[JBoss-user] [EJB/JBoss] - Re: ClassCastException if calling EJB from external servlet
Hi, I have excatly the same problem, and can't seem to fix it... Anyone have a suggestion ? :-) View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=3941709#3941709 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=3941709 --- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on PortableRemoteObject.narrow()
Two pieces of information missing, JBoss version and what is the client performing the lookup. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=3910271#3910271 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=3910271 --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637alloc_id=16865op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on PortableRemoteObject.narrow()
Hi, thanks for replying. JBoss versions I've tested with: 4.0.1sp1 4.0.3sp1 About the client: one is a Servlet, the other one a MDB. The MDB is the main client, the servlet I've just create to continue testing at home, where I can't make use of the MDB, as I can't send a message to it (it's not a JMS message it works on). I've meanwhile found http://www.jboss.com/index.html?module=bbop=viewtopict=64201 and therein http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases and http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration So I guess the Servlet will not work at any time, which is something I could live with (at least I wouldn't know why I'd really *need* the Servlet being able to load the business object in a different ear). But not being able to get the RemoteObject from a different EAR when calling from the MDB is a show stopper for me, because it would require me to shut down MDB-service every time one of the many enterprise applications that should be accessed through the MDB deploys an update :-/ View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=3910380#3910380 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=3910380 --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637alloc_id=16865op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
Re: [JBoss-user] [EJB/JBoss] - Re: ClassCastException on PortableRemoteObject.narrow()
Hi, I was having just the same problem and (took at least few hours searching on google and interpreting user posts) looks like a classloader issue. The following discussions throw a light on it. http://www.jboss.org/index.html?module=bbop=viewtopict=59192postdays=0postorder=ascstart=0 http://www.jbossgroup.com/index.html?module=bbop=viewtopicp=3887843 Eventually it boils down to two solutions - 1. In the $JBOSS_HOME/server/default/deploy/jbossweb-tomcat55.sar/META-INF/jboss-service.xmlfile you need to change two parameters - attribute name=Java2ClassLoadingCompliancetrue/attribute attribute name=UseJBossWebLoadertrue/attribute The following link tells why. http://jira.jboss.com/jira/browse/JBAS-1691 This method works I have tested myself. 2. You need to package your web or client application WITHOUT the ejb (home/remote) classes. They should be present ONLY in the ejb jar file. This approach I haven't tested but should work as per the above discussions. Atul. On 12/2/05, PitPalme [EMAIL PROTECTED] wrote: Hi, thanks for replying.JBoss versions I've tested with:4.0.1sp14.0.3sp1About the client: one is a Servlet, the other one a MDB. The MDB is the main client, the servlet I've just create to continue testing at home, where I can't make use of the MDB, as I can't send a message to it (it's not a JMS message it works on).I've meanwhile found http://www.jboss.com/index.html?module=bbop=viewtopict=64201and therein http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCasesandhttp://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration So I guess the Servlet will not work at any time, which is something I could live with (at least I wouldn't know why I'd really *need* the Servlet being able to load the business object in a different ear). But not being able to get the RemoteObject from a different EAR when calling from the MDB is a show stopper for me, because it would require me to shut down MDB-service every time one of the many enterprise applications that should be accessed through the MDB deploys an update :-/ View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=3910380#3910380Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=3910380--- This SF.net email is sponsored by: Splunk Inc. Do you grep through log filesfor problems?Stop!Download the new AJAX search engine that makessearching your log files as easy as surfing theweb.DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637alloc_id=16865op=click___JBoss-user mailing list JBoss-user@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException for EJB3.0 sessionbean lookup
This looks familiar, I think I ran into it at some point, but don't recall exactly what was wrong. Make sure your client is doing a JNDI lookup on the remote interface class name, not the local interface or the bean itself. Also, make sure you are casting the result of the JNDI lookup to the remote interface, not anything else. If that doesn't work, take a closer look at what exactly $Proxy120 is, find out what interfaces it implements. (Put in some debug log statements, or use a debugger) For more help, we probably need to see some of the code around your UserAction.java line 357. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3892096#3892096 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3892096 --- SF.Net email is Sponsored by the Better Software Conference EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile Plan-Driven Development * Managing Projects Teams * Testing QA Security * Process Improvement Measurement * http://www.sqe.com/bsce5sf ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with EJBs
Thankyou svetzal, setting UseJBossWebLoader to true (in 4.0.2), solved the problem. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3885186#3885186 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3885186 --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on EJB Remote Lookup/Narrow
Thanks for responding. I'm using JBoss 4.0.2. Yes, the interfaces are in the war file, in a jar under WEB-INF/lib. This was the suggested way to do it in the JBossIDE tutorial. How would you suggest I package them? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3885004#3885004 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3885004 --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on EJB Remote Lookup/Narrow
Place the beans in a jar file, say MyBeans_ejb.jar, and mention this in the application.xml file as follows: MyBeans_ejb.jar I think this should work View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3885007#3885007 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3885007 --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on EJB Remote Lookup/Narrow
Have you packaged the jar and war together in an ear? Just don't add the interfaces jar to the web application. If the beans are deployed within the ear of the war the interfaces will be available at runtime anyway. The section in the tutorial that shows how to do this probably needs to be removed now. The problem is when they are packaged twice is that they get loaded by two different classloaders which makes them look as if they are different. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3885009#3885009 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3885009 --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on EJB Remote Lookup/Narrow
Sorry, forgot to mention the contents of application.xml in the previous post: Make an entry as follows: module | ejbMyBeans_ejb.jar/ejb | /module | module And create a jar file MyBeans.jar containing the interfaces and beans View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3885011#3885011 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3885011 --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on EJB Remote Lookup/Narrow
Yes, everything was in an ear. I did as you suggested and it works fine. Thanks. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3885023#3885023 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3885023 --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on EJB Remote Lookup/Narrow
Which version of JBoss are you using? How is your application actually packaged? If you have packaged the interfaces in the war file you need to remove them as that is probably the cause of the conflict. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3884941#3884941 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3884941 --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with EJBs
darranl wrote : Have any of you read the links posted by Scott earlier in this thread? I realize everybody's busy and all, but perhaps a short summary of the problem (a sentence or two) before referring the world to 25 pages of detailed technical description containing _far_ more than we really need to understand the issue is not what we want here. So, perhaps this will help future visitors to this page: From 4.0.2 JBoss has changed to the Servlet spec classloading model, i.e. it uses the Tomcat classloader. The first link Scott provided details the hows and whys of the ClassLoader architecture implemented in JBoss. If you have time, read this, it will help you - but get a cup of coffee and spend some time with it, don't just gloss it over. http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases The second link Scott provided has some specific examples and reading the configurations and their implications triggered my brain far faster than the more exhaustive technical description. Since then, however the first link was helpful when I couldn't reason something out. http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration So, while I digest all this, I've set the UseJBossWebLoader to true (the standard distribution of JBossAS 4.0.2 sets this false) in the jbossweb-tomcat55.sar\META-INF\jboss-service.xml so that the rest of my team can keep going unhindered, and I can figure out what I need to do in terms of changing our deployment structure to be compliant. Steve View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3882717#3882717 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3882717 --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException during ContextInitialization using St
So, I've been patiently working through this and am getting closer to solving the class loading issues, but, still have a few quirks to work out. I have read the JBossClassLoadingUseCases and found http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration to be very useful. Based on the article ClassLoadingConfiguration I have been able to Isolate my classes and deploy my application, however, in doing so I have lost the ability to interact with another .ear. My application depends on a security.ear which holds common classes in a .jar file and its own ejb classes. When I deploy my app with the security.jar file embedded in the web-inf/lib I get a ClassCastException. When I deploy without the security.jar file I get a ClassNotFoundException. I'm at a loss for what to do next... Any suggestions appreciated. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3881673#3881673 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3881673 --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
Lots of suggestion but i didnt find any thing helpfull , simple i got a .war folder which is suppoesed to access a bean deployed separately within jar file i tried by giving ejb-local-ref tag in deployment descriptor of ejb module but nothing changed, i tried by adding ejb-localref adding jboss-web.xml nothing helpfull can any suugest what should i do to make it work View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3881292#3881292 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3881292 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with EJBs
Hi all, I have the same problem. It's works with JBoss 3.2.7, but fails when I deploy in JBoss 4.0.2. What is the problem? I'm new in this environment. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3881050#3881050 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3881050 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with EJBs
I experienced the same problem on 4.0.2. I rolled back to 4.0.1 (SP1) and it worked. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3881067#3881067 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3881067 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with EJBs
Have any of you read the links posted by Scott earlier in this thread? They may help you understand the problem without needing to roll back to earlier releases. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3881074#3881074 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3881074 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
Thanks Scott. I just wanted to rephrase what you said to clarify. It is imperative that you do not include classes in both a war and jar in the same ear as they will be loaded by two different class loaders, thus causing the ClassCastException. If they are present only once in the ear, they will be loaded and available in the unified loader repository and the war will grab the loaded references when an attempt to load them from the war fails. You do not need to modify the jboss-service.xml file. Now that I understand how JBoss class loading works, I find it preferrable to the Sun implementation, which required you to put the file in both the jar and war in order for it to work. Thanks for the help and the great product. Raj View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3881102#3881102 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3881102 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
There can only be a single class loader for types used in call be reference scenarios. Wars are always at bottom of the class loader chain, so this means that they should never contain duplicate classes that are involved in call by reference scenarios. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3880438#3880438 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3880438 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
[EMAIL PROTECTED] wrote : And everyone asking this question has read: | http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases | Scott, I read the article, and it was very helpful. However, it doesn't yet cover UCL3 and EARs with embedded JARs and WARs (the second TO-DO), which is the situation I'm dealing with. So, extrapolating from what you wrote in the use cases wiki page, I would need to somehow make the EAR load the session bean's interface classes. That way they would be available to both the JAR and WAR. Is this correct? If so, how do I do that? If not, what should I do? Thanks. Raj View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3880326#3880326 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3880326 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
I Meant for movzx reply on I've solve this problem by changing options of jboss-service.xml in deploy/jbossweb-tomcat55.sar: sudhakar kanakaraj View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3880248#3880248 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3880248 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
true true Yes! This's been workin fine for classcastexception problem in JBoss 4.X and +, thanx a lot! sudhakar kanakaraj View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3880247#3880247 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3880247 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException during ContextInitialization using St
And you have read the following? http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3880258#3880258 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3880258 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
And everyone asking this question has read: http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3880265#3880265 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3880265 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with EJBs
on which version of jboss, it worked? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3880187#3880187 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3880187 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException during ContextInitialization using St
There's additional information in the server log after startup about MBeans
being the root cause:
=ERROR [main] (org.jboss.deployment.scanner.URLDeploymentScanner:527) -
Incomplete Deployment listing:
|
| --- Incompletely deployed packages ---
| [EMAIL PROTECTED] {
url=file:/C:/jboss-4.0.2/server/default/deploy/administration.ear }
| deployer: [EMAIL PROTECTED]
| status: Deployment FAILED reason: URL
