否尝试过最新版本的Glassfish？请编辑您的问题以提供一个。@Selaron问题似乎是因为有时

@EJB

注释无法识别引用的外观。但我真的不明白你为什么要尝试最新版本的玻璃鱼？请编辑您的问题以提供一个。@Selaron问题似乎是因为有时

@EJB

注释无法识别引用的外观。但我不知道为什么