deploy的问题,请各位指点

下面是错误日志：
Compilation failed.
at com.sun.ejb.codegen.GeneratorDriver.compileClasses(GeneratorDriver.java:319)
at com.sun.ejb.codegen.GeneratorDriver.compileAndRmic(GeneratorDriver.java:203)
at com.sun.ejb.codegen.GeneratorDriver.preDeploy(GeneratorDriver.java:872)
at com.sun.enterprise.tools.deployment.backend.JarInstallerImpl.deployEjbs(JarInstallerImpl.java:709)
at com.sun.enterprise.tools.deployment.backend.JarInstallerImpl.deployApplication(JarInstallerImpl.java:216)
at com.sun.enterprise.tools.deployment.backend.JarInstallerImpl.deployApplication(JarInstallerImpl.java:124)
at org.omg.stub.com.sun.enterprise.tools.deployment.backend._JarInstallerImpl_Tie._invoke(Unknown Source)
at com.sun.corba.ee.internal.corba.ServerDelegate.dispatch(ServerDelegate.java:334)
at com.sun.corba.ee.internal.iiop.ORB.process(ORB.java:272)
at com.sun.corba.ee.internal.iiop.RequestProcessor.process(RequestProcessor.java:84)
at com.sun.corba.ee.internal.orbutil.ThreadPool$PooledThread.run(ThreadPool.java:99)