RAD/Struts 2 error/ Action class not found

[Jesus Angeles]

re:RAD/Struts 2 error/ Action class not found

All the files look normal; that is, in proper folders, etc. Any idea on this error?

It was okay without struts 2. When I added struts 2 a while ago, this is the error.

[4/2/08 5:35:26:667 SGT] 0000001f WebApp        E   [Servlet Error]-[/game/Login.jsp]: Action class [game.Login] not found - action - file:/C:/wd/RAD%2075/gameStoreEARWeb/WebContent/WEB-INF/classes/game.xml:12:64

I do have game.Login source file.

[Merrill Higginson]

Originally posted by Jesus Angeles:
I do have game.Login source file.

Do you have game.Login class file?

[Jesus Angeles]

Originally posted by Merrill Higginson:

Do you have game.Login class file?

It's been between this error, and this error below:

  [4/2/08 6:45:12:145 SGT] 0000001d WebApp        E   [Servlet Error]-[/game/Login.jsp]: java.lang.LinkageError: LinkageError while defining class: game.Login
Could not be defined due to: (game/Login) bad major version at offset=6
This is often caused by having a class defined at multiple
locations within the classloader hierarchy.  Other potential causes
include compiling against an older or newer version of the class
that has an incompatible method signature.
Dumping the current context classloader hierarchy:
    ==> indicates defining classloader
==>[0] 
com.ibm.ws.classloader.CompoundClassLoader@4d444d44
   Local ClassPath: C:\wd\RAD 75\gameStoreEARWeb\WebContent\WEB-INF\classes;C:\wd\RAD 75\gameStoreEARWeb\WebContent\WEB-INF\lib\commons-logging-1.0.4.jar;C:\wd\RAD 75\gameStoreEARWeb\WebContent\WEB-INF\lib\freemarker-2.3.8.jar;C:\wd\RAD 75\gameStoreEARWeb\WebContent\WEB-INF\lib\ognl-2.6.11.jar;C:\wd\RAD 75\gameStoreEARWeb\WebContent\WEB-INF\lib\struts2-core-2.0.11.1.jar;C:\wd\RAD 75\gameStoreEARWeb\WebContent\WEB-INF\lib\xwork-2.0.4.jar;C:\wd\RAD 75\gameStoreEARWeb\WebContent
   Delegation Mode: PARENT_FIRST
   [1] 
com.ibm.ws.classloader.CompoundClassLoader@672e672e
   Local ClassPath: C:\wd\RAD 75\gameStoreEAREJB\ejbModule
   Delegation Mode: PARENT_FIRST
   [2] com.ibm.ws.classloader.ProtectionClassLoader@27462746
   [3] com.ibm.ws.bootstrap.ExtClassLoader@71387138
   [4] org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader@8c608c6
   [5] sun.misc.Launcher$AppClassLoader@73a073a0
   [6] sun.misc.Launcher$ExtClassLoader@3e203e2
---Original exception---
java.lang.UnsupportedClassVersionError: (game/Login) bad major version at offset=6
at java.lang.ClassLoader.defineClassImpl(Native Method)  

The class file game.Login appeared after I fixed the classpath/jars.

Now I have the error above.

I already downloaded the latest jdk/jre, installed it, and deleted old class files, set the project's jre, and still I have this error.

[Merrill Higginson]

Originally posted by Jesus Angeles:
I already downloaded the latest jdk/jre, installed it.

That could very well be the problem. WebSphere 6.1 uses Java SDK 1.5, not 1.6. Make sure the compliance level is set to 5.0 on your project (properties->Java Compiler->JDK Compliance)

[Jesus Angeles]

Yes, that came to me too and googled on how to change the runtime for the WAS 6.

It is not possible?

[Merrill Higginson]

No, it is not possible to change the SDK for WAS 6. As I mentioned earlier, you cannot run Struts 2 at all on WAS 6.0 because of this issue, but you can run Struts 2 on WAS 6.1.

It is possible to change the compliance level of your module to 5.0 when you compile it in RAD, and that's what you will need to do to get past this error.
[ April 02, 2008: Message edited by: Merrill Higginson ]

[Jesus Angeles]

Thank you once again.

I put compliance to 1.5, and undid all 1.6 settings that I added.

It is working now.

Just out of curiousity, as a server expert, you feel WAS is a good competitor in the market in general? As I remember, it is one of the last to add support for ejb 3. Just wondering if I should add another server to my skillset.

[Merrill Higginson]

IBM operates in the business space of large, conservative companies who value stability and reliability over rapid adoption of the latest bleeding-edge technology. That's why they're slow, and most of their key customers follow the same pattern.

The market share for WebSphere is very high, so it's a good bet to know it. At the same time, it's also a good idea to get to know other, more progressive platforms just as a matter of keeping up with the latest technologies.

I'd suggest you download and try WAS Community Edition, which is basically the Apache Geronimo Server with a few IBM enhancements. Because it's open-source, it can adopt new technologies much faster than the commercial edition. There's also an Eclipse plugin available to aid in developing for it.