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http://issues.apache.org/bugzilla/show_bug.cgi?id=33465 Summary: StandardSession.removeAttriube throws NullPointerException Product: Tomcat 4 Version: 4.1.30 Platform: PC OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: Catalina AssignedTo: tomcat-dev@jakarta.apache.org ReportedBy: [EMAIL PROTECTED] from time to time i find the following error messages in the log-files of my production system: java.lang.NullPointerException at org.apache.catalina.session.StandardSession.removeAttribute(Ljava.lang.String;Z)V(StandardSession.java:1157) at org.apache.catalina.session.StandardSession.removeAttribute(Ljava.lang.String;)V(StandardSession.java:1103) at org.apache.catalina.session.StandardSessionFacade.removeAttribute(Ljava.lang.String;)V(StandardSessionFacade.java:201) at org.apache.catalina.session.StandardSessionFacade.removeAttribute(Ljava.lang.String;)V(StandardSessionFacade.java:201) unfortunatly i could never cause the error by myself, i just see it happen by looking in the log-files. digging into the source-code of removeAttribute points to these lines: // Notify interested application event listeners Context context = (Context) manager.getContainer(); Object listeners[] = context.getApplicationListeners(); the null-pointer-exception is thrown in the line that calls manager.getContainer(), so it seems manager is null, when it comes to the exception. i don't know how manager can get null -- maybe i have some miscounfiguration? so without understanding the details or the implementation, i looked at the other methods that access manager. most of then check the manager-variable for a null-value before they access it. so maybe this should be done here too? -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
