Re: Ant cgen task not working after following tutorial

Mon, 25 May 2009 01:53:52 -0700 

Hi Joseph,

which version of Cayenne is that?

Andrus


On May 25, 2009, at 11:21 AM, Joseph Wamicha wrote:


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:

sysad...@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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