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From Joseph Wamicha <jwami...@gmail.com>
Subject Ant cgen task not working after following tutorial
Date Mon, 25 May 2009 08:21:42 GMT
Hi,

I'm currently experimenting with cayenne; it's looking good.

I have however run into problems while running the ant cgen task. I'm 
not sure what's going wrong with ant cgen. I would be grateful for any 
help on this. Please see my ant task below:

<path id="full.classpath">
       <fileset dir="lib" />
   </path>
     <!-- Custom apache cayenne ant tasks...-->
   <typedef resource="org/apache/cayenne/tools/antlib.xml">
      <classpath refid="full.classpath"/>
   </typedef>
     <target name="classgen">
     <cgen map="src/PersistenceMap.map.xml" destDir="test"
       usepkgpath="true" superpkg="com.plugin.persistence" />
   </target>

and inside my lib directory I have the cayenne.jar file

When I now run ant classgen, I get the following error:

sysadmin@astrodon$ ant classgen
Buildfile: build.xml

classgen:
    [cgen] Error generating classes: Problem initializing template 
loader: org.apache.cayenne.gen.ClassGeneratorResourceLoader
    [cgen] Error is: java.lang.ClassNotFoundException: 
org.apache.cayenne.gen.ClassGeneratorResourceLoader
    [cgen]     at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    [cgen]     at java.security.AccessController.doPrivileged(Native 
Method)
    [cgen]     at 
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    [cgen]     at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
    [cgen]     at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    [cgen]     at 
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
    [cgen]     at java.lang.Class.forName0(Native Method)
    [cgen]     at java.lang.Class.forName(Class.java:169)
    [cgen]     at 
org.apache.velocity.runtime.resource.loader.ResourceLoaderFactory.getLoader(ResourceLoaderFactory.java:41)


    [cgen]     at 
org.apache.velocity.runtime.resource.ResourceManagerImpl.initialize(ResourceManagerImpl.java:142)


    [cgen]     at 
org.apache.velocity.runtime.RuntimeInstance.initializeResourceManager(RuntimeInstance.java:522)


    [cgen]     at 
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:227)
    [cgen]     at 
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:461)
    [cgen]     at 
org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:106)
    [cgen]     at 
org.apache.cayenne.gen.ClassGenerator.initializeClassTemplate(ClassGenerator.java:149) 

    [cgen]     at 
org.apache.cayenne.gen.ClassGenerator.<init>(ClassGenerator.java:94)
    [cgen]     at 
org.apache.cayenne.gen.MapClassGenerator.generateClassPairs_1_1(MapClassGenerator.java:222)


    [cgen]     at 
org.apache.cayenne.gen.MapClassGenerator.generateClassPairs(MapClassGenerator.java:199) 

    [cgen]     at 
org.apache.cayenne.gen.DefaultClassGenerator.execute(DefaultClassGenerator.java:98) 

    [cgen]     at 
org.apache.cayenne.tools.CayenneGenerator.processMap(CayenneGenerator.java:144) 

    [cgen]     at 
org.apache.cayenne.tools.CayenneGenerator.execute(CayenneGenerator.java:80)
    [cgen]     at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
    [cgen]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native 
Method)
    [cgen]     at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 

    [cgen]     at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 

    [cgen]     at java.lang.reflect.Method.invoke(Method.java:597)
    [cgen]     at 
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    [cgen]     at org.apache.tools.ant.Task.perform(Task.java:348)
    [cgen]     at org.apache.tools.ant.Target.execute(Target.java:357)
    [cgen]     at org.apache.tools.ant.Target.performTasks(Target.java:385)
    [cgen]     at 
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
    [cgen]     at 
org.apache.tools.ant.Project.executeTarget(Project.java:1306)
    [cgen]     at 
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) 

    [cgen]     at 
org.apache.tools.ant.Project.executeTargets(Project.java:1189)
    [cgen]     at org.apache.tools.ant.Main.runBuild(Main.java:758)
    [cgen]     at org.apache.tools.ant.Main.startAnt(Main.java:217)
    [cgen]     at 
org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
    [cgen]     at 
org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)

BUILD FAILED

What could be going wrong?

Thanks,
Joseph.

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