RE: [OS-webwork] weird exception

[Jason Carreira]

Title: Message

Did that help you find the problem?

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Monday, September 22, 2003 4:20 PM
To: [EMAIL PROTECTED]
Subject: RES: [OS-webwork] weird exception

Ok, done. This is XW-92 :)

 

-----Mensagem original-----
De: Jason Carreira [mailto:[EMAIL PROTECTED]
Enviada em: segunda-feira, 22 de setembro de 2003 16:59
Para: [EMAIL PROTECTED]
Assunto: RE: [OS-webwork] weird exception

That's a misleading exception... please create a Jira issue for this. Here's the offending code:

 

protected void createAction() {
        // load action
        try {
            action = "" proxy.getConfig().getClazz().newInstance();
        } catch (Exception e) {
            throw new IllegalArgumentException("Unknown action name: " + e.getMessage());
        }
    }

 

It's either an InstantiationException or an IllegalAccessException, most likely, that's occurinig during newInstance()...

 

Make sure your Action has a public no-args constructor.

 

Jason

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Monday, September 22, 2003 3:36 PM
To: [EMAIL PROTECTED]
Subject: [OS-webwork] weird exception

Any ideas why this exception can be happening?

2003-09-22 16:25:15,303 DEBUG [com.opensymphony.xwork.DefaultActionProxy] Creating an DefaultActionProxy for namespace  and action name step1

2003-09-22 16:25:15,897 ERROR [com.opensymphony.webwork.dispatcher.ServletDispatcher] Could not execute action
java.lang.IllegalArgumentException: Unknown action name: null
        at com.opensymphony.xwork.DefaultActionInvocation.createAction(DefaultActionInvocation.java:175)
        at com.opensymphony.xwork.DefaultActionInvocation.init(DefaultActionInvocation.java:226)
        at com.opensymphony.xwork.DefaultActionInvocation.<init>(DefaultActionInvocation.java:64)
        at com.opensymphony.xwork.DefaultActionInvocation.<init>(DefaultActionInvocation.java:57)
        at com.opensymphony.xwork.DefaultActionProxyFactory.createActionInvocation(DefaultActionProxyFactory.java:29)
        at com.opensymphony.xwork.DefaultActionProxy.prepare(DefaultActionProxy.java:134)
        at com.opensymphony.xwork.DefaultActionProxy.<init>(DefaultActionProxy.java:78)
        at com.opensymphony.xwork.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:40)
        at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:163)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        (...)

Sounds weird, doesn't it? The first log message shows the action name, and then it's lost by the DefaultActionInvocation? How could I help you guys help me debug this, as a total WW2/XW1 newbie? :D

peace,
-cv