Re: Ant cgen task not working after following tutorial

Mon, 25 May 2009 04:04:00 -0700 

Hi Andrus,
I'll try this for cgen and use the swing gui modeller in the meantime. Thanks. 

Andrus Adamchik wrote:

I know nothing about cdef, but cgen works pretty well in all known 
environments.



The only thing I can think of is to check the classpath that you set 
on your file, and trim it to just Cayenne and its dependencies. I 
don't see task classpath in your logs. Maybe print it like this:


<property name="cp" refid="full.classpath"/>
<echo>${cp}</echo>

Andrus



On May 25, 2009, at 1:15 PM, Joseph Wamicha wrote:


Back to the original error :(


Could using the cdef class generation with ant version 1.7.1 be the 
problem?



Total time: 0 seconds
sysad...@astrodon:/mnt/sda3/EclipseWork/testpersistence$ ant -v classgen
Apache Ant version 1.7.1 compiled on November 10 2008
Buildfile: build.xml
Detected Java version: 1.6 in: /usr/lib/jvm/java-6-sun-1.6.0.13/jre
Detected OS: Linux

parsing buildfile /mnt/sda3/EclipseWork/testpersistence/build.xml 
with URI = file:/mnt/sda3/EclipseWork/testpersistence/build.xml

Project base dir set to: /mnt/sda3/EclipseWork/testpersistence

[antlib:org.apache.tools.ant] Could not load definitions from 
resource org/apache/tools/ant/antlib.xml. It could not be found.
parsing buildfile 
jar:file:/mnt/sda3/EclipseWork/testpersistence/lib/cayenne-server-3.0M5.jar!/org/apache/cayenne/tools/antlib.xml 
with URI = 
jar:file:/mnt/sda3/EclipseWork/testpersistence/lib/cayenne-server-3.0M5.jar!/org/apache/cayenne/tools/antlib.xml 


Build sequence for target(s) `classgen' is [classgen]

Complete build sequence is [classgen, prepare, clean, deploy, 
hsqldbgen, build, dist, ]


classgen:

   [cgen] Generating superclass file: 
/mnt/sda3/EclipseWork/testpersistence/test/com/persistence/_Config.java


BUILD FAILED

java.lang.Exception: Problem initializing template loader: 
org.apache.cayenne.gen.ClassGeneratorResourceLoader
Error is: java.lang.ClassNotFoundException: 
org.apache.cayenne.gen.ClassGeneratorResourceLoader

  at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
  at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
  at java.lang.Class.forName0(Native Method)
  at java.lang.Class.forName(Class.java:169)

  at 
org.apache.velocity.runtime.resource.loader.ResourceLoaderFactory.getLoader(ResourceLoaderFactory.java:41) 

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

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

  at 
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:227) 

  at 
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:461) 

  at 
org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:106)
  at 
org.apache.cayenne.gen.ClassGenerationAction.getTemplate(ClassGenerationAction.java:273) 

  at 
org.apache.cayenne.gen.ClassGenerationAction.execute(ClassGenerationAction.java:241) 

  at 
org.apache.cayenne.gen.ClassGenerationAction.execute(ClassGenerationAction.java:213) 

  at 
org.apache.cayenne.tools.CayenneGeneratorTask.execute(CayenneGeneratorTask.java:163) 

  at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)

  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

  at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 

  at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 


  at java.lang.reflect.Method.invoke(Method.java:597)

  at 
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) 


  at org.apache.tools.ant.Task.perform(Task.java:348)
  at org.apache.tools.ant.Target.execute(Target.java:357)
  at org.apache.tools.ant.Target.performTasks(Target.java:385)

  at 
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)

  at org.apache.tools.ant.Project.executeTarget(Project.java:1306)

  at 
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) 


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


  at 
org.apache.velocity.runtime.resource.loader.ResourceLoaderFactory.getLoader(ResourceLoaderFactory.java:56) 

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

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

  at 
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:227) 

  at 
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:461) 

  at 
org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:106)
  at 
org.apache.cayenne.gen.ClassGenerationAction.getTemplate(ClassGenerationAction.java:273) 

  at 
org.apache.cayenne.gen.ClassGenerationAction.execute(ClassGenerationAction.java:241) 

  at 
org.apache.cayenne.gen.ClassGenerationAction.execute(ClassGenerationAction.java:213) 

  at 
org.apache.cayenne.tools.CayenneGeneratorTask.execute(CayenneGeneratorTask.java:163) 

  at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)