file:/C:/jboss-4.0.2/server/default/tmp/deploy/tmp56868administration.ear-contents/system_web-exp.war/
deployment failed
| state: FAILED
| watch: file:/C:/jboss-4.0.2/server/default/deploy/administration.ear
| altDD: null
| lastDeployed: 1117826809387
| lastModified: 1117826796000
| mbeans:
|
| --- MBeans waiting for other MBeans ---
| ObjectName: jboss.web.deployment:id=324750195,war=system_web.war
| State: FAILED
| Reason: org.jboss.deployment.DeploymentException: URL
file:/C:/jboss-4.0.2/server/default/tmp/deploy/tmp56868administration.ear-contents/system_web-exp.war/
deployment failed
|
| --- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
| ObjectName: jboss.web.deployment:id=324750195,war=system_web.war
| State: FAILED
| Reason: org.jboss.deployment.DeploymentException: URL
file:/C:/jboss-4.0.2/server/default/tmp/deploy/tmp56868administration.ear-contents/system_web-exp.war/
deployment failed
|
|
| =DEBUG [main]
(org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread:151) -
Notified that enabled: true
| =DEBUG [main] (org.jboss.deployment.scanner.URLDeploymentScanner:300) -
Started jboss.deployment:flavor=URL,type=DeploymentScanner
| =DEBUG [main] (org.jboss.system.ServiceController:433) - Starting dependent
components for: jboss.deployment:flavor=URL,type=DeploymentScanner dependent
components: []
| =DEBUG [main] (org.jboss.deployment.MainDeployer:971) - End deployment
start on package: jboss-service.xml
| =DEBUG [main] (org.jboss.deployment.MainDeployer:776) - Deployed package:
file:/C:/jboss-4.0.2/server/default/conf/jboss-service.xml
| =DEBUG [main] (org.jboss.web.tomcat.tc5.Tomcat5:518) - Saw
org.jboss.system.server.started notification, starting connectors
| = INFO [main] (org.apache.coyote.http11.Http11Protocol:188) - Starting
Coyote HTTP/1.1 on http-0.0.0.0-8080
| = INFO [main] (org.apache.jk.common.ChannelSocket:366) - JK: ajp13
listening on /0.0.0.0:8009
| = INFO [main] (org.apache.jk.server.JkMain:342) - Jk running ID=0
time=0/250 config=null
| = INFO [main] (org.jboss.system.server.Server:456) - JBoss (MX MicroKernel)
[4.0.2 (build: CVSTag=JBoss_4_0_2 date=200505022023)] Started in 2m:1s:635ms
Also, I forgot to say, I'm using j2sdk1.4.2_06.
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[JBoss-user] [EJB/JBoss] - Re: ClassCastException during ContextInitialization using St
I hope this doesn't come back to haunt me later, but, this article explains how to get the classloading back to what it was doing in 4.0.1sp1: http://jira.jboss.com/jira/browse/JBAS-1691 Could someone help me understand the difference between the two classloaders? Why would one be favored over the other? Thanks, Graham View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3880234#3880234 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3880234 --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
I've solve this problem by changing options of jboss-service.xml in deploy/jbossweb-tomcat55.sar: | attribute name=Java2ClassLoadingCompliancetrue/attribute | attribute name=UseJBossWebLoadertrue/attribute | This is a class loader issue of Java2. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3879712#3879712 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3879712 --- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
movzx wrote : | This is a class loader issue of Java2. Not really, this is an artifact of the Servlet 2.3 spec, which calls for a web container first class loading. I haven't tried it yet, but upon rereading the JIRA issue discussion I mentioned earlier, I believe that the more appropriate way to solve my problem is to instead add the session bean interface packages to the Filtered packages list in the file that movzx referenced earlier. Anyone try this yet? Thanks Raj View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3879754#3879754 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3879754 --- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
erinol0,so you mean that you will call a SLSB from the web module? If so,that will be the same problem as I've mentioned before. I believe you will get a ClassCastException if your web module and the EJB module don't belong to the same EAR while trying to pass instances by reference,for the Java2 defines a unique class as the combination of its classloader and its FQN. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3879796#3879796 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3879796 --- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
A stateless session bean can be called from a web module. I had in fact done this with Sun prior to trying JBoss. Also, my jar and war were even in the same ear. The issue is just that JBoss changed the default behavior of their web container to follow the servlet spec by default, which is why the settings you mentioned changing previously removed the ClassCastException. You basically set JBoss back to 4.0.1 settings. I did have the same problem as you, and that's why I posted the response to your question. I just wasn't convinced that the solution that I chose (to use the JBoss unified class loader for Tomcat) was appropriate. The JBoss developers changed it for a reason, after all. Incidentally, I tried adding the packages of the classes present in my session bean interface in a comma seperated list to the filtered packages list in the tomcat jboss-service.xml file and setting the class loader properties back to false, and that works as well. Actually, I'd really appreciate it if a JBoss developer would comment on this issue, and what is an appropriate course of action to deal with this issue (other than pass by value, because that's CPU intensive). Thanks, Raj View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3879838#3879838 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3879838 --- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
