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    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

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via Oracle Community by 1000919, 1 year ago
java.lang.NullPointerException[[
via Oracle Community by nvzhukov, 1 year ago
java.lang.NullPointerException Supplemental Detail
java.lang.NullPointerException: 	at java.util.Hashtable.put(Hashtable.java:775)	at oracle.xdo.servlet.security.LDAPSecurityHandler.getLDAPPrincipal(LDAPSecurityHandler.java:197)	at oracle.xdo.servlet.security.LDAPSecurityHandler.getPrincipal(LDAPSecurityHandler.java:76)	at jsp_servlet.__login._jspService(__login.java:535)	at weblogic.servlet.jsp.JspBase.service(JspBase.java:34)	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.xdo.servlet.metadata.track.MostRecentFilter.doFilter(MostRecentFilter.java:64)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.xdo.servlet.security.SecurityFilter.doFilter(SecurityFilter.java:257)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.xdo.servlet.init.InitCheckingFilter.doFilter(InitCheckingFilter.java:63)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)	at java.security.AccessController.doPrivileged(AccessController.java:284)	at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)	at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)	at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)	at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)	at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)	at java.security.AccessController.doPrivileged(AccessController.java:284)	at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)	at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)	at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)	at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)	at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)	at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)