Erro FacesException

Alguém saberia dizer a causa e a solução para este erro, ou mostrando somente esta descrição do erro seria impossível dizer uma solução?

Valeu, obrigado.

javax.faces.FacesException: javax.servlet.ServletException 

javax.faces.FacesException: javax.servlet.ServletException
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:426)
	at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
	at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)
	at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
	at com.evermind.server.http.EvermindFilterChain.doFilter(ContextFilter.java:157)
	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:620)
	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:369)
	at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:865)
	at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:447)
	at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:215)
	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:117)
	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:110)
	at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
	at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239)
	at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34)
	at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880)
	at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
	at java.lang.Thread.run(Thread.java:595)
Caused by: javax.servlet.ServletException
	at com.evermind.server.http.EvermindPageContext.handlePageThrowable(EvermindPageContext.java:809)
	at com.evermind.server.http.EvermindPageContext.handlePageException(EvermindPageContext.java:756)
	at _web._sisunidade._atualizaunidade._gerenciaUnidades._jspService(_gerenciaUnidades.java:875)
	at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)
	at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:462)
	at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:598)
	at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:522)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:712)
	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:369)
	at com.evermind.server.http.ServletRequestDispatcher.unprivileged_forward(ServletRequestDispatcher.java:286)
	at com.evermind.server.http.ServletRequestDispatcher.access$100(ServletRequestDispatcher.java:50)
	at com.evermind.server.http.ServletRequestDispatcher$2.oc4jRun(ServletRequestDispatcher.java:192)
	at oracle.oc4j.security.OC4JSecurity.doPrivileged(OC4JSecurity.java:283)
	at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:197)
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:416)
	... 20 more

O que você está fazendo que gera este erro.?

:okok: