The text of your question is not very clear, at least to me. Are you observing a logging problem or a problem with the application itself?
Which version of the JDK are you using?
By the looks of your stack trace, it seems that log4j is trying to log an exception. Let us call this exception E0. From what I could gather from your message, it seems E0's stack trace is empty. This causes log4j to throw the NullPointer exception included in your message. Log4j does not expect an exception with an empty stack trace and barfs a NullPointer.
Would it be possible for you to provide more information on E0, for example a stack trace of E0?
Thanks in advance,
At 12:41 PM 8/22/2003 -0500, [EMAIL PROTECTED] wrote:
Sorry for the broad question but was wondering if any has something similar.
We are using jboss-3.0.4_tomcat-4.0.6 bundle and sending our appliction logs to it's internal log4j.
I know this may be a Jboss issue but...
We throw our own Exception from a session EJB and end up catching it in the Struts Layer, logging the error and displaying a message based on the resource key supplied in the Root Exception. We do this type of thing throughout the application with out a problem.
At some point a NullPointerException is thrown that overrides the original exception.
I have isolated to the logging area because if shut off logging (set the level to FATAL) the problem goes away and we see the expected message.
Has anyone seen this before?
java.lang.NullPointerException
at java.io.Writer.write(Writer.java:126)
at org.apache.log4j.helpers.QuietWriter.write(QuietWriter.java:39)
at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:299)
at org.apache.log4j.WriterAppender.append(WriterAppender.java:150)
at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:221)
at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:57)
at org.apache.log4j.Category.callAppenders(Category.java:187)
at org.apache.log4j.Category.forcedLog(Category.java:372)
at org.apache.log4j.Category.log(Category.java:834)
at org.jboss.logging.Logger.info(Logger.java:158)
at org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:391)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:208)
at org.jboss.ejb.StatefulSessionContainer.invoke(StatefulSessionContainer.java:380)
at org.jboss.ejb.Container.invoke(Container.java:712)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:517)
at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:98)
at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:102)
at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:77)
at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:80)
at org.jboss.proxy.ejb.StatefulSessionInterceptor.invoke(StatefulSessionInterceptor.java:117)
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:76)
at $Proxy656.saveCurrentTransferAdjustment(Unknown Source)
at com.nlg.ar.common.interfaces.ArServiceImpl.saveCurrentTransferAdjustment(ArServiceImpl.java:1260)
at com.nlg.ar.web.customer.action.CustomerAdjSaveTransferAction.executeAction(CustomerAdjSaveTransferAction.java:45)
at com.nlg.ar.web.common.action.ArAuthenticatedAction.execute(ArAuthenticatedAction.java:56)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:465)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1349)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:683)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:431)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:355)
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1033)
at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:283)
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:436)
at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:326)
at org.apache.struts.action.RequestProcessor.processActionForward(RequestProcessor.java:401)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1349)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
at java.lang.Thread.run(Thread.java:534)
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