[JBoss-user] [JCA/JBoss] - Re: ClassCastException retrieving DataSource on JNDI lookup
Moderated: HIJACK - start a new thread. My answer solves the stated problem. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3841955#3841955 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3841955 --- This SF.Net email sponsored by Black Hat Briefings Training. Attend Black Hat Briefings Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [JCA/JBoss] - Re: ClassCastException retrieving DataSource on JNDI lookup
I need javax.sql.DataSource in my deployment in order to assembly a list of Value Objects via JDBC instead of query the database through EJB-QL. I also need certain degree of isolation because our deployment lives with legacy releases of our application in the same container. We never had problem in JBoss 3.0.3, but we have in JBoss 3.2.3. I don't want any javax.* inside my EAR, neither does my system administrator because of extra replicated megabytes of infrastruture stuff. Don't you think would be better practice to share common infrastructure resources through ClassLoaders? Thanks, Eduardo Gouvea. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3839003#3839003 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3839003 --- This SF.Net email is sponsored by The 2004 JavaOne(SM) Conference Learn from the experts at JavaOne(SM), Sun's Worldwide Java Developer Conference, June 28 - July 1 at the Moscone Center in San Francisco, CA REGISTER AND SAVE! http://java.sun.com/javaone/sf Priority Code NWMGYKND ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [JCA/JBoss] - Re: ClassCastException retrieving DataSource on JNDI lookup
We use jboss-app.xml in META-INF folder of EAR file to restrict classes to be loaded only by the application's ClassLoader. Like this: jboss-app | loader-repositorymypackage:loader=myapp.ear/loader-repository | /jboss-app It works fine in Jboss 3.0.x. But we had a ClassCastException problem on looking up the configured DataSource from JNDI context. We had the problem when trying to cast the reference within a Delegate's method placed in a JAR on WEB-INF/lib directory of the web application and also within a Session Bean in the EJB container. After a few debugging tests, we came up with the fact that ClassLoaders for javax.sql.DataSource.class were different for the reference coming from JNDI context and that which was collocated to the Delegate or Session Bean. Debugging output looked like this: javax.sql.DataSource.class.getClassLoader(): [EMAIL PROTECTED] url=file:/C:/jboss3.2.3/server/default/tmp/deploy/tmp40857myapp.ear ,addedOrder=37} ds.getClass().getClassLoader(): [EMAIL PROTECTED] url=file:/C:/jboss3.2.3/server/default/tmp/deploy/tmp40781jboss-service.xml ,addedOrder=2} We deleted loader-repository element from META-INF/jboss-app.xml so the lookup and casting both succeeded. But we need the jboss-app.xml configuration in order to isolate legacy applications we developed and deployed on the same app server with different versions of the same class. Is there anything we can do? Is it a bug or an expected behaviour of JBoss ClassLoader architeture? Thanks, Eduardo Gouvea. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3837410#3837410 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3837410 --- This SF.Net email is sponsored by the new InstallShield X. From Windows to Linux, servers to mobile, InstallShield X is the one installation-authoring solution that does it all. Learn more and evaluate today! http://www.installshield.com/Dev2Dev/0504 ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [JCA/JBoss] - Re: ClassCastException retrieving DataSource on JNDI lookup
It is expected, why do you need javax.sql in your deployment? If you really do want isolation, you would have to copy the entire infrastructure (jboss rar, jdbc driver) into the ear, otherwise you will get all sorts of class confusion. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3837411#3837411 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3837411 --- This SF.Net email is sponsored by the new InstallShield X. From Windows to Linux, servers to mobile, InstallShield X is the one installation-authoring solution that does it all. Learn more and evaluate today! http://www.installshield.com/Dev2Dev/0504 ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [JCA/JBoss] - Re: ClassCastException retrieving DataSource on JNDI lookup
Run this small program | System.out.println(DataSource from + DataSource.class.getClassLoader()); | | Class[] interfaces = WrapperDataSource.class.getInterfaces(); | for (int i = 0; i interfaces.length; ++i) |System.out.println(interfaces + from + interfaces.getClassLoader(); | then remove the duplicate class(es). View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3832121#3832121 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3832121 --- This SF.net email is sponsored by: The Robotic Monkeys at ThinkGeek For a limited time only, get FREE Ground shipping on all orders of $35 or more. Hurry up and shop folks, this offer expires April 30th! http://www.thinkgeek.com/freeshipping/?cpg=12297 ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [JCA/JBoss] - Re: ClassCastException retrieving DataSource on JNDI lookup
OK. I only had it in 2 other places..:) Thanks, Nate View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3832170#3832170 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3832170 --- This SF.net email is sponsored by: The Robotic Monkeys at ThinkGeek For a limited time only, get FREE Ground shipping on all orders of $35 or more. Hurry up and shop folks, this offer expires April 30th! http://www.thinkgeek.com/freeshipping/?cpg=12297 ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
