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mariarahat / bungeni-editor

Automatically exported from code.google.com/p/bungeni-editor
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OdfDocument.save(OdfDocument <>) throws LinkageError #109

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Running the Numbering & Renumbering Code (NumberingAgent.java) correctly 
numbers/renumbers a document (based on a metadata attribute in the document 
indicating whether the document requires or renumbering)....However running 
this file from BungeniEditor (actionEvent after selecting the "Number/Renumber" 
document bt), throws a LinkageError Exception: 

>>>
Exception in thread "AWT-EventQueue-0" java.lang.LinkageError: loader 
constraint violation: loader (instance of <bootloader>) previously initiated 
loading for a different type with name "org/w3c/dom/UserDataHandler"
END

Possible cause is that org/w3c/dom/UserDataHandler is already loaded by the 
custom classloaded used for the ExternalPlugins...and trying to reload the 
class causes the error.

Possible fixes :

1. Remove references to reloaded class...hope that System.gc() kicks in before 
OdfDocument.save() runs
2. Set the contextClassLoader to the ClassLoader running sectionNumbererPanel 
(contains ActionListener for 'Number/Renumber' button)
3. ****Unload the class before running the file (write custom classLoader...?)

4. Delay the loading of the class until the 'Numbering/Renumbering' button is 
selected...delete all references soon after.

Original issue reported on code.google.com by reaganmb...@gmail.com on 6 Mar 2012 at 10:08

GoogleCodeExporter commented 9 years ago 
Fixed....see r2257 
(http://code.google.com/p/bungeni-editor/source/detail?r=2257)

Original comment by reaganmb...@gmail.com on 7 Mar 2012 at 12:45