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From "Molitor, Stephen" <SMoli...@erac.com>
Subject Problem with ejbjar, log4j
Date Thu, 14 Feb 2002 20:27:50 GMT
I'm having trouble using the ejbjar task to build EJB's that use Log4J.  I'm
using Ant 1.4, with WebLogic 5.1.  I get an error that says:

java.lang.NoClassDefFoundError: Lorg/apache/log4j/Category;

I do have log4j.jar in my classpath.  For grins, I also put log4j.jar under
ant/lib.  'Lorg' is not mentioned anywhere in my classpath.  Any ideas?
Thanks!  Here's the complete error message, followed by the snippet from our
build.xml file that invokes ejbjar:

ejb_jar:
   [ejbjar] building CompPlanEJB.jar with 12 files
     [ejbc] java.lang.NoClassDefFoundError: Lorg/apache/log4j/Category;
     [ejbc]     at java.lang.Class.getFields0(Native Method)
     [ejbc]     at java.lang.Class.getDeclaredFields(Class.java:998)
     [ejbc]     at
weblogic.ejb.compliance.BeanClassChecker.checkEJBContextIsNotTransient(BeanC
lassChecker.java:271)
     [ejbc]     at java.lang.reflect.Method.invoke(Native Method)
     [ejbc]     at
weblogic.ejb.compliance.EJB11ComplianceChecker.checkEJB(EJB11ComplianceCheck
er.java:107)
     [ejbc]     at
weblogic.ejb.compliance.EJB11ComplianceChecker.checkDeploymentUnit(EJB11Comp
lianceChecker.java:87)
     [ejbc]     at
weblogic.ejb.ejbc.EJBCompiler.complianceCheckJar(EJBCompiler.java:302)
     [ejbc]     at
weblogic.ejb.ejbc.EJBCompiler.checkCompliance(EJBCompiler.java:251)
     [ejbc] [EJB]: Unexpected exception java.lang.NoClassDefFoundError:
Lorg/apache/log4j/Category;
     [ejbc]     at
weblogic.ejb.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:159)
     [ejbc]     at weblogic.ejbc.runBody(ejbc.java:307)
     [ejbc]     at weblogic.utils.compiler.Tool.run(Tool.java:80)
     [ejbc]     at weblogic.ejbc.main(ejbc.java:353)
     [ejbc] java.lang.NoClassDefFoundError: Lorg/apache/log4j/Category;
     [ejbc]     at java.lang.Class.getFields0(Native Method)
     [ejbc]     at java.lang.Class.getDeclaredFields(Class.java:998)
     [ejbc]     at
weblogic.ejb.compliance.BeanClassChecker.checkEJBContextIsNotTransient(BeanC
lassChecker.java:271)
     [ejbc]     at java.lang.reflect.Method.invoke(Native Method)
     [ejbc]     at
weblogic.ejb.compliance.EJB11ComplianceChecker.checkEJB(EJB11ComplianceCheck
er.java:107)
     [ejbc]     at
weblogic.ejb.compliance.EJB11ComplianceChecker.checkDeploymentUnit(EJB11Comp
lianceChecker.java:87)
     [ejbc] [EJB]: Unexpected exception java.lang.NoClassDefFoundError:
Lorg/apache/log4j/Category;
     [ejbc]     at
weblogic.ejb.ejbc.EJBCompiler.complianceCheckJar(EJBCompiler.java:302)
     [ejbc]     at
weblogic.ejb.ejbc.EJBCompiler.checkCompliance(EJBCompiler.java:251)
     [ejbc]     at
weblogic.ejb.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:159)
     [ejbc]     at weblogic.ejbc.runBody(ejbc.java:307)
     [ejbc]     at weblogic.utils.compiler.Tool.run(Tool.java:80)
     [ejbc]     at weblogic.ejbc.main(ejbc.java:353)
     [ejbc] [EJB]: Creating output
jar:D:\javaweb\fleetservices\edgeweb\working\dist\ejb\CompPlanEJB.jar


Our ejbjar target:

 <target name="ejb_jar" depends="init,fsys_jar,compile_source"
          description="builds the jar file for ejb">
          <ejbjar srcdir="${build_dir}"
                  descriptordir="${webapps_dir}/commissions/META-INF"
                  classpath="${edgeweb_classpath}"
                  basejarname="${ejb_jar_name}">      
            <weblogic destdir="${ejb_jar_dir}"                      
                      compiler="javac"
                      classpath="${edgeweb_classpath}"
                      keepgenerated="true"/>              
            <dtd publicId="-//BEA Systems, Inc.//DTD WebLogic 5.1.0 EJB//EN"
 
location="${wl_home}/classes/weblogic/ejb/deployment/xml/weblogic-ejb-jar.dt
d"/>
           </ejbjar>
  </target> 


Thanks!  

Steve Molitor
smolitor@erac.com


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