Re: Newbie query for JAVA on AS400

[Thorbjørn Ravn Andersen <thunderaxiom@xxxxxxxxx>]

Kelly Cookson wrote:

> Eclipse is great for developing Java. It has color coding, real-time messages 
> that provide useful information while coding, and an easy-to-use debugger. It's 
> also free. If we decide to run Java classes on the iSeries, I plan to develop 
> those classes with Eclipse.
>
> I imagine the WebSphere developer is comparable.
>  
I have found that the Fat Jar Eclipse Plugin 
(http://fjep.sourceforge.net/, link to update site) works very well when 
using Eclipse.  It allows to store jars inside jars creating a single 
executable jar file from multiple libraries and projects.  I basically 
follow this recipe:

1) Develop your program using the java toolbox on your pc.
2) For deployment to the iSeries, create a fat jar with your projects 
and libraries (right click menu on project) and tell it to deploy to the 
correct location on the network share provided by the iSeries machine.
3) From qsh on the iSeries, cd appropriately and run "java -jar 
whatever.jar".
4) It is possible to start in debug mode with the appropriate invocation 
and then attach the Eclipse debugger, but it is not a HotSpot JVM so you 
cannot hotdeploy.  Also in 5.3 I cannot tell the debugged program to quit.

WSDC provides automatic deployment and remote invocation, but is based 
on Eclipse 3.0 and some important things like Team Project Sets are not 
in that version.

Note also that the Eclipse Profiler has an adapter for iSeries, meaning 
that you can profile your stuff on the deployment platform.

--
 Thorbjørn