I would suggest that you start the Java VM that runs Roller, then
"attach" to it with the Eclipse debugger. Works great in Netbeans ;-)

- Dave



On 10/24/07, Richard Jones <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I've been trying to get Roller debuggable in Eclipse as described in
> this thread by Adib.  I've got a simple servlet project working using
> the same method, but when it comes to Roller I can't get it deployed.
>
> I'm using Roller 3.1, Eclipse 3.2 and Tomcat 5.5 on Ubuntu.  I have no
> problem deploying Roller as a Tomcat webapp on its own, but getting it
> deployed and debuggable through Eclipse is a different matter.  I have
> set-up 'Dynamic Web Project' and followed the steps as provided by
> Adib, but when I go to run/debug the application in Eclipse, Tomcat
> fails to deploy the webapp.  The roller.log reads:
>
>
> ERROR 2007-10-24 17:12:00,824 StandardContext:listenerStart - Skipped
> installing application listeners due to previous error(s)
> ERROR 2007-10-24 17:14:44,385 StandardContext:listenerStart - Error
> configuring application listener of class
> org.apache.roller.ui.core.RollerContext
> java.lang.NullPointerException
>         at java.util.Properties$LineReader.readLine(Properties.java:365)
>         at java.util.Properties.load(Properties.java:293)
>         at 
> org.apache.roller.ui.core.RollerContext.<init>(RollerContext.java:91)
>         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
> Method)
>         at 
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>         at 
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>         at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
>         at java.lang.Class.newInstance0(Class.java:350)
>         at java.lang.Class.newInstance(Class.java:303)
>         at 
> org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3713)
>         at 
> org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)
>         at 
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
>         at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
>         at 
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
>         at 
> org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
>         at 
> org.apache.catalina.core.StandardService.start(StandardService.java:448)
>         at 
> org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
>         at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
>         at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
> ERROR 2007-10-24 17:14:44,393 StandardContext:listenerStart - Skipped
> installing application listeners due to previous error(s)
>
>
> If any Roller + Eclipse developers out there have any suggestions...
> it would be greatly appreciated.
>
> Cheers,
>
> Richard
>
>
> On 23/10/2007, Richard Jones <[EMAIL PROTECTED]> wrote:
> > Many thanks guys!
> >
> > I'm going for Adib's method and I'm some making progress (although the
> > 15 minutes past a long time ago ;-)   I will post again when I either
> > get it working or give-up and have a question.
> >
> > Thanks again.
> >
> > - Richard
> >
> >
> > On 23/10/2007, Adib Saikali <[EMAIL PROTECTED]> wrote:
> > > Hi Richard,
> > >
> > > I have done all my customization to Roller in Eclipse, including debug. 
> > > You
> > > should be able to get setup in about 15 minutes. Here is how I did it.
> > >
> > > Environment:
> > >   - Eclipse Europa, with web tooling
> > >   - Tomcat 6.0.13
> > >   - postgres 8.2.4
> > >   - windows xp
> > >   - roller 3.1
> > >
> > > Steps to create the setup.
> > >
> > > 1. Create Dynamic Web Project in Eclipse
> > >
> > > 2. from the roller unzip dir copy webapp\roller\* into WebContent in 
> > > Eclipse
> > >
> > > 3. Create a source folder called resources
> > >
> > > 4. Move the contents of WebContent\WEB-INF\classes into the resources
> > > folder. This way you can make changes to .properties files and eclipse 
> > > will
> > > put them automatically into WEB-INF\classes
> > >
> > > 5.Create a source folder for your code, and put your customizations there.
> > > In my case I have only added models and changed some tags in roller for
> > > example the calendar tag to change the arrow buttons on it. My favourite
> > > method is to link the roller jars into the roller sources eclipse can do
> > > easily, that way you can navigate through the roller code easisly via
> > > eclipse shortcuts. Once I can navigate the code out I create my own models
> > > in my own packages which don't interfer with roller, that way I don't have
> > > to touch and recompile the roller intself.
> > >
> > > 6. If you want to make more major changes to roller, I would delete the
> > > roller specific jar files from WEB-INF\lib and then unzip the source code
> > > into a normal eclipse source folder, then hack on it as much as you want.
> > >
> > > 7. In WebContent\META-INF put a tomcat context.xml which points to your
> > > local database
> > >
> > > 8. Right click on the projcet > Run AS > Server Application and you will 
> > > be
> > > able to do debugging, hot code replace and all other great stuff you are
> > > used to doing with roller.
> > >
> > > hope this helps you
> > > Adib
> > >
> > > -----Original Message-----
> > > From: Richard Jones [mailto:[EMAIL PROTECTED]
> > > Sent: Monday, October 22, 2007 9:54 PM
> > > To: [email protected]
> > > Subject: Debugging Roller in Eclipse
> > >
> > > Hi,
> > >
> > > I've been customizing Roller for a while now, and just wanted to know
> > > if it's possible to set-up Roller to be debuggable in Eclipse.  I've
> > > got various (simpler) Java/Struts/Tomcat projects in Eclipse which I
> > > can use the Eclipse built-in debugger, but I've never been able to get
> > > Roller using it.  Just wanted to know whether to continue trying to
> > > get this working, or if it's not possible.
> > >
> > > Thanks in advance for your help.
> > >
> > > Cheers,
> > >
> > > Richard
> > >
> > >
> > >
> >
>

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