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how to make sure eclipse load the velocity bundled with my jar [message #1688560]

Sat, 21 March 2015 01:56

Krishnaveni S

Messages: 4
Registered: April 2012

Junior Member

I have an eclipse plugin, i use velocity 1.7, which is bundled along with the plugin. When i install the plugin in eclipse and run it, i get the below exception from velocity engine.

The specified class for ResourceManager (org.apache.velocity.runtime.resource.ResourceManagerImpl) does n
ot implement org.apache.velocity.runtime.resource.ResourceManager; Velocity is not initialized correctly.
org.apache.velocity.exception.VelocityException: The specified class for ResourceManager (org.apache.velocity.runtime.re
source.ResourceManagerImpl) does not implement org.apache.velocity.runtime.resource.ResourceManager; Velocity is not ini
tialized correctly.
at org.apache.velocity.runtime.RuntimeInstance.initializeResourceManager(RuntimeInstance.java:725)
at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:263)
at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:646)
at org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:116)

I m trying this with Luna eclipse, jre 1.6

Could it be that some other velocity engine is used instead of the one bundled with the plugin
or
something wrong in the way i m calling velocity (the same code works fine with other eclipse..kepler/june etc)

please suggest some way to make eclipse use the velocity bundled with my plugin only.

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Re: how to make sure eclipse load the velocity bundled with my jar [message #1689388 is a reply to message #1688560]

Mon, 23 March 2015 13:16

Kaj Kandler

Messages: 36
Registered: July 2009
Location: Berlin, Germany

Member

Hi Krishnaveni,
from the looks of it I'd expect that there is another (version of) Velocity in play here, being loaded by some other classloader.

Can you describe how exactly you are "bundling" the velocity? Do you use a target platform? do you declare it there? Do you build your plugin with Tycho, or export it from the Eclipse app?

Where does the velocity jar and depedencies come from? A lib folder, maven artifacts, p2 repo, ...?

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