[Laszlo-dev] JRun 4 support / jdom

[Doug Hughes]

Hi,
 
For all intensive purposes, I'm a random person wandering in from the wilds
of the Web.  I haven't exactly "worked" with Laszlo yet in creating
applications or digging into the source code.
 
However, I installed the standard version of Laszlo and toyed briefly around
with it.  The thing is that I'm typically a ColdFusion developer so I tend
to work in JRun.  Because JRun is installed I'd prefer not to be required to
install Tomcat too.  Additionally, I might go so far as to guess that there
would be some interesting integration possibilities if I could get
ColdFusion and Laszlo running under one JRun instance.  
 
I've done some research and testing over the past few days and it's pretty
clear that Laszlo is not supported under JRun.  I'd like to see what I can
do to change this.  I know that at some point a year or more ago someone did
manage to get Laszlo to work under JRun.  
 
The problems I'm running into are a lack of instructions (I did manage to
get the app to start up at least), and errors related to jdom (details
below).
 
I'm new to servletts and Java is not my first (or second or third) language,
but I think it might be a fun and rewarding challenge to see if I can fix
this.  
 
My questions then really are:
 
1) Is there room in the community for someone who wants Laszlo to run on
JRun?  
 
2) Are there specific reasons JRun is not supported?
 
3) Are there resources and people who will be willing to help me out a
little as I get up to speed on this?
 
4) What sort of processes are gone though to begin official support for a
specific platform such as JRun?
 
5) Are there any hints on how someone might begin approaching the errors
listed below?
 
Thanks, I look forward to hearing back from you guys.
 
Here are the details I have on the errors.
 
When I access an lzx file (any that I've tried) I see this error returned
from JRun via the web browser.  This page has the title "JRun Servlet
Error":

500 org.jdom.Element.getContent(Lorg/jdom/filter/Filter;)Ljava/util/List;

org.jdom.Element.getContent(Lorg/jdom/filter/Filter;)Ljava/util/List; 
 
Info from the error log:
 
01/16 10:58:56 error
org.jdom.Element.getContent(Lorg/jdom/filter/Filter;)Ljava/util/List;
java.lang.NoSuchMethodError:
org.jdom.Element.getContent(Lorg/jdom/filter/Filter;)Ljava/util/List;
 at com.laszlosystems.server.Configuration.<init>(Configuration.java:59)
 at com.laszlosystems.server.LPS.initialize(LPS.java:60)
 at com.laszlosystems.servlets.LZServlet.initLPS(LZServlet.java:164)
 at com.laszlosystems.servlets.LZServlet.doGet(LZServlet.java:232)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
 at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
 at
jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:257)
 at
jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:527)
 at jrun.servlet.http.WebService.invokeRunnable(WebService.java:172)
 at
jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:457
)
 at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
 
Thanks again,
 
Doug Hughes
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.openlaszlo.org/pipermail/laszlo-dev/attachments/20050116/1849f231/attachment.htm