More info >From the Jakarta Commons user list...
This problem is caused when you have *all* of the following true: * child-first classloading order selected in child classloader * code in child classloader that calls JCL * commons-logging.jar available via child classloader * code in shared classloader that calls JCL * commons-logging.jar available via shared classloader Because you have code in the shared classloader that calls JCL, you *must* deploy commons-logging.jar at the shared level. So the simplest fix is to delete the commons-logging.jar from the child classloader. The downside of this is that all your logging config then becomes "global", ie you need to configure logging using a config file at the shared level, and webapps share the same logging instance. But I don't think you really care about logging in this case do you? Regards, Simon Ok but within an ant build in eclipse, where do these terms line up? How do we determine "child-first" classloading in an ant build if we can? In an ant build, what is the shared classloader and what is the child class loader? Specifically where should commons-logging.jar be and where should it NOT be? Michael Oliver CTO Alarius Systems LLC 6800 E. Lake Mead Blvd, #1096 Las Vegas, NV 89156 Phone:(702)643-7425 Fax:(702)974-0341 *Note new email changed from [EMAIL PROTECTED] -----Original Message----- From: Michael Oliver [mailto:[EMAIL PROTECTED] Sent: Friday, May 20, 2005 10:54 AM To: user@ant.apache.org Subject: axis-java2wsdl LogFactory classloader problem I have created an ant task as follows: <path id="compile.classpath"> <pathelement path ="${webinf.dir}/lib/commons-beanutils.jar"/> <pathelement path ="${webinf.dir}/lib/commons-digester.jar"/> <pathelement path ="${webinf.dir}/lib/commons-logging.jar"/> <pathelement path ="${webinf.dir}/lib/AJContentClient.jar"/> <pathelement path ="${webinf.dir}/lib/AJRegistries.jar"/> <pathelement path ="${webinf.dir}/lib/AlariusESB.jar"/> <pathelement path ="${webinf.dir}/lib/log4j-1.2.8.jar"/> <pathelement path ="${webinf.dir}/lib/junit.jar"/> <pathelement path ="${webinf.dir}/lib/struts.jar"/> <pathelement path = "${webinf.dir}/lib/standard.jar"/> <pathelement path ="${webinf.dir}/classes"/> <pathelement path ="${classpath.external}"/> <pathelement path ="${classpath}"/> </path> <target name="axis-java2wsdl"> <echo message="Building wsdl for ${project.distname} at ${local.wsdl}}"/> <axis-java2wsdl classname="com.alarius.assignments.actions.SaveAssignmentForm" style= "DOCUMENT" namespace= "urn:http://alariussystemsllc.com/AJCCWebService/"; location= "http://localhost:8080/AlariusAssignments/services/"; output="AlariusAssignments.wsdl" > <classpath> <pathelement path ="${webinf.dir}/classes"/> </classpath> <classpath refid="compile.classpath"/> </axis-java2wsdl > </target> commons-logging and log4j are in the compile.classpath When I run this target I get axis-java2wsdl: [echo] Building wsdl for AlariusAssignments at C:\Java\ArchivedWorkspaces\AlariusAssignments\AlariusAssignments.wsdl} [axis-java2wsdl] Java2WSDL com.alarius.assignments.actions.SaveAssignmentForm [axis-java2wsdl] java.lang.ExceptionInInitializerError [axis-java2wsdl] at java.lang.Class.forName0(Native Method) ... [axis-java2wsdl] Caused by: 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 [axis-java2wsdl] at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImp l.java:532)... So researching this I find that the "Log4JLogger does not implement Log" is caused by a classloader problem. So I found in the eclipse ant runtime preferences Global Entries, both the commons-logging and log4j jars. So I removed them from there and ran ant on that target again... axis-java2wsdl: [echo] Building wsdl for AlariusAssignments at C:\Java\ArchivedWorkspaces\AlariusAssignments\AlariusAssignments.wsdl} [axis-java2wsdl] java.lang.NoClassDefFoundError: org.apache.commons.logging.LogFactory [axis-java2wsdl] at org.apache.axis.components.logger.LogFactory.class$(LogFactory.java:84) ... Huh??? If the ant runtime is loading the commons-logging and log4j jars and that causes a classloader sequence problem, then removing them from there and leaving the ones in the compile.classpath should NOT cause a NoClassDefFoundError. How can it be that one way it doesn't find LogFactory and the other way it has a classloader sequence problem? Conversely if ant needs to load them and the ant axis task also needs to load them, how do I ensure they are loaded in the proper sequence to avoid the conflict? Michael Oliver CTO Alarius Systems LLC 6800 E. Lake Mead Blvd, #1096 Las Vegas, NV 89156 Phone:(702)643-7425 Fax:(702)974-0341 *Note new email changed from [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
