JSP org.eclipse.persistence.platform.database不存在错误

I am getting the following trace

我得到以下痕迹

 [#|2014-04-01T14:56:57.824+0200|WARNING|glassfish3.1|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=215;_ThreadName=Thread-1;|StandardWrapperValve[ServletExample]:
 PWC1406: Servlet.service() for servlet ServletExample threw exception
 org.apache.jasper.JasperException: PWC6033: Error in Javac compilation
 for JSP

 PWC6199: Generated servlet error: package
 org.eclipse.persistence.platform.database does not exist
 [