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jacob.dll already loaded in another classloader

user5729315Jan 18 2011 — edited Jan 20 2011
Hello,
We are migrating from Jinitiator to JRE and as recommended decided to use the latest version of JRE, however JRE 1.6.0.23 is giving the following error when executing the webutil function in our 10g Forms:

RegisterWebUtil - Loading WebUtil Version 10.1.2.3
proxyHost=null
proxyPort=0
connectMode=HTTP, native.
Forms Applet version is : 10.1.2.3
java.lang.ThreadDeath
at java.lang.Thread.stop(Unknown Source)
at java.lang.ThreadGroup.stopOrSuspend(Unknown Source)
at java.lang.ThreadGroup.stop(Unknown Source)
at sun.awt.AppContext.dispose(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppContextDisposer.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
RegisterWebUtil - Loading WebUtil Version 10.1.2.3
proxyHost=null
proxyPort=0
connectMode=HTTP, native.
Forms Applet version is : 10.1.2.3
Exception in thread "AWT-EventQueue-5" java.lang.UnsatisfiedLinkError: Native Library C:\Program Files\Java\jre1.6.0_23\bin\jacob.dll already loaded in another classloader at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at com.jacob.com.ComThread.<clinit>(ComThread.java:128)
at oracle.forms.webutil.ole.OleFunctions.create_obj(Unknown Source)
at oracle.forms.webutil.ole.OleFunctions.getProperty(Unknown Source)
at oracle.forms.handler.UICommon.onGet(Unknown Source)
at oracle.forms.engine.Runform.onGetHandler(Unknown Source)
at oracle.forms.engine.Runform.processMessage(Unknown Source)
at oracle.forms.engine.Runform.processSet(Unknown Source)
at oracle.forms.engine.Runform.onMessageReal(Unknown Source)
at oracle.forms.engine.Runform.onMessage(Unknown Source)
at oracle.forms.engine.Runform.processEventEnd(Unknown Source)
at oracle.ewt.lwAWT.LWComponent.redispatchEvent(Unknown Source)
at oracle.ewt.lwAWT.LWComponent.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)


The error is intermittent in nature but always occurs.
We have several 10g forms which are ran from the one application and the error occurs when closing the form.
I've installled previous versions 1.6.0.18, 1.6.0.22 and they work fine but as JAVA is rolled out at a corporate level newer versions will be rolled out when they are available.

Any suggestions?

Thanks
Michelle
This post has been answered by Andreas Leidner on Jan 19 2011
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Locked on Feb 17 2011
Added on Jan 18 2011
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