Datanucleus ANT enhancement cannot find my classes to enhance - ant

Question

I'm using this because the enhancer plugin couldn't handle long CLASSPATHs on Winodws so using the plugin isn't a valid option.
My module.xml file is pretty much the default file but I only removed the enhance target dependency on compile and copy.metadata. I'm not compiling my .java classes because:
I have many libraries to include and it's a headache if I upgrade any set of libraries.
I don't need to because eclipse actually does that
And I removed the part that archives the whole project folder because I'm just building a JAR.
-->
<echo message="==================================================================="/>
<echo message="Enhancing the MODULE files"/>
<echo message="==================================================================="/>
<!-- the classpath to enhance -->
<path id="module.enhancer.classpath">
<pathelement location="${module.classes.dir}"/>
<path refid="module.lib.classpath"/>
</path>
<!-- define the task enhancer -->
<taskdef name="nucleusenhancer"
classpathref="module.enhancer.classpath"
classname="org.datanucleus.enhancer.tools.EnhancerTask" />
<!-- enhance -->
<nucleusenhancer classpathref="module.enhancer.classpath"/>
</target>
<!--
===================================================================
TARGET : modulearchive
===================================================================
-->
<target name="modulearchive" depends="enhance">
<mkdir dir="${module.archive.dist.dir}"/>
<delete file="${module.archive.dist.dir}/${module.archive.dist.file}"/>
<zip zipfile="${module.archive.dist.dir}/${module.archive.dist.file}">
<zipfileset dir="${module.classes.dir}" prefix="" includes="**/*"/>
</zip>
</target>
Also I'm having this warning that wouldn't go away no matter what I do!
<taskdef name="nucleusenhancer"
classpathref="module.enhancer.classpath"
classname="org.datanucleus.enhancer.tools.EnhancerTask" />
>>>E:\Projects\Core - Module\${module.lib.dir} does not exist.
My module.properties file isn't changed much. I commented properties for WAR building and uncommented properties for JAR building:
#######################################
# SAMPLE FOR JAR MODULE (commented out)
#######################################
module.dir=./
module.lib.dir=${module.dir}/lib/dn
module.lib2.dir=${module.dir}/lib/deps
module.classes.dir=${module.dir}/target/classes
module.src.java.dir=./src/main/java
module.build.debug=on
module.archive.dist.dir=dist
module.archive.dist.file=${name}.jar
module.archive.files=**/*
The folder lib beneath my project's folder holds 2 folders, datanucleus main jars for RDBMS while the other folder holds datanucleus dependencies. My compiled classes are beneath target.
The output is simply the following:
Buildfile: E:\Projects\Core - Module\build.xml
default:
[echo] ===================================================================
[echo] Welcome to the build.
[echo] ===================================================================
enhance:
[echo] ===================================================================
[echo] Enhancing the MODULE files
[echo] ===================================================================
[nucleusenhancer] log4j:WARN No appenders could be found for logger (DataNucleus.Enhancer).
[nucleusenhancer] log4j:WARN Please initialize the log4j system properly.
[nucleusenhancer] DataNucleus Enhancer (version 3.1.0.release) : Enhancement of classes
[nucleusenhancer] DataNucleus Enhancer completed and no classes were enhanced. Consult the log for full details
modulearchive:
[zip] Building zip: E:\Projects\Core - Module\dist\my-module-name.jar
distribution:
[echo] ===================================================================
[echo] Module file ready at: dist/my-module-name.jar
[echo] ===================================================================
BUILD SUCCESSFUL
Total time: 2 seconds

Answer 1

The enhancement is an actual modification to the compiled classes. If you are not compiling the classes first, there will be nothing for it to enhance.