我正在使用 Java SE 1.8（内部版本 1.8.0_66-b17）的 ubuntu 14.04 服务器上运行 tomcat 7.0.52。Tomcat 正在运行，管理器工作，我部署了两个战争 - 一个 Vaadin 应用程序和 THREDDS 战争版本 4.6（请参阅 unidata TDS）。两种应用程序都有效。
现在我正在将 TomEE drop-in war (1.7.3) 添加到 tomcat7（我想将来在我的 Vaadin 应用程序中添加 CDI 和其他 Java EE 功能）。当我重新启动 tomcat7 时，tomee 工作（我可以打开 /tomee 页面），但 tomcat 无法再部署 THREDDS 战争。
这是 catalina.out 的输出：
INFO: ------------------------- localhost -> /thredds
Dec 10, 2015 12:56:14 PM org.apache.catalina.loader.WebappLoader startInternal
SEVERE: LifecycleException
java.lang.IllegalAccessError
at org.apache.tomee.catalina.LazyStopWebappClassLoader.<init>(LazyStopWebappClassLoader.java:75)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at org.apache.catalina.loader.WebappLoader.createClassLoader(WebappLoader.java:730)
at org.apache.catalina.loader.WebappLoader.startInternal(WebappLoader.java:582)
at org.apache.catalina.loader.VirtualWebappLoader.startInternal(VirtualWebappLoader.java:191)
at org.apache.tomee.catalina.ProvisioningWebappLoader.startInternal(ProvisioningWebappLoader.java:109)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.tomee.catalina.LazyStopLoader.start(LazyStopLoader.java:68)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5332)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Dec 10, 2015 12:56:14 PM org.apache.catalina.core.ContainerBase addChildInternal
SEVERE: ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/thredds]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [ProvisioningWebappLoader[/thredds]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.tomee.catalina.LazyStopLoader.start(LazyStopLoader.java:68)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5332)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 10 more
Caused by: org.apache.catalina.LifecycleException: start:
at org.apache.catalina.loader.WebappLoader.startInternal(WebappLoader.java:630)
at org.apache.catalina.loader.VirtualWebappLoader.startInternal(VirtualWebappLoader.java:191)
at org.apache.tomee.catalina.ProvisioningWebappLoader.startInternal(ProvisioningWebappLoader.java:109)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 13 more
Caused by: java.lang.IllegalAccessError
at org.apache.tomee.catalina.LazyStopWebappClassLoader.<init>(LazyStopWebappClassLoader.java:75)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at org.apache.catalina.loader.WebappLoader.createClassLoader(WebappLoader.java:730)
at org.apache.catalina.loader.WebappLoader.startInternal(WebappLoader.java:582)
... 16 more
Dec 10, 2015 12:56:14 PM org.apache.catalina.startup.HostConfig deployWAR
SEVERE: Error deploying web application archive /var/lib/tomcat7/webapps/thredds.war
java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/thredds]]
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:904)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
这是 localhost.2015-... 的输出：
Dec 10, 2015 12:56:07 PM org.apache.catalina.core.StandardContext listenerStop
SEVERE: Exception sending context destroyed event to listener instance of class websocket.drawboard.DrawboardContextListener
java.lang.NoClassDefFoundError: javax/websocket/Endpoint
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2944)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1208)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1688)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1569)
at websocket.drawboard.DrawboardContextListener.contextDestroyed(DrawboardContextListener.java:32)
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:5014)
at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5659)
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1564)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: javax.websocket.Endpoint
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1718)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1569)
... 17 more
Dec 10, 2015 12:56:07 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextDestroyed()
Dec 10, 2015 12:56:07 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextDestroyed()
Dec 10, 2015 12:56:10 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
Dec 10, 2015 12:56:10 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
Dec 10, 2015 12:56:10 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@54187756')
为什么添加 tomee 时缺少 javax.websocket.Endpoint 类？我必须更改 tomee 的类路径吗？有什么建议么？