java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at javax.faces.webapp.FacesServlet.init(FacesServlet.java:144)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatdSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java118)
at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubIpl.java:869)
at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStuImpl.java:848)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubmpl.java:787)
at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpljava:518)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIpl.java:362)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIpl.java:305)
at weblogic.servlet.jsp.PageContextImpl.forward(PageContextImpl.java:15)
at jsp_servlet.__index._jspService(__index.java:127)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.ru(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIpl.java:305)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatdSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSrvletContext.java:3635)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)

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