He, we're using maven 2.0.4 (although I just tried 2.0.5 and the same
problem exists), and we're using Hibernate Entity Manager 3.2.1-ga, and
we're on a Windows Platform. These 3 things don't seem to work together.
The problem is the default repo for maven jars contains spaces on windows
C:\Documents and Settings\etc.
Hibernate Entity Manager expects to find META-INF\persistence.xml on the
classpath. The general idea is to bury this in a jar that is loaded as a
dependency on our maven repo classpath, right?
Hibernate has code similar to this in
org.hibernate.ejb.EjbConfiguration.java (I added logger and assertions):
try {
Enumeration<URL> xmls = Thread.currentThread()
.getContextClassLoader()
.getResources( "META-INF/persistence.xml" );
if ( ! xmls.hasMoreElements() ) {
fail( "Could not find any META-INF/persistence.xml file in the
classpath");
}
while ( xmls.hasMoreElements() ) {
URL url = xmls.nextElement();
LOGGER.debug( "Analyse of persistence.xml: " + url );
URL jarURL = getJarURLFromURLEntry( url, "/META-INF/persistence.xml"
);
assertFalse("Jar URL should not contain spaces, "+jarURL,
jarURL.toString().contains(" "));
}
1. Create a jar-file, install it in local maven repo.
2. Add META-INF\persistence.xml to the jar file
3. Add a dependency to a new maven test project
4. Paste in code like above -- test case will always fail when it tests for
whitespace in the url.
System.out.println(Thread.currentThread
().getContextClassLoader().getClass().getCanonicalName());
prints
org.apache.maven.surefire.booter.IsolatedClassLoader
If I run from Eclipse, I have no problems, and the above println prints
instead:
sun.misc.Launcher.AppClassLoader
I am *desperate* for any kind of solution to this problem that does not
require me to change the local maven repo to a url without spaces.
I need the URLClassLoader (IsolatedClassLoader) to correctly deal with
whitespace and replace it with %20. If there is some other workaround --
please let me know. Hibernate ends up throwing an exception and returning
null for the EntityManager which is an absolute show-stopper for us.
Thank you in advance,
Davis
