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Plugin packaging problem debugging #3

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sajjadpz opened this issue Sep 11, 2018 · 0 comments
Open

Plugin packaging problem debugging #3

sajjadpz opened this issue Sep 11, 2018 · 0 comments
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@nguyenLisa

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@sajjadpz
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sajjadpz commented Sep 11, 2018 •
edited

This ticket highlights the problems and possible way forward in order to debug and find a solution to package the plugin as install-able unit.

I have tried following approaches so far to package the plugin.

  1. Installing visu-flow plguin from within eclipse.
  2. Creating p2 url from installing plugin like any more eclipse plugin installation.
  3. Directly placing plugin jar inside eclipse's plugin folder.
  4. Using dropins to install the plugin.
  • Method 1&2 works as for the same instance of eclipse for which the plugin was installed, upon restarting the eclipse it will no longer start and keeps crashing.
  • Method 3&4 doesn't show if the plugin was installed in eclipse as you won't see any plugin specific menu in eclipse.

Debugging

Eclipse crashes by displaying the path to error-logs. In order to see the comprehensive logs when eclipse starts up , logging level should be set up following instructions mentioned in below link

https://stackoverflow.com/a/12480978/3349973

The exception that comes up upon starting eclipse and crashes is this

!ENTRY de.uni-paderborn.visuflow.plugin 4 0 2018-08-31 00:20:17.109
!MESSAGE [DataModel(1)] Could not load implementation object class de.unipaderborn.visuflow.model.impl.DataModelImpl
!STACK 0
java.lang.ClassNotFoundException: An error occurred while automatically activating bundle de.uni-paderborn.visuflow.plugin (25).
	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:123)
	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:505)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:328)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:392)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:470)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:419)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:411)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:609)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.initDependencyManagers(AbstractComponentManager.java:992)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.collectDependencies(AbstractComponentManager.java:1019)
	at org.apache.felix.scr.impl.manager.SingleComponentManager.getServiceInternal(SingleComponentManager.java:860)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:755)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.enableInternal(AbstractComponentManager.java:675)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.enable(AbstractComponentManager.java:430)
	at org.apache.felix.scr.impl.manager.ConfigurableComponentHolder.enableComponents(ConfigurableComponentHolder.java:657)
	at org.apache.felix.scr.impl.BundleComponentActivator.initialEnable(BundleComponentActivator.java:341)
	at org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:387)
	at org.apache.felix.scr.impl.Activator.access$200(Activator.java:52)
	at org.apache.felix.scr.impl.Activator$ScrExtension.start(Activator.java:262)
	at org.apache.felix.scr.impl.AbstractExtender.createExtension(AbstractExtender.java:196)
	at org.apache.felix.scr.impl.AbstractExtender.modifiedBundle(AbstractExtender.java:169)
	at org.apache.felix.scr.impl.AbstractExtender.addingBundle(AbstractExtender.java:139)
	at org.apache.felix.scr.impl.AbstractExtender.addingBundle(AbstractExtender.java:49)
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:475)
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:1)
	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
	at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:450)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:908)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:230)
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:137)
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:129)
	at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:191)
	at org.eclipse.osgi.container.Module.publishEvent(Module.java:476)
	at org.eclipse.osgi.container.Module.start(Module.java:467)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1682)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1661)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1624)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1555)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
Caused by: org.osgi.framework.BundleException: Error starting module.
	at org.eclipse.osgi.container.Module.doStart(Module.java:590)
	at org.eclipse.osgi.container.Module.start(Module.java:449)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:468)
	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:114)
	... 45 more
Caused by: java.lang.NoClassDefFoundError: org/eclipse/core/resources/IResourceChangeListener
	at java.base/java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:3090)
	at java.base/java.lang.Class.getConstructor0(Class.java:3295)
	at java.base/java.lang.Class.newInstance(Class.java:532)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.loadBundleActivator(BundleContextImpl.java:763)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:716)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1002)
	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:354)
	at org.eclipse.osgi.container.Module.doStart(Module.java:581)
	... 48 more
Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.core.resources (103).
	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:123)
	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:505)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:328)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:392)
	at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:466)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:419)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:411)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
	... 57 more
Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.core.resources.ResourcesPlugin.start() of bundle org.eclipse.core.resources.
	at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:800)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:729)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1002)
	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:354)
	at org.eclipse.osgi.container.Module.doStart(Module.java:581)
	at org.eclipse.osgi.container.Module.start(Module.java:449)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:468)
	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:114)
	... 66 more
Caused by: java.lang.IllegalStateException: The instance data location has not been specified yet.
	at org.eclipse.core.internal.runtime.DataArea.assertLocationInitialized(DataArea.java:56)
	at org.eclipse.core.internal.runtime.DataArea.getStateLocation(DataArea.java:133)
	at org.eclipse.core.internal.runtime.InternalPlatform.getStateLocation(InternalPlatform.java:574)
	at org.eclipse.core.runtime.Plugin.getStateLocation(Plugin.java:289)
	at org.eclipse.core.internal.resources.LocalMetaArea.<init>(LocalMetaArea.java:60)
	at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:478)
	at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:779)
	at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:772)
	... 73 more

!ENTRY de.uni-paderborn.visuflow.plugin 4 0 2018-08-31 00:20:17.111
!MESSAGE BundleComponentActivator : Bundle [25] Unexