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EclipseLogListener Unhandled event loop exception - instance of org/eclipse/osgi/internal/baseadapto [message #1857328]

Tue, 31 January 2023 04:32

floid costa

Messages: 2
Registered: January 2023

Junior Member

using felix but for one of the packages getting

java.lang.LinkageError: loader constraint violation: loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader)

package listing shows only one bundle its resolved from.

how to further resolve the above issue

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Re: EclipseLogListener Unhandled event loop exception - instance of org/eclipse/osgi/internal/basead [message #1857333 is a reply to message #1857328]

Tue, 31 January 2023 13:13

Thomas Watson

Messages: 503
Registered: July 2009

Senior Member

I'm unsure why the very old (DefaultClassLoader) from Equinox would be getting used at all with the felix framework. Much more information is needed on the scenario to give any advise here. For example, the stack trace and environment, steps to reproduce.

I will say that org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader hasn't been in the Equinox codebase for 9 years, could be fixed in a more recent release of Equinox

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Re: EclipseLogListener Unhandled event loop exception - instance of org/eclipse/osgi/internal/basead [message #1857342 is a reply to message #1857333]

Wed, 01 February 2023 08:14

floid costa

Messages: 2
Registered: January 2023

Junior Member

we are using org.eclipse.equinox.launcher_1.3.0-SDK-4.2.1.jar to launch, felix is using to create the bundles

we have a common system bundle which provides common tasks like logging.

The system bundle is in resolved status and is used across the other bundles

osgi> packages com.test.system.instrument.measurement
com.test.system.instrument.measurement; version="3.4.0"<com.test.system.instrument_3.4.0 [64]>
com.test.common.string_1.4.0 [9] imports

when the bundle is used we are getting

SEVERE: [{ERROR - MISSING RESOURCE}{RESOURCE KEY - com.test.rcp.viewer.utility.EclipseLogListener Unhandled event loop exception}]
Jan 27, 2023 4:22:27 PM com.test.rcp.viewer.utility.EclipseLogListener logging
SEVERE: [{ERROR - MISSING RESOURCE}{RESOURCE KEY - com.test.rcp.viewer.utility.EclipseLogListener }]
java.lang.LinkageError: loader constraint violation: loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) previously initiated loading for a different type with name "com/test/system/instrument/measurement/Measurement"
at com.test.markup.conversion.impl.RtfConverter.convert(RtfConverter.java:172)
at com.test.rcp.core.utility.RTFUtility.getHTMLBytesFromRTFContent_ThrowsException(RTFUtility.java:75)
at com.test.rcp.core.utility.RTFUtility.getHTMLBytesfromRTFFile(RTFUtility.java:107)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at com.test.rcp.viewer.firstnet.view.FirstnetSearchView$11$1.run(FirstnetSearchView.java:626)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at com.test.rcp.viewer.Application.lambda$start$1(Application.java:183)
at java.security.AccessController.doPrivileged(Native Method)
at com.test.rcp.viewer.Application.start(Application.java:179)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)

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