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java.lang.ClassCastException at com.sun.corba.se.internal.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:293) at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:134) at Login.Authentication1(Login.java:155) at Login.doGet(Login.java:119) at Login.doPost(Login.java:141) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.StandardWrapperValve.invokeServletService(StandardWrapperValve.java:720) at org.apache.catalina.core.StandardWrapperValve.access$000(StandardWrapperValve.java:118) at org.apache.catalina.core.StandardWrapperValve$1.run(StandardWrapperValve.java:278) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:274) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:212) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505) at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:157)