이클립스 프로젝트를 가상 시스템으로 가져옵니다. 라이브러리를 변경했습니다 (경로를 변경하고이 VM에 C :가 있고 D :가 없으므로 프로젝트를 다시 가져옵니다). Tomcat이로드되지 않고 이것을 보여줍니다. 모든 라이브러리를 가져오고 persistence.xml 파일이 ok로 구성됩니다.Tomcat 7이 javax.persistence를로드 할 수 없습니다.
[2014-07-21 12:15:43] ERROR (InicializacionListener.java:142) - Excepcion cerrando DAO: java.lang.NullPointerException
java.lang.NullPointerException
at com.dominion.procop.listeners.InicializacionListener.contextInitialized(InicializacionListener.java:140)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4973)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5467)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
jul 21, 2014 12:15:43 PM org.apache.catalina.core.StandardContext listenerStart
Grave: Excepción enviando evento inicializado de contexto a instancia de escuchador de clase com.dominion.procop.listeners.InicializacionListener
java.lang.NoClassDefFoundError: javax/persistence/PersistenceException
at com.dominion.procop.listeners.InicializacionListener.contextInitialized(InicializacionListener.java:126)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4973)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5467)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: javax.persistence.PersistenceException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
... 10 more
jul 21, 2014 12:15:43 PM org.apache.catalina.core.StandardContext startInternal
Grave: Error listenerStart
jul 21, 2014 12:15:43 PM org.apache.catalina.core.StandardContext startInternal
Grave: Falló en arranque del Contexto [/MyData] debido a errores previos
[2014-07-21 12:15:43] WARN (InicializacionListener.java:53) - >>>>>> FINALIZANDO SERVICIO <<<<<<
[2014-07-21 12:15:43] INFO (Sincronizador.java:117) - Sincronizador - FINAL
jul 21, 2014 12:15:43 PM org.apache.coyote.AbstractProtocol startjava.lang.Thread.run(Unknown Source)
http://stackoverflow.com/questions/12932851/java-lang-classnotfoundexception-javax-persistence-entity –