  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

  at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 

  at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 


  at java.lang.reflect.Method.invoke(Method.java:597)

  at 
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) 


  at org.apache.tools.ant.Task.perform(Task.java:348)
  at org.apache.tools.ant.Target.execute(Target.java:357)
  at org.apache.tools.ant.Target.performTasks(Target.java:385)

  at 
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)

  at org.apache.tools.ant.Project.executeTarget(Project.java:1306)

  at 
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) 


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

Total time: 0 seconds
Andrus Adamchik wrote:

Yeah, in 3.0 you also need a VPP library (we should put it in 
lib/third-party I guess...). Anyways, you can get it from here:


http://sourceforge.net/projects/vpp

Andrus

On May 25, 2009, at 12:44 PM, Joseph Wamicha wrote:


I'm now trying with Cayenne 3.0M5. Please find the error logs below:


sysad...@astrodon:/mnt/sda3/EclipseWork/testpersistence$ ant -v 
classgen

Apache Ant version 1.7.1 compiled on November 10 2008
Buildfile: build.xml
Detected Java version: 1.6 in: /usr/lib/jvm/java-6-sun-1.6.0.13/jre
Detected OS: Linux

parsing buildfile /mnt/sda3/EclipseWork/testpersistence/build.xml 
with URI = file:/mnt/sda3/EclipseWork/testpersistence/build.xml

Project base dir set to: /mnt/sda3/EclipseWork/testpersistence

[antlib:org.apache.tools.ant] Could not load definitions from 
resource org/apache/tools/ant/antlib.xml. It could not be found.
parsing buildfile 
jar:file:/mnt/sda3/EclipseWork/testpersistence/lib/cayenne-server-3.0M5.jar!/org/apache/cayenne/tools/antlib.xml 
with URI = 
jar:file:/mnt/sda3/EclipseWork/testpersistence/lib/cayenne-server-3.0M5.jar!/org/apache/cayenne/tools/antlib.xml 


Build sequence for target(s) `classgen' is [classgen]

Complete build sequence is [classgen, prepare, clean, deploy, 
hsqldbgen, build, dist, ]


classgen:

BUILD FAILED
java.lang.NoClassDefFoundError: foundrylogic/vpp/VPPConfig

 at 
org.apache.cayenne.tools.CayenneGeneratorTask.initializeVppConfig(CayenneGeneratorTask.java:326) 

 at 
org.apache.cayenne.tools.CayenneGeneratorTask.getVppContext(CayenneGeneratorTask.java:76) 

 at 
org.apache.cayenne.tools.CayenneGeneratorTask.createGeneratorAction(CayenneGeneratorTask.java:91) 

 at 
org.apache.cayenne.tools.CayenneGeneratorTask.execute(CayenneGeneratorTask.java:156) 

 at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)

 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

 at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 

 at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 


 at java.lang.reflect.Method.invoke(Method.java:597)

 at 
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) 


 at org.apache.tools.ant.Task.perform(Task.java:348)
 at org.apache.tools.ant.Target.execute(Target.java:357)
 at org.apache.tools.ant.Target.performTasks(Target.java:385)

 at 
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)

 at org.apache.tools.ant.Project.executeTarget(Project.java:1306)

 at 
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) 


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

Caused by: java.lang.ClassNotFoundException: 
foundrylogic.vpp.VPPConfig
 at 
org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1400) 

 at 
org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1341) 

 at 
org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:1088) 


 at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
 ... 21 more

Total time: 0 seconds

Thanks,
Joseph.

Andrus Adamchik wrote:

The stack shows that ClassGenerator class is present, while 
ClassGeneratorResourceLoader is not. Both are coming from the same 
JAR. Very strange... Could you possibly try the same thing with 
Cayenne 3.0M5?



Also you can debug it with "ant -v" to see what the 
"full.classpath" is set to (maybe there's a conflicting Velocity 
installation or something).


Andrus


On May 25, 2009, at 11:55 AM, Joseph Wamicha wrote:


Hi Andrus,

Thanks for your response. The version is: cayenne-2.0.4

Andrus Adamchik wrote:

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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