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[udig-devel] Eclipse + ClassLoader + LocalCatalog 
Dear all,

I have the following problem.
I created a new data type from XML content.
When I run uDig for the time in a clean workspace, everything works well. I can create services that are displayed in the localcatalog view. When I close and try to run uDig once again, previously loaded services are loaded through the ServiceExtension extension. It seems that the XML parser used to load my service is the one from the JDK, not the xerces librairy I included in my plugin, not the xerces version included in the lib plugin. As I use Castor for XML mapping, I get an exception when reading XML content. 
I really believe it is a problem of classloader but I don't know what to do?

Any Idea ?
I already encountered a similar problem when embedding Jetty in uDig, I worked very well on first run but never again. I did not resolve this bug. This new problem let me say that it could be a problem with xml parsers as Jetty also uses XML for its configuration. 

Thanks for your help

Vincent.
PS: I did not forget my previous questions (one week ago) to display layers in a heriarchical manner, but I tried to diplay them first in a flat way. Can the members method on IGeoResource help me ?
Here is the console log (all log4j events were not present during first clean run) log4j:ERROR A "org.apache.log4j.PatternLayout" object is not assignable to a "org.apache.log4j.Layout" variable. 
log4j:ERROR The class "org.apache.log4j.Layout" was loaded by
log4j:ERROR [org.eclipse.core.runtime.adaptor.EclipseClassLoader@1d314cc] whereas object of type log4j:ERROR "org.apache.log4j.PatternLayout" was loaded by [org.eclipse.core.runtime.adaptor.EclipseClassLoader@cb754f]. 
log4j:ERROR No layout set for the appender named [A1].
log4j:ERROR A "org.apache.log4j.PatternLayout" object is not assignable to a "org.apache.log4j.Layout" variable. 
log4j:ERROR The class "org.apache.log4j.Layout" was loaded by
log4j:ERROR [org.eclipse.core.runtime.adaptor.EclipseClassLoader@1d314cc] whereas object of type log4j:ERROR "org.apache.log4j.PatternLayout" was loaded by [org.eclipse.core.runtime.adaptor.EclipseClassLoader@cb754f]. log4j:WARN No appenders could be found for logger (org.apache.axis.i18n.ProjectResourceBundle). 
log4j:WARN Please initialize the log4j system properly.
log4j:ERROR No layout set for the appender named [A1].
action.remove: 'elcl16/remove_co.gif' found action.remove
action.remove: 'dlcl16/remove_co.gif' found action.remove
Exception in thread "TsoChannelsWatcher, OASIS_TSO_CHANNELS_1_0" java.lang.RuntimeException: Could not instantiate parser org.apache.xerces.parsers.SAXParser: java.lang.ClassCastException: org.apache.xerces.parsers.XML11Configuration at org.exolab.castor.util.LocalConfiguration.getParser(LocalConfiguration.java:332) at org.exolab.castor.util.LocalConfiguration.getParser(LocalConfiguration.java:263) 
   at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:642)
   at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:565)
   at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:748)
at net.eads.irgs5.oasis.tsochannels.model.castor.TSO_Channel.unmarshalTSO_Channel(TSO_Channel.java:619) at net.eads.irgs5.oasis.tsochannels.catalog.TsoChannelsWatcher.run(TsoChannelsWatcher.java:157) 
   at java.lang.Thread.run(Unknown Source)
Here is a message I get since I updated from 1.0.5 to 1.1M2 : in ${workspace}/metadata/.log, maybe it can help. I get this message at each uDig run. 

!ENTRY org.eclipse.core.runtime 2 2 2006-02-01 20:03:21.820
!MESSAGE Job found still running after platform shutdown. Jobs should be canceled by the plugin that scheduled them during shutdown: net.refractions.udig.project.ui.internal.render.displayAdapter.impl.EventJob !SESSION Wed Feb 01 20:03:27 CET 2006 ------------------------------------------ 
!ENTRY org.eclipse.core.launcher 4 0 2006-02-01 20:03:27.335
!MESSAGE -showsplash
!STACK
java.io.IOException: CreateProcess: E:\udig_sdk_1.1M2-nightlybuild.26012006\eclipse -name Eclipse -showsplash 600 D:\dev\workspaces\uDig-workspace\.metadata\.plugins\org.eclipse.pde.core\uDig\org.eclipse.osgi\nl\fr\splash.bmp error=2 
   at java.lang.ProcessImpl.create(Native Method)
   at java.lang.ProcessImpl.<init>(Unknown Source)
   at java.lang.ProcessImpl.start(Unknown Source)
   at java.lang.ProcessBuilder.start(Unknown Source)
   at java.lang.Runtime.exec(Unknown Source)
   at java.lang.Runtime.exec(Unknown Source)
   at org.eclipse.core.launcher.Main.runCommand(Main.java:1565)
   at org.eclipse.core.launcher.Main.handleSplash(Main.java:1541)
   at org.eclipse.core.launcher.Main.basicRun(Main.java:276)
   at org.eclipse.core.launcher.Main.run(Main.java:973)
   at org.eclipse.core.launcher.Main.main(Main.java:948)

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