Eclipse Community Forums: Eclipse Platform » Application does not start after adding an aditional OSGi declarative service.

Home » Eclipse Projects » Eclipse Platform » Application does not start after adding an aditional OSGi declarative service.(After adding an OSGi declarative service that references an IResource )

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

Application does not start after adding an aditional OSGi declarative service. [message #1767367]

Wed, 05 July 2017 10:05

Vladimir Jaksic

Messages: 1
Registered: July 2017

Junior Member

I have a Problem with OSGi declarative services. I am referencing an IResource in my interface and therefore, the application suddenly fails to start with an error:

Caused by: java.lang.IllegalStateException: The instance data location has not been specified yet.

And

java.lang.NoClassDefFoundError: org/eclipse/core/resources/IResource.

I have tried adding the org.eclipse.core.resources to the required bundles in the manifest, but to no avail. Any clues about bringing this about?

I have added the full exception trace to the attachments.

Attachment: exception_trace.log
(Size: 440.99KB, Downloaded 14 times)

Report message to a moderator

Re: Application does not start after adding an aditional OSGi declarative service. [message #1767394 is a reply to message #1767367]

Wed, 05 July 2017 15:19

Brian de Alwis

Messages: 756
Registered: January 2012

Senior Member

Referencing `IResource` isn't a problem in itself, but your service is being activated, causing the JVM to load the referenced class definitions, before the Eclipse workspace is available. `org.eclipse.core.resources`'s Bundle Activator tries to restore the workspace, which requires accessing the OSGi `osgi.instance.area` location, which has not yet been set.

It's hard to say more without knowing more about your declarative service. A few possible ways to avoid this issue include (1) using the IAdapter mechanism to avoid specifying IResource in your method signatures, (2) adding a dependency on the IWorkspace service (exposed by `org.eclipse.core.resources`) so that your service won't be available until the workspace has been started.

Brian.

Eclipse Platform committer. Ask me about Eclipse support, training, and consulting.

Report message to a moderator

Previous Topic:	eclipse lock jar files
Next Topic:	Access restriction: The type 'String' is not API (restriction on required library '/opt/jdk1.7.0_51/

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Tue Jun 19 14:56:22 GMT 2018

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter