NullPointerException Received When Trying To View Logfiles (Doc ID 1546010.1)

Last updated on JULY 20, 2024

Applies to:

Symptoms

A NullPointerException is thrown when trying to view Logfiles.
This only occurs when a log file is so big, that the timeout is invoked.

The NPE encountered then is similar to this:

At 2012-11-30 09:09:09.755

java.lang.NullPointerException

java.lang.NullPointerException
at glog.server.logview.SystemLogEntry.compareTo(SystemLogEntry.java:87)
at java.util.TreeMap.cmp(TreeMap.java:2273)
at java.util.TreeMap.put(TreeMap.java:2388)
at java.util.TreeSet.add(TreeSet.java:238)
at glog.webserver.logview.SystemLog.sortEntries(SystemLog.java:212)
at glog.webserver.logview.SystemLog.getDocument(SystemLog.java:79)
at glog.webserver.logview.LogViewerServlet.getDocument(LogViewerServlet.java:16)
at glog.webserver.util.AbstractServletProducer.process(AbstractServletProducer.java:75)
at glog.webserver.util.BaseServlet.service(BaseServlet.java:950)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at glog.webserver.screenlayout.FrameInterceptFilter.doFilter(FrameInterceptFilter.java:29)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at glog.webserver.session.ParameterValidation.doFilter(ParameterValidation.java:29)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at glog.webserver.screenlayout.ClientSessionTracker.doFilter(ClientSessionTracker.java:72)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at glog.webserver.util.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:44)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.dbschenker.simba.ltpaFilter.LtpaFilter.doFilter(LtpaFilter.java:331)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:619)

Cause

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