i'm not sure if i'm understanding your problem fully (i'm just a beginner) but i think i've read somewhere, that for some reason you have to cast a a class here in that way: home 2 = (CommandLocalHome) PortableRemoteObject.narrow(home1,CommandLocalHome.class); hope this helps (at least to find a solution) ;) View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3879590#3879590 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3879590 --- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with LocalHome casting
There is no need to narrow on a LocalHome, only with a RemoteHome. The problem is probably that JBoss, as of 4.0.2, uses the Tomcat class loader for anything hosted by Tomcat, including web services and JSPs. Prior to this, they used the JBoss Class Loader by default. You have a few different options with regards to how to handle this, so here's the wiki page that should help: http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration and JIRA issue page: http://jira.jboss.com/jira/browse/JBAS-1691 Personally, I just set Tomcat to use the JBoss class loader, but this is probably just a stopgap fix. I think I understand why it was changed, but am not sure I'm happy with the call-by-value method of dealing with this. Does anybody have any other solutions that might work. I'm currently publicly exposing a JAX-RPC web service, which in turn calls a stateless session bean. I need the web service for .NET client integration. Thanks in advance for any help that anyone can offer. Raj View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3879604#3879604 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3879604 --- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with EJBs
http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3878554#3878554 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3878554 --- This SF.Net email is sponsored by Oracle Space Sweepstakes Want to be the first software developer in space? Enter now for the Oracle Space Sweepstakes! http://ads.osdn.com/?ad_id=7412alloc_id=16344op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with EJBs
So what i have to do? I understood that probably it is a problem of version, now i'm trying to test it on an older version of JBoss. But if that test would fail what i could do? Thx a lot ;) View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3878569#3878569 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3878569 --- This SF.Net email is sponsored by Oracle Space Sweepstakes Want to be the first software developer in space? Enter now for the Oracle Space Sweepstakes! http://ads.osdn.com/?ad_id=7412alloc_id=16344op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException with EJBs
It was just a problem of JBoss version!! Now it runs!!! Bye bye! ;) View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3878575#3878575 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3878575 --- This SF.Net email is sponsored by Oracle Space Sweepstakes Want to be the first software developer in space? Enter now for the Oracle Space Sweepstakes! http://ads.osdn.com/?ad_id=7412alloc_id=16344op=click ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException when obtaining a Remote Interface fro
There should not be a need to cast the object returned from the create method. The create method of the home interface should have a return type of the remote interface already. If the home interface is a local home the return type should be the local interface. What does your home interface look like? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3874790#3874790 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3874790 --- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException when obtaining a Remote Interface fro
Hi, again. The interfaces are remote (I don't run the junit client inside JBoss,but in a different virtual machine). But, don't worry. It works fine now!!! The error was mine. The issue was that the Remote Interface name (HelloWorld) and the bean class had the same name, and when the Eclipse shows the different classes to fix the import errors, I chose unintentionally the bean class instead the interface class. I've changed the class and it works. But thanks a lot for your attention and your time. Bye View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3874796#3874796 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3874796 --- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException invoking LocalHome finder methods on
Hi all, Since NOBODY reply my question, I'll answer it myself... the problem was caused by wrong use of (Home/Remote) interface pairs. If you're using LocalHome you MUST use the EJB's Local interface! I hope this could help somebody... View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3874518#3874518 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3874518 --- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException
What is the full exception produced by a e.printStackTrace() ? Are you sure that your client has the same version of the interface as the server? Are you sure that your bean is configured to use the correct home interface? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3859253#3859253 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3859253 --- SF email is sponsored by - The IT Product Guide Read honest candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on Session Bean - Classloader issue?
