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

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java.lang.NullPointerException:
at oracle.security.sso.server.policy.FilePolicyManager.getAuthLevel(FilePolicyManager.java:374)
at oracle.security.sso.server.auth.AuthDirector.getAuthLevel(AuthDirector.java:199)
at oracle.security.sso.server.ui.SSOLoginServlet.doPost(SSOLoginServlet.java:336)
at oracle.security.sso.server.ui.SSOLoginServlet.doGet(SSOLoginServlet.java:298)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:834)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:340)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:228)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
at java.lang.Thread.run(Thread.java:534)

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