As it turns out, method ResourceLoaderFactory.getLoader was already
modified to use the thread context classloader. Using a snapshot from
yesterday (with no modification), the problem goes away!
Thanks to all who participated in this discussion and fix... very
enlightening.
Is there a tutorial or article that covers this topic (class-loading in
the app-server environment)?
Thanks,
Steve
Stephen Morris wrote:
I'm having a similar problem with Velocity (1.4) being able to
instantiate a custom resource loader [see stack trace below].
Would the fix to class
ClasspathResourceLoader
fix this problem also if applied to class:
org.apache.velocity.runtime.resource.loader.ResourceLoaderFactory.getLoader
?
Thanks,
Steve
Error is: java.lang.ClassNotFoundException:
blah.blah.blah.MyCustomResourceLoader
at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at
org.apache.velocity.runtime.resource.loader.ResourceLoaderFactory.getLoader(ResourceLoaderFactory.java:79)
at
org.apache.velocity.runtime.resource.ResourceManagerImpl.initialize(ResourceManagerImpl.java:185)
at
org.apache.velocity.runtime.RuntimeInstance.initializeResourceManager(RuntimeInstance.java:502)
at
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:268)
at
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:441)
at
org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:148)
Shinobu Kawai wrote:
Hi max,
Any particular reason why velocity only do Class.forName() where
it should first look in thread context classloader and THEN do
Class.forName() ?
(it gives some issues when running in environments with changing
classloaders, like
J2EE and Eclipse)
Are we talking about the ClasspathResourceLoader? Then it's fixed in
the latest repository.
http://issues.apache.org/bugzilla/show_bug.cgi?id=22419
For the latest in the repository:
http://cvs.apache.org/snapshots/velocity/
Best regards,
-- Shinobu
--
Shinobu Kawai <[EMAIL PROTECTED]>
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