I included the jar file which contains the session bean in question in the WEB-INF/lib directory, but I am still encountering this problem. I'm not sure exactly why this ClassCastException is happening, but I found a post where the exact same problem was encountered with Inprise app server and wondered if there wasn't a similar cause underlying both problems: http://groups.google.com/groups?hl=enlr=ie=UTF-8threadm=87e8hg%245al2%40bornews.borland.comrnum=6prev=/groups%3Fq%3D%252BClassCastException%2B%252B%2522session%2Bbean%2522%2B%252Blookup%26hl%3Den%26lr%3D%26ie%3DUTF-8%26selm%3D87e8hg%25245al2%2540bornews.borland.com%26rnum%3D6 View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3846497#3846497 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3846497 --- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=5047alloc_id=10808op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException during getCursor with Oracle...
I figured out how to do it.. For posterity I'll post it here...
| cst = connection.prepareCall({call request_list.get_default_request_list
(?,?,?)});
| cst.setInt(1, 1);
| cst.setInt(2, 1);
| cst.registerOutParameter(3, OracleTypes.CURSOR);
| cst.execute();
|
| rs = (ResultSet) cst.getObject(3);
|
Note that using getCursor doesn't work BUT getObject does provided I tell the output
parameter it's a oracle cursor.
Go figure - the one thing I didn't try was the way to fix it..
The reason for this is that JBoss called statements are implemented via a
WrappedCallableStatement (a JBoss object) and that can't be cast to the
OracleCallableStatement (which makes sense after I thought about it a bit). However,
you can register the output parameter as an oracle type and then cast *that* to the
result set.
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[JBoss-user] [EJB/JBoss] - Re: ClassCastException After HotDeploy Stateful Session Bean
OK, here is a summary of how I resolved this issue: jbossweb-tomcat50.sar\META-INF\jboss-service.xml: 1. set attribute Java2ClassLoadingCompliance to false 2. set attribute UseJBossWebLoader to false in building my war (which is included in the ear), I make sure that all required library jar files (such as struts) are in the WEB-INF/lib/ directory. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3839455#3839455 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3839455 --- 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] [EJB/JBoss] - Re: ClassCastException After HotDeploy Stateful Session Bean
http://www.jboss.org/wiki/Wiki.jsp?page=HotDeployClassCastExceptions (this would (should) have come up in a search of the forums). View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3838784#3838784 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3838784 --- 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] [EJB/JBoss] - Re: ClassCastException After HotDeploy Stateful Session Bean
Yep, I had already read that page and decided it did not apply in this situation. Let me explain my understanding of the problem. The class that the code snippet is copied from is called TeacherApplicationBD (business deligate) and it is packaged in the exact same jar that the ejb is packaged in and it is not keeping any reference to the class returned from before the hot deploy, it is simply getting the new TeacherApplicationSessionHome class through lookup and then trying to cast it as such in order to use it. For an unexplained reason, the TeacherApplicationSessionHome class used to perform the cast is from an old class loader that should have been completly replaced by the new ear deployment (notice how url=null after hot deployment). View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3838833#3838833 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3838833 --- 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] [EJB/JBoss] - Re: ClassCastException After HotDeploy Stateful Session Bean
is the web app packaged inside the ear? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3838838#3838838 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3838838 --- 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] [EJB/JBoss] - Re: ClassCastException After HotDeploy Stateful Session Bean
Yes it is as well. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3838864#3838864 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3838864 --- 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] [EJB/JBoss] - Re: ClassCastException After HotDeploy Stateful Session Bean
After much experimentation, I have found that if I move the code that calls and loads the TeacherApplicationBD class directly into a jsp, it works there. For some reason when the TeacherApplicationBD class is loaded from an Action Class it causes the ClassCastException inside the TeacherApplicationBD constructor (the code listed above). The one thing I can think of is that the Action Class extends org.apache.struts.action.Action which is loaded from a struts.jar located outside of the ear and that must somehow cause the problem? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3838870#3838870 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3838870 --- 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] [EJB/JBoss] - Re: ClassCastException After HotDeploy Stateful Session Bean
BTW, this is with JBoss 3.2.4. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3838723#3838723 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3838723 --- 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] [EJB/JBoss] - Re: ClassCastException at runtime
i posted this message back when the mailing lists were being used directly (as opposed to now where we primarily use the forums and just see the messages via the list). maybe i should turn this into the base for a wiki faq page since this topic seems to be coming up a lot as of late. - if you want to have two scoped ears in the same VM communicate w/ each other, then you need to extract the common interfaces out of both of the scoped ears and either deploy them as standalone jars, or package them up into an *unscoped* ear. ie: A.ear is scoped and exposes it's interface via a class called Foo. B.ear is scoped and needs to use interface Foo to access A.ear remove class Foo from both A.ear and B.ear and either deploy it in a standalone jar and you'll be good to go. the whiteboard picture would look something like this: Foo.jar A.ear (scoped)B.ear (scoped) so when A.ear asks for interface Foo, it sees that it is not available via it's classloader and then asks for it from the top level class loader. the same thing occurs w/ B.ear - it can't find the class, and asks the top level loader, leaving both ears to get the same class loader definition. this also now allows you to hot deploy A.ear and/or B.ear w/o having to restart jboss. this mechanism also works if for hot deploying unscoped ears as well. keep in mind that if your interfaces return an object of type Baz, that class will also have to be packaged inside the same jar that contains the ejb interfaces. a slight con to this approach is that if any of the classes change inside the standalone jar file and you redeploy it, you will either have to restart the server or touch all the other deployment archives that rely upon that jar. the reason for this is that the ear's class loader will have a stale reference to classes in the jar. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3834633#3834633 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3834633 --- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException at runtime
Ok, thank you for your help. Yes, it might be a good idea to post your explanation on the wiki. Fred. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3834648#3834648 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3834648 --- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException at runtime
now availabe through the wiki. http://jboss.org/wiki/Wiki.jsp?page=HotDeployClassCastExceptions View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3834661#3834661 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3834661 --- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException
meerkat512 wrote : | Using PortableRemoteObject.narrow() also results in a ClassCastException. | | Does this definitely work for you in the situation where you have an entity EJB and the client is running in a different JVM than the server? | | When you write that I should not cast remote objects, is that a general J2EE principle, or something specifically that is not recommended because it doesn't work in JBoss? | This definately works and is in all the books about J2EE. It is not JBoss specific. However, you have to be careful that your client jars match the server jars exactly. If you recompile your program and the server and client side jars are not bases on the same compiled classes, then you will never get this to work. For in-VM JNDI lookup, a simple cast is sufficient (though probably only in JBoss with both client and server using the same UnifiedClassLoader. In principle the PortableRemoteObject.narrow makes sure that the differences between classloaders can be overcome. Joachim View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3822644#3822644 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3822644 --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException
My experience so far is, that also for remote interfaces and calls, the simple cast is enough in JBoss. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3822646#3822646 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3822646 --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException
The purpose of the PortableRemoteObject.narrow method is to handle the casting when the object uses IIOP as the transport mechanism (corba or RMI/IIOP) and has nothing to do with your problem. You should use this whenever downcast an object that may be using IIOP, the lookup of a home interface being one such occassion. The fact that you can get it to work when you set the thread context loader suggests that you have multiple copies of that interface in different class loaders. The cast will only work if you are casting to a class/interface loaded with the same classloader. Add some debug before the cast to walk the class and interface hierarchy of the objects, printing out the class AND classloader in each case. My guess is that you will find your FooHome interface loaded by multiple classloaders, perhaps in multiple jars. Identify and remove the duplicate entries and your problem will be solved. :-) View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3822654#3822654 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3822654 --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException
OK, I have found a workaround from this post: http://www.jboss.org/index.html?module=bbop=viewtopict=9102watch=topicstart=0 When I added the line | Thread.currentThread().setContextClassLoader(FooHome.class.getClassLoader()); | before my lookup, the code started working. Is this a bug with JBoss? It seems like an excessive hack to have to put a line like this before every JNDI lookup. Does anyone know a better solution for this problem? Thanks. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3822570#3822570 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3822570 --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException
meerkat512 wrote : | | | Object o = context.lookup(FooHome); | | FooHome home = (FooHome)o; | | | You should not just cast remote objects, that does not work. Use something like this: | object o=context.lookup(jndiName); | FooHome home=javax.rmi.PortableRemoteObject.narrow(o, FooHome.class); | That should do the trick. Joachim View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3822573#3822573 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3822573 --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
Re: [JBoss-user] [EJB/JBoss] - Re: ClassCastException
If you are using EJB 2.0 and the local clients, then I think you can get away with explicit casting as opposed to narrowing. Thanks, RS triathlon98 [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED]Subject: [JBoss-user] [EJB/JBoss] - Re: ClassCastException ceforge.net 02/23/2004 10:37 AM Please respond to jboss-user meerkat512 wrote : | | | Object o = context.lookup(FooHome); | | FooHome home = (FooHome)o; | | | You should not just cast remote objects, that does not work. Use something like this: | object o=context.lookup(jndiName); | FooHome home=javax.rmi.PortableRemoteObject.narrow(o, FooHome.class); | That should do the trick. Joachim View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3822573#3822573 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3822573 --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user This transmission is intended to be strictly confidential. If you are not the intended recipient of this message, you may not disclose, print, copy or disseminate this information. If you have received this in error, please reply and notify the sender (only) and delete the message. Unauthorized interception of this e-mail is a violation of federal criminal law. --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException
Hi, Using PortableRemoteObject.narrow() also results in a ClassCastException. Does this definitely work for you in the situation where you have an entity EJB and the client is running in a different JVM than the server? When you write that I should not cast remote objects, is that a general J2EE principle, or something specifically that is not recommended because it doesn't work in JBoss? Thanks, Dan View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3822617#3822617 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3822617 --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException thrown when looking up a remote home
View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3821897#3821897 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3821897 Both the client and server are using sdk1.4.2. What are the client jars you're reffering to? I thought the only thing the client needs are the remote EJB interfaces. Also, since JBoss uses dynamic proxies, I was under the impression that the only class that needs to be loaded at runtime during a lookup is the remote InvocationHandler class being used by the dynamic proxy. Is this correct or am I dreaming? Thanks in advance... --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException thrown when looking up a remote home
View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3821668#3821668 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3821668 Have you updated the client to use the client jars from the new version of JBoss instead of the old ones? Also are the server and client using the same JDK version? --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Re: ClassCastException on narrow
View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3820809#3820809 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3820809 Ok, that is interesting and we should document the errors better. The goal here is CLEARLY to have all the classes deployed ONCe (so you can talk cross service). Maybe the META-INF load should be loaded with a LOG message saying that the classes there will only see the classes defined. Then I am glad there are duplicate class logs. One visibility one package per class, very good --- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
