| [SOLVED] Class Loader problem with batik: How to search dependencies ? [message #931810] |
Wed, 03 October 2012 10:49  |
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 Christophe Becavin
Messages: 13
Registered: April 2011
Location: France |
Junior Member |
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Hello,
I have been trying to integrate an SVG export in my Eclipse RCP software, but I have a problem when running the code:
!ENTRY org.eclipse.ui 4 0 2012-10-03 16:39:44.835
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.LinkageError: loader constraint violation: loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) previously initiated loading for a different type with name "org/w3c/dom/DOMImplementation"
at bob.ImageExportUtils.exportAWTasSVG(ImageExportUtils.java:51)
at bob.HeatMapView.widgetSelected(HeatMapView.java:692)
...
For running my software and have no problem with external jar files, I inserted all of them in a plugin bob.lib, created using the wizard "Plugin from jar files". This plugin is the only dependencies declared for my bob plugin (excepted of course the different org.eclipse.* plugin always needed)
I guess my problem come from the fact that bob.lib plugin contains different type of jar, and maybe two of them have both implemented org.w3c.dom.DOMImplementation, so a conflict is reached has the ClassLoader try to re-load an existing class.
I admit that the concept of ClassLoader is for me totally virtual (I understand the concept but never go in the deep code), so if you have a hint on my problem and know how to solve it using a specific Eclipse tool, like searchning in a plugin who is using a specific class, I would be pleased to hear it !
Thank you.
[Updated on: Tue, 16 October 2012 11:06] Report message to a moderator |
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