Re: Using RSE to debug running Java program - fails for me, what to do?

[Xuan Chen <xuanchen@xxxxxxxxxx>]

We don't recommand using Debug Job option to debug remote Java 
application.  Actually, it is not officially supported by WDSC Integrated 
Debugger.

For attaching to remote java application, you could use the Eclipse basic 
support for debugging remote java. 
Steps:

. Create a Java project in your workspace, with the java source your want 
to debug
. add the following options when the JVM is started:
-Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n
. Create a new Remote Java Applicaiton launch configuration, specifying 
the java project, Connection Properties (host name, and the port #, which 
is 8000 in this case), and debug the application.

Thanks,

Xuan Chen,  Problem Determination Tools for iSeries
(905) 413-3769 T/L 313-3769
xuanchen@xxxxxxxxxx





Thorbjørn Ravn Andersen <thunderaxiom@xxxxxxxxx> 
Sent by: wdsci-l-bounces@xxxxxxxxxxxx
02/19/2008 04:14 AM
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Websphere Development Studio Client for iSeries <wdsci-l@xxxxxxxxxxxx>


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Subject
Re: [WDSCI-L] Using RSE to debug running Java program - fails for me, what 
to do?






CRPence skrev  den 18-02-2008 16:43:
>    Since the CPF3CF2 is a generic "API failed" failure condition, I 
> think the best approach might be to locate the full details of the 
> joblog for the host error, to see if there are preceding error 
> conditions which give rise to the generic "API failed" message.  Having 
> just reviewed the text for that message, it seems to suggest doing that 
> [and the parameters specified, which would not be too easy given it is a 

> system debugger feature calling the API], and reporting the problem to 
> your service provider.
Thanks for your answer.  I asked our sysop to see if he could help me 
locate said details, but he could not locate anything.  He mentioned 
that apparently nothing was being logged.

I did a quick test and could attach the RSE debugger to a non-java job, 
so apparently something works.

If there is anybody out there willing to help me on this please just run 
the attached Java jar - e.g. with "java -jar count.jar 10000" in qsh - 
and locate it under "My Active Jobs" in Remote System Explorer, and 
right click "Debug as" -> "iSeries job.  I have also tried various 
unpacked variations as this might be a "the debugger only supports a 
class file" issue, but cannot identify any which works.

To avoid any suspicions of trojans, the meat of the class in the jar 
file is:

public static void main(String[] args) throws InterruptedException {
        int i = Integer.parseInt(args[0],10);
        while (i > 0) {
            System.out.println("i = " + i);
            Thread.sleep(1000);
            i = i - 1;
        }
    }


Thanks in advance for any help on this.  If I get it to work I'll write 
a summarizing article.

--
  Thorbjørn