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It looks like there is a bug in WebSphere App Server related to which classloader is used at the time that Struts2 is loading the properties files, (all properties files, not just struts.properties and default.properties). The bug may have been fixed in WAS 6.0.2.9, (check out this link for details http://www-1.ibm.com/support/docview.wss?uid=swg27006876^{Image Removed}).

If you just want to confirm the issue, or you need just a temporary fix, try this:

1) jar up all properties files for your project, (including default.properties in its full path), and put these into the WS common applications lib directory at the same level as the "profiles" directory.
2) Run the application - everything should work

This solution is strictly temporary, as all struts2 apps in this instance of WAS would have to use the same properties files. A better solution:

1) add a servlet that initializes the Struts Dispatcher with the servlet context:

Code Block
java java
import org.apache.struts2.dispatcher.Dispatcher; public class LaunchServlet extends HttpServlet implements Servlet { public LaunchServlet() { super(); } public void init(ServletConfig arg0) throws ServletException { // this works around a bug in the websphere classloader. super.init(arg0); Dispatcher d = new Dispatcher(getServletContext(), new HashMap<String, String>()); } }

2) launch it at start-up (web.xml):

Code Block
xml xml
<servlet> <servlet-name>dummyaction</servlet-name> <servlet-class>com.xxx.yyyyyy.service.LaunchServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet>

3) Run application and everything should work.

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WebSphere 6.5

To make struts2 work in Websphere, one has to set Websphere specific properties, you may want to add that to the wiki:

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def findObjectName(objectId):
        index = objectId.find('(')
        return objectId[0 : index]

node = AdminNodeManagement.listNodes()[0]
server = AdminConfig.list('Server')

nodeName = findObjectName(node)
serverName = findObjectName(server)

webContainer = AdminConfig.list('WebContainer', node)
webContainerDetails = AdminConfig.show(webContainer)

if webContainerDetails.find("com.ibm.ws.webcontainer.assumefiltersuccessonsecurityerror") == -1:
        print "creating prop: com.ibm.ws.webcontainer.assumefiltersuccessonsecurityerror"
        AdminServerManagement.configureCustomProperty(nodeName, serverName, "WebContainer","com.ibm.ws.webcontainer.assumefiltersuccessonsecurityerror", "true")
if webContainerDetails.find("com.ibm.ws.webcontainer.invokefilterscompatibility") == -1:
        print "creating prop: com.ibm.ws.webcontainer.invokefilterscompatibility"
        AdminServerManagement.configureCustomProperty(nodeName, serverName, "WebContainer", "com.ibm.ws.webcontainer.invokefilterscompatibility", "true")

Thanks to Christoph Nenning (christoph dot nenning at lex-com at net)

JSESSIONID handling

IBM WebSphere Application Server uses the JSESSIONID information to keep track of the client session. If you have an application where the application client must navigate across multiple WebSphere Application Server nodes residing in same domain, then the JSESSIONID information may be over-written on the client because multiple JSESSIONID cookies received with the same name and path.

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