java.lang.NullPointerException

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    • java.lang.NullPointerException at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:488) at java.lang.StringBuffer.append(StringBuffer.java:302) at org.apache.log4j.helpers.ISO8601DateFormat.format(ISO8601DateFormat.java:132) at java.text.DateFormat.format(DateFormat.java:314) at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444) at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:64) at org.apache.log4j.PatternLayout.format(PatternLayout.java:503) at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:301) at org.apache.log4j.WriterAppender.append(WriterAppender.java:159) at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:230) at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:65) at org.apache.log4j.Category.callAppenders(Category.java:203) at org.apache.log4j.Category.forcedLog(Category.java:388) at org.apache.log4j.Category.log(Category.java:853) at org.apache.commons.logging.impl.Log4JLogger.info(Log4JLogger.java:133) at org.apache.catalina.cluster.session.DeltaManager.start(DeltaManager.java:975) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4137) at org.apache.catalina.core.StandardContext.reload(StandardContext.java:2990) at org.apache.catalina.manager.ManagerServlet.reload(ManagerServlet.java:906) at org.apache.catalina.manager.HTMLManagerServlet.reload(HTMLManagerServlet.java:473) at org.apache.catalina.manager.HTMLManagerServlet.doGet(HTMLManagerServlet.java:98) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.cluster.tcp.ReplicationValve.invoke(ReplicationValve.java:346) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:833) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:639) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285) at java.lang.Thread.run(Thread.java:595)
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