PCEnhancer Ant task unable to find persistence.xml in default location with
explicit classpath definition
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Key: OPENJPA-482
URL: https://issues.apache.org/jira/browse/OPENJPA-482
Project: OpenJPA
Issue Type: Bug
Affects Versions: 1.0.1
Environment: Linux, Apache Ant 1.7.0, Sun JDK 1.6.0_01-b06
Reporter: Andy Schlaikjer
I've noticed some irregular behavior from the PCEnhancer's "openjpac" Ant task:
When I specify a custom classpath for the task using an embedded <classpath>
element, the task is unable to properly locate my persistence.xml file in the
default "META-INF/persistence.xml" location relative to this path. I must
explicitly specify the location of the persistence.xml file using the
"propertiesFile" attribute of the nested "config" element.
Here's an outline of the layout of my project files:
project/
build.xml
lib/classes/...(compiled class files)...
lib/classes/log4j.properties
lib/classes/META-INF/persistence.xml
The relevant code from build.xml:
<path id="build.classpath">
<fileset dir="${basedir}/lib">
<include name="**/*.jar" />
<exclude name="**/${dist.name}.jar" />
</fileset>
</path>
...
<taskdef name="openjpac"
classname="org.apache.openjpa.ant.PCEnhancerTask"
classpathref="build.classpath" />
<openjpac>
<classpath>
<pathelement location="${basedir}/lib/classes" />
<path refid="build.classpath"/>
</classpath>
</openjpac>
If i modify the openjpac element as follows, the persistence.xml file is picked
up:
<openjpac>
<classpath>
<pathelement location="${basedir}/lib/classes" />
<path refid="build.classpath"/>
</classpath>
<config propertiesFile="${basedir}/lib/classes/META-INF/persistence.xml"/>
</openjpac>
Here's an additional point of interest: In my persistence.xml file I set
<property name="openjpa.Log" value="log4j" /> to enable Log4j logging within
OpenJPA. Notice that I have my log4j.properties file in the root of my
classpath hierarchy, where it should be automatically found by Log4j on
initialization. When I run ant using the second configuration listed above, I
see this output:
[openjpac] log4j:WARN No appenders could be found for logger (openjpa.Runtime).
[openjpac] log4j:WARN Please initialize the log4j system properly.
My log4j properties file does contain all required configuration, but it isn't
being found by Log4j, just like the PCEnhancer task isn't picking up my
persistence.xml from the specified classpath. Perhaps the PCEnhancer task is
somehow incorrectly incorporating this classpath, or failing to pass it along
on initialization? Perhaps to get this to work properly a new runtime must be
created (fork) so the classpath is available to everything uniformly?
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