Re: [equinox-dev] Where can I find equinox docs?

[Jeff McAffer <Jeff_McAffer@xxxxxxxxxx>]

There is an increasing amount of doc
on the equinox wiki.  At least some of your questions are covered
there.

Note that your poarticular query about
how to use ...internal... packages will not be covered as those packages
are internal and are thus not API and so not particularly documented.  

the Launcher issue you are experiencing
is because the DevFramework launch configuration is for something else.
 Don't use it.  If you want to debug, just check out org.eclipse.osge
into an Eclipse image and run it using an Equinox launch configuration
of your own making.  Everything should click along smoothly.

Jeff

"Vladimir Nikolov (WEB)" <vlad666@xxxxxx>
Sent by: equinox-dev-bounces@xxxxxxxxxxx

10/05/2006 01:59 AM

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Subject	Re: [equinox-dev] Where can I find equinox docs?

Thank you for your reply John.

Well, the website (www.elipse.org/equinox/documents/) seems not to 
provide the infos I need ...
I want to investigate equinox as an standalone osgi implementation.
The org.eclipse.osgi_3.2.0.v20060601.jar (delivered with my Eclipse 
version) works fine standalone, as described on the equinox quickstart
guide, but I want to debug the framework. For that reason, I checked out
the 'org.eclipse.osgi' code tree from the CVS server 
(dev.eclipse.org/cvsroot/eclipse), created the provided eclipse project
and tried to debug it. Using the predefined Debug configuration of the
project (DevFramework), throws some exceptions on startup:

    java.lang.reflect.InvocationTargetException
    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 
org.eclipse.osgi.framework.launcher.Launcher.doAdaptor(Launcher.java:302)
    at org.eclipse.osgi.framework.launcher.Launcher.doIt(Launcher.java:128)
    at org.eclipse.osgi.framework.launcher.Launcher.main(Launcher.java:107)
Caused by: java.lang.NullPointerException
    at 
org.eclipse.core.runtime.adaptor.LocationManager.getOSGiConfigurationDir(LocationManager.java:341)
    at 
org.eclipse.core.runtime.adaptor.LocationManager.getConfigurationFile(LocationManager.java:350)
    at 
org.eclipse.core.runtime.adaptor.LocationManager.initializeDerivedConfigurationLocations(LocationManager.java:197)
    at 
org.eclipse.core.runtime.adaptor.LocationManager.initializeLocations(LocationManager.java:157)
    at org.eclipse.osgi.baseadaptor.BaseAdaptor.<init>(BaseAdaptor.java:95)
    ... 7 more

It seems that the framework starts with an 
org.eclipse.osgi.framework.launcher.Launcher class, which is different
from the Main-Class (org.eclipse.core.runtime.adaptor.EclipseStarter) 
used in the org.eclipse.osgi_3.2.0.v20060601.jar file. I've tried to do
it as configured in the .jar file and took the 
org.eclipse.core.runtime.adaptor.EclipseStarter as Main Class for the 
project startup. Debugging failed then on storage initialization:

java.lang.NullPointerException
    at 
org.eclipse.osgi.baseadaptor.BaseAdaptor.initializeStorage(BaseAdaptor.java:124)
    at 
org.eclipse.osgi.framework.internal.core.Framework.initialize(Framework.java:149)
    at 
org.eclipse.osgi.framework.internal.core.Framework.<init>(Framework.java:122)
    at 
org.eclipse.osgi.framework.internal.core.OSGi.createFramework(OSGi.java:90)
    at org.eclipse.osgi.framework.internal.core.OSGi.<init>(OSGi.java:31)
    at 
org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:273)
    at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:161)
    at 
org.eclipse.core.runtime.adaptor.EclipseStarter.main(EclipseStarter.java:138)
Exception in thread "main" java.lang.NullPointerException
    at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:207)
    at 
org.eclipse.core.runtime.adaptor.EclipseStarter.main(EclipseStarter.java:138)

I also found out, that even before 'initializeStorage()' the BaseAdaptor
constructor cannot get a valid 'storage' value, because there are no 
StorageHooks present in the hookRegistry. But why, can you tell me what
is going wrong? Probably I am trying to accomplish the intended in a 
wrong way?

So, again my question: how should I go about debugging equinox as 
standalone osgi framework, and where can I get some knowledge about all
the stuff like different start configs, properties, hooks, storage 
organization and s.o.

Regards

Vlad


John Arthorne schrieb:
>
> Most, if not all, of the available doc is linked from here:
>
> http://www.eclipse.org/equinox/
>
> In particular, see the "documents" link on the right hand
side of this 
> page.
>
> John
>
>
>
> *"Vladimir Nikolov (WEB)" <vlad666@xxxxxx>*
> Sent by: equinox-dev-bounces@xxxxxxxxxxx
>
> 04/10/2006 12:17 PM
> Please respond to
> Equinox development mailing list <equinox-dev@xxxxxxxxxxx>
>
>
>                  
> To
>                  equinox-dev@xxxxxxxxxxx
> cc
>                  
> Subject
>                  [equinox-dev]
Where can I find equinox docs?
>
>
>
>                  
>
>
>
>
>
> Hi,
> Is there any kind of documentation on equinox's core (org.eclipse.osgi
> package) ? I did not find any references on the website, or elsewhere.
> Where can I get some information on start-configurations (config files,
> adapter, launcher, ...), equinox-core
> (org.eclipse.osgi.framework.internal.core API spec.) and s.o. ?
> It would be very helpful for me to have some gathered information,
> instead of just debugging like hell ...
> Thanks in advance!
> Greetings,
>    Vlad
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