Re: LogConfigurationException while running STRUTS with two applicationsin i Planet

[Kent Sølvsten Rasmussen <ke...@aarhusmail.dk>]

In later versions, commons-logging has been separated in 2 jarfiles, 1. commons-logging.jar and 2. commons-logging-api.jar. This might be the case here. Maybe your are using a commons-logging-api from the applicationserver itself.

Try putting a commons-logging-api.jar inside your webapps too.

(btw this is actually a USER question)

Kent

vshaiva@optonline.net wrote:
> We are running two STRUTS applications using Log4j in
> iPlanet 6.5 Application servers. We have deployed struts,
> commons-beanutils, common-collections, commons-digester,
> commons-logging, commons-validator and  log4j under the
> WEB-INF/lib and packaged them as separate ear files for each
> application separately. The Action servlet in each
> application is deployed with a different name. Each
> application has an initializer servlet that is invoked at
> application server startup and load the Log4J
> configuration.
> 
> The above works fine with only one application and also on
> occasion with both applications. However, we are getting
> intermittent errors when running both applications together
> when the requested JSP fails to load with an error in the
> application server kjs logs. We have observed the following
> pattern of errors: (with debugging turned on)
> 
> Always starts with one LogConfigurationException (see Error
> #1 below). This error does not always happen at startup. It
> can happen even after some usage of the applications. Once
> this error has occured, we get a
> java.lang.NoClassDefFoundError  (see Error #2 below) when 
> the JSP page load occurs in the application. 
> 
> Has anyone seen this error ? Any insight would be much
> appreciated.
> 
> 
> Error #1
> ------------
> Loading servlet: App1Action
> [06/Mar/2004 13:01:39:3] error: Exception:
> SERVLET-execution_failed: Error in executing servlet
> EAMSAction: java.lang.ExceptionInInitializerError 
> Exception Stack Trace: 
> java.lang.ExceptionInInitializerError:
> org.apache.commons.logging.LogConfigurationException:
> org.apache.commons.logging.LogConfigurationException: 
> org.apache.commons.logging.LogConfigurationException: 
> Class org.apache.commons.logging.impl.Log4JLogger does not
> implement Log
> 	at
> org.apache.commons.logging.impl.LogFactoryImpl.newInstance(L
> ogFactoryImpl.java:532)
> 	at
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(L
> ogFactoryImpl.java:272)
> 	at
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(L
> ogFactoryImpl.java:246)
> 	at
> org.apache.commons.logging.LogFactory.getLog(LogFactory.java
> :395)
> 	at
> org.apache.struts.action.ActionServlet.<clinit>(ActionServle
> t.java:375)
> 	at java.lang.Class.newInstance0(Native Method)
> 	at java.lang.Class.newInstance(Class.java:232)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRepository.
> loadServlet(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRepository.
> createInstance(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.crea
> teServletInfo(ServletRunner.java:1237)
> 	at
> com.netscape.server.servlet.servletrunner.AppInfo.preLoadSer
> vlets(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.AppInfo.resetServl
> ets(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.AppInfo.<init>(Unk
> nown Source)
> 	at
> com.netscape.server.servlet.servletrunner.ServletModule.getA
> ppInfo(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.getA
> ppInfo(ServletRunner.java:1546)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.exec
> ute(ServletRunner.java:986)
> 	at
> com.kivasoft.applogic.AppLogic.execute(AppLogic.java:152)
> 	at
> com.kivasoft.applogic.AppLogic.execute(AppLogic.java:86)
> 	at com.kivasoft.thread.ThreadBasic.run(Native Method)
> 	at java.lang.Thread.run(Thread.java:479)
> 
> MessageHeaders:setHeaderField(): Invoking headers.put(name,
> value)
> 
> [06/Mar/2004 13:01:39:3] error: APPLOGIC-caught_exception:
> Caught Exception: 
> java.lang.ClassCastException:
> java.lang.ExceptionInInitializerError
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.repo
> rtError(ServletRunner.java:1576)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.exec
> ute(ServletRunner.java:1002)
> 	at
> com.kivasoft.applogic.AppLogic.execute(AppLogic.java:152)
> 	at
> com.kivasoft.applogic.AppLogic.execute(AppLogic.java:86)
> 	at com.kivasoft.thread.ThreadBasic.run(Native Method)
> 	at java.lang.Thread.run(Thread.java:479)
> 
> 
> Error #2: This happens when the application is accessing a
> page.
> ------------------------------------------------------------
> ----------------------------------
> Loading servlet: App1Action
> [06/Mar/2004 13:38:23:7] error: Exception:
> SERVLET-execution_failed: Error in executing servlet
> App1Action: java.lang.NoClassDefFoundError 
> Exception Stack Trace: 
> java.lang.NoClassDefFoundError
> 	at java.lang.Class.newInstance0(Native Method)
> 	at java.lang.Class.newInstance(Class.java:232)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRepository.
> loadServlet(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRepository.
> createInstance(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.crea
> teServletInfo(ServletRunner.java:1237)
> 	at
> com.netscape.server.servlet.servletrunner.AppInfo.preLoadSer
> vlets(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.AppInfo.resetServl
> ets(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.AppInfo.<init>(Unk
> nown Source)
> 	at
> com.netscape.server.servlet.servletrunner.ServletModule.getA
> ppInfo(Unknown Source)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.getA
> ppInfo(ServletRunner.java:1546)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.exec
> ute(ServletRunner.java:986)
> 	at
> com.kivasoft.applogic.AppLogic.execute(AppLogic.java:152)
> 	at
> com.kivasoft.applogic.AppLogic.execute(AppLogic.java:86)
> 	at com.kivasoft.thread.ThreadBasic.run(Native Method)
> 	at java.lang.Thread.run(Thread.java:479)
> 
> MessageHeaders:setHeaderField(): Invoking headers.put(name,
> value)
> 
> [06/Mar/2004 13:38:23:7] error: APPLOGIC-caught_exception:
> Caught Exception: 
> java.lang.ClassCastException:
> java.lang.NoClassDefFoundError
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.repo
> rtError(ServletRunner.java:1576)
> 	at
> com.netscape.server.servlet.servletrunner.ServletRunner.exec
> ute(ServletRunner.java:1002)
> 	at
> com.kivasoft.applogic.AppLogic.execute(AppLogic.java:152)
> 	at
> com.kivasoft.applogic.AppLogic.execute(AppLogic.java:86)
> 	at com.kivasoft.thread.ThreadBasic.run(Native Method)
> 	at java.lang.Thread.run(Thread.java:479)
> 
> 
> 
> ------------------------------------------------------------
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