Eclipse Community Forums: Eclipse 4 » Testing Eclipse 3.7 RCP app in Eclipse 4.2

Help

Home

Home » Eclipse Projects » Eclipse 4 » Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE

Show: Today's Messages :: Show Polls :: Message Navigator

Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #799934]

Thu, 16 February 2012 13:34

h1055071

Messages: 335
Registered: July 2009

Senior Member

My Eclipse RCP app runs just fine in Eclipse 3.7. However in 4.2 M5 not so. It compiles but when I try to run it I only get to see its splash screen and then:

java.lang.NullPointerException
at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.<init>(ModelServiceImpl.java:92)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createDefaultContext(E4Application.java:482)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:172)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:548)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:534)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at uk.ac.bolton.archimate.editor.Application.start(Application.java:59)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:352)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:624)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:579)
at org.eclipse.equinox.launcher.Main.run(Main.java:1433)
at org.eclipse.equinox.launcher.Main.main(Main.java:1409)

Did I miss something?

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #799954 is a reply to message #799934]

Thu, 16 February 2012 13:57

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Can you check if equinox.ds is in your launch config?

Tom

Am 16.02.12 14:34, schrieb Phil Beauvoir:
> My Eclipse RCP app runs just fine in Eclipse 3.7. However in 4.2 M5 not
> so. It compiles but when I try to run it I only get to see its splash
> screen and then:
>
> java.lang.NullPointerException
> at
> org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.<init>(ModelServiceImpl.java:92)
>
> at
> org.eclipse.e4.ui.internal.workbench.swt.E4Application.createDefaultContext(E4Application.java:482)
>
> at
> org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:172)
>
> at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:548)
> at
> org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
>
> at
> org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:534)
> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
> at uk.ac.bolton.archimate.editor.Application.start(Application.java:59)
> at
> org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
>
> at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
>
> at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
>
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:352)
>
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
>
> 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:597)
> at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:624)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:579)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1433)
> at org.eclipse.equinox.launcher.Main.main(Main.java:1409)
>
> Did I miss something?
>
>

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #799973 is a reply to message #799954]

Thu, 16 February 2012 14:21

h1055071

Messages: 335
Registered: July 2009

Senior Member

Tom,

no it wasn't. I added it and that didn't work. Then I added all the org.eclipse.equinox.* plug-ins to the launch config and hit "Add required Plug-ins". That got past the NPE and I could launch my RCP. It seems that the default "Add required Plug-ins" doesn't add the required plug-ins.

Now I have to figure out why RCP app looks like a mess in e4, why some menu items are missing, why Perspective IFolderLayouts don't disappear when devoid of Views and Editors, and why I can't drag views around the workspace...

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #799993 is a reply to message #799973]

Thu, 16 February 2012 14:47

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Yes - ds can't be resolved by "Add Required Plugins" because no-one has
a direct dependency on it. The check we had in M5 to give a more
reasonable error message didn't worked any more and we have rewritten it
for M6.

I think the biggest problem is most likely that the default css is not
loaded. If you have reproduceable problems please try to reduce them to
a minimum and file bugs so that we can fix them.

I'd also suggest you fetch one of the latest build - many problems might
already got fixed since M5 has been released!

Tom

Am 16.02.12 15:21, schrieb Phil Beauvoir:
> Tom,
>
> no it wasn't. I added it and that didn't work. Then I added all the
> org.eclipse.equinox.* plug-ins to the launch config and hit "Add
> required Plug-ins". That got past the NPE and I could launch my RCP. It
> seems that the default "Add required Plug-ins" doesn't add the required
> plug-ins.
>
> Now I have to figure out why RCP app looks like a mess in e4, why some
> menu items are missing, why Perspective IFolderLayouts don't disappear
> when devoid of Views and Editors, and why I can't drag views around the
> workspace...
>
>

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #800118 is a reply to message #799993]

Thu, 16 February 2012 18:08

Brian de Alwis

Messages: 242
Registered: July 2009

Senior Member

Include the org.eclipse.rcp *feature*. I'd guess from your description that you've not included a number of addons that clean up empty stacks, etc.

(Updated to correct auto-correct misspellings!)

[Updated on: Thu, 16 February 2012 18:09]

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #800168 is a reply to message #800118]

Thu, 16 February 2012 19:32

h1055071

Messages: 335
Registered: July 2009

Senior Member

I think I need to revisit this a bit later. I'm not sure what the best migration plan is from a mature and established 3.7 Eclipse RCP application (http://archi.cetis.ac.uk) with hundreds of users to an e4 application. Would it be best to re-write from scratch?

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #800240 is a reply to message #800168]

Thu, 16 February 2012 21:15

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

I would start refactoring the existing code base to the e4 programming
model using the e4 bridge - but like I said before if something does not
work when running your application on 4.x this is a bug in the compat
layer we'll address (unless you used some internal API).

Please provide us with informations what is not working and how we can
reproduce this.

Keeping your code base running on Eclipse 4.x without change is one of
our major selling points!

Tom

Am 16.02.12 20:32, schrieb Phil Beauvoir:
> I think I need to revisit this a bit later. I'm not sure what the best
> migration plan is from a mature and established 3.7 Eclipse RCP
> application (http://archi.cetis.ac.uk) with hundreds of users to an e4
> application. Would it be best to re-write from scratch?

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #800251 is a reply to message #800240]

Thu, 16 February 2012 21:33

h1055071

Messages: 335
Registered: July 2009

Senior Member

Thanks for the support, Tom.

What is the "e4 bridge"?

One thing I need to address is what dependencies to add to my app's main bundle manifest. For Eclipse 3.7 I have the following dependencies:

org.eclipse.core.runtime
org.eclipse.core.runtime.compatibility
org.eclipse.gef
org.eclipse.help.ui
org.eclipse.ui
org.eclipse.ui.forms
org.eclipse.ui.views
org.eclipse.ui.views.properties.tabbed

I'm guessing I need to add some e4-specific core dependencies?

Regards,

Phil

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #871680 is a reply to message #800240]

Mon, 14 May 2012 17:14

Alex Renger

Messages: 2
Registered: May 2012

Junior Member

Hello Mr. Schindl... you requested a way to reproduce the NullPointerException described by h1055071. I get this same error when I create a new RCP app within Eclipse 4.2. I first saw the problem in M6 and hoped it would be fixed in M7, but it still exists there. The "Hello RCP" example app gives the same NullPointerException.

I'll try including various things, as mentioned here in your exchange with h1055071 -- but please let us know if there's a simple/clean/quick way to solve this. In general this RCP thing seems pretty cool; thanks for your work on it.

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #871948 is a reply to message #871680]

Tue, 15 May 2012 07:37

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Make sure:
* equinox.ds
* equinox.event

Are in your launch configuration.

Tom

Am 14.05.12 19:14, schrieb Alex Renger:
> Hello Mr. Schindl... you requested a way to reproduce the
> NullPointerException described by h1055071. I get this same error when
> I create a new RCP app within Eclipse 4.2. I first saw the problem in
> M6 and hoped it would be fixed in M7, but it still exists there. The
> "Hello RCP" example app gives the same NullPointerException.
> I'll try including various things, as mentioned here in your exchange
> with h1055071 -- but please let us know if there's a simple/clean/quick
> way to solve this. In general this RCP thing seems pretty cool; thanks
> for your work on it.

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #871974 is a reply to message #871948]

Tue, 15 May 2012 08:32

Daniel Zimmermann

Messages: 81
Registered: July 2009

Member

As Tom states, try to fullfil the requirements as listed within Lars Vogels turorial (Dammit, I have not enough posts, so I cant send you the link! Search "vogella e4 compatibility" and you will find it! Sorry Tom, I know you've bloged about it, but it's far easier to find Lars' article Wink

).
I too still received errors and had some trouble with it afterwards, but I found is usefull to modify the existing product so far, that beside the plugins Lars mentioned in his article you only need to press the "add required plugins" button and voila...

Daniel

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #872140 is a reply to message #871974]

Tue, 15 May 2012 14:26

Alex Renger

Messages: 2
Registered: May 2012

Junior Member

OK, thanks Guys (Tom and Daniel). That does help.

Report message to a moderator

Re: Testing Eclipse 3.7 RCP app in Eclipse 4.2 - NPE [message #872161 is a reply to message #872140]

Tue, 15 May 2012 15:11

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

For RC1 we've added a require-bundle dependency on o.e.equinox.event and o.e.equinox.ds so that the anything generating the required bundle list will pick them up automatically.

PW

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

Report message to a moderator

Previous Topic:	how to change the width of MArea element
Next Topic:	Using favicons as title image for MPart in a Stack

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri Apr 19 10:57:38 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter