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Home » Eclipse Projects » Eclipse 4 » Eclipse 3.x to E4 uplift. Could not start styling support...A null service reference is not allowed
Eclipse 3.x to E4 uplift. Could not start styling support...A null service reference is not allowed [message #1726839] Wed, 16 March 2016 20:05 Go to next message
Matthew Vandenberg is currently offline Matthew VandenbergFriend
Messages: 2
Registered: March 2016
Junior Member
We have an RCP application that is running on the Eclipse 3.x platform and we're working on migrating it to pure E4 in the future. But just for now we're trying to pull in all the necessary dependencies. The app complies and runs but we get this stack trace at startup.
!ENTRY org.eclipse.ui 2 2 2016-03-15 14:34:36.241
!MESSAGE Could not start styling support.
!STACK 0
java.lang.NullPointerException: A null service reference is not allowed.
    at org.eclipse.osgi.internal.framework.BundleContextImpl.getService(BundleContextImpl.java:617)
    at org.eclipse.e4.ui.css.swt.internal.theme.BootstrapTheme3x.<init>(BootstrapTheme3x.java:38)
    at org.eclipse.e4.ui.css.swt.internal.theme.BootstrapTheme3x.<init>(BootstrapTheme3x.java:30)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2532)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1488)


There is one link out in the wild with a similar problem, but it's pretty out dated at this point. This is my first post so I can't include a link.

I've also made a post on stackOverflow but I haven't found much help there.

Any help would be very appreciated!

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Re: Eclipse 3.x to E4 uplift. Could not start styling support...A null service reference is not allo [message #1727298 is a reply to message #1726839] Mon, 21 March 2016 21:01 Go to previous messageGo to next message
Matthew Vandenberg is currently offline Matthew VandenbergFriend
Messages: 2
Registered: March 2016
Junior Member
Okay after much research I came across another post with a similar issue. I implemented this and it solved my problem.

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Re: Eclipse 3.x to E4 uplift. Could not start styling support...A null service reference is not allo [message #1728945 is a reply to message #1727298] Fri, 08 April 2016 14:33 Go to previous message
Eclipse UserFriend
Hmm, I don't know what that workaround works, but your problem is symptomatic of the org.eclipse.equinox.ds bundle not being started. That bundle implements the OSGi Declarative Services and is key.

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