Hello Chris, I am trying to test your WAR on JBoss 6 but because of the missing isolation (jboss-classloading.xml in the WEB-INF directory), I have to define the isolation first, which could take some time before the classes are no longer conflicting. With a default isolation I am currently getting this Exception:
16:53:25,359 WARN [ClassLoaderManager] Unexpected error during load of:javax.xml.stream.XMLEventReader: java.lang.LinkageError: loader constraint violation: loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) previously initiated loading for a different type with name "javax/xml/stream/XMLEventReader" Without isolation I am getting a ClassCastException because classes are loaded by different ClassLoaders from different deployments/delpoyers and therefore their version may clash. So, before I can give you a response, I have to get this running first. Kind regards, Marko Voß ePublishing & eScience Development & Applied Research Phone +49 7247 808-744 Fax +49 7247 808-133 marko.v...@fiz-karlsruhe.de FIZ Karlsruhe – Leibniz Institute for Information Infrastructure Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen, Germany www.fiz-karlsruhe.de From: Chris Wilper [mailto:cwil...@duraspace.org] Sent: Wednesday, August 17, 2011 3:52 PM To: fedora-commons-developers@lists.sourceforge.net Subject: Re: [fcrepo-dev] xalan, resteasy, activeMQ and JBoss Hi Marko, As I mentioned in the other thread, I think there is a distinct possibility that we will move Fedora's JAX-RS implementation to CXF down the road. This might be another good reason. I have used CXF for JAX-RS via Spring in another project, and I did that in a way that I think could also work for Fedora down the road. I am curious now whether the approach I used there would work in JBoss 5+. Since you probably have a JBoss instance up and running, would you mind giving it quick try? The download link and instructions can be found here: https://wiki.duraspace.org/display/FEDORACREATE/Fedora+CloudSync+Installation If this works in JBoss 5+, that would be good information to have, and could help us make the decision to move to CXF for our JAX-RS impl down the road. To be clear, I think using approaches and libs that work with the widest range of popular containers we can is a good thing. I am just wary of doing too much that caters to any one specific container. This seems like an area where we may be able to just use a different library and wiring mechanism (which we were already thinking about), and achieve slightly better compatibilty with a wider range of containers. Thanks, Chris On Wed, Aug 17, 2011 at 7:38 AM, Voß, Marko <marko.v...@fiz-karlsruhe.de> wrote: Hello, Next to the missing Xalan Implementation in Fedora deployed in JBoss (depending on JBoss version and/or classloading isolation of the web application), there is another problem with Fedora 3.4.2 deployed in Jboss 5+. You will get an exception about the ResourceConfig not having any root resource classes, because the package scanner of Jersey is scanning for classes having the @Path annotation inside of the packages defined by the param-values of the param-name configurations "com.sun.jersey.config.property.packages" in the fedora.war/WEB-INF/web.xml and since JBoss 5+ the classloader do support a VFS (virtual file system) only. So the URLs returned by the classloaders consists of the scheme vfs:/ in JBoss 6 and because of that, the Jersey AnnotationClassScanner or the Scanner implementations of the later Jersey versions are unable to find the URLs, because they are checking for URLs with the schemes "file:/", "jar:/" and so on but not for "vfs:/". In Jersey 1.3 this has been fixed for schemes "vfsfile" and "vfszip" (iirc), which are schemes of JBoss 5, which got changed to "vfs" in JBoss 6. To summarize this: It is impossible to get the Fedora RestService running in JBoss 5 and later versions for Fedora 3.4.2. Possible solution: A possibility to get around the VFS URLs could be, to write a class, which extends from javax.ws.rs.Application and defines the REST interface for Fedora. Instead of defining packages to scan, you define the param-name "javax.ws.rs.Application" with the implementing class as the param-value in the fedora.war/WEB-INF/web.xml. Kind regards, Marko Voß ePublishing & eScience Development & Applied Research Phone +49 7247 808-744 Fax +49 7247 808-133 marko.v...@fiz-karlsruhe.de FIZ Karlsruhe – Leibniz Institute for Information Infrastructure Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen, Germany www.fiz-karlsruhe.de Fehler! Es wurde kein Dateiname angegeben. ------------------------------------------------------- Fachinformationszentrum Karlsruhe, Gesellschaft für wissenschaftlich-technische Information mbH. Sitz der Gesellschaft: Eggenstein-Leopoldshafen, Amtsgericht Mannheim HRB 101892. Geschäftsführerin: Sabine Brünger-Weilandt. Vorsitzender des Aufsichtsrats: MinDirig Dr. Thomas Greiner. ------------------------------------------------------------------------------ Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. 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