hi, i'm using tomcat with apache on RedHat 7.0 i'm using a WebPerformance software to test my webpage with multiple users (100 users) in the beginning it all works good but after about 15 minutes of stress test i start getting this error with tomcat . *************************************************** HANDLER THREAD PROBLEM: java.lang.NullPointerException java.lang.NullPointerException at org.apache.tomcat.service.connector.AJP12ResponseAdapter.sendStatus(Ajp12Con nectionHandler.java:439) at org.apache.tomcat.service.http.HttpResponseAdapter.endHeaders(HttpResponseAd apter.java(Compiled Code)) at org.apache.tomcat.core.BufferedServletOutputStream.sendHeaders(BufferedServl etOutputStream.java:127) at org.apache.tomcat.core.BufferedServletOutputStream.reallyFlush(BufferedServl etOutputStream.java(Compiled Code)) at org.apache.tomcat.core.ResponseImpl.finish(ResponseImpl.java(Compiled Code)) at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection (Ajp12ConnectionHandler.java:158) at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java(Com piled Code)) *************************************************** Does anyone know what may have caused this error and is there anyway to fix it ? thanks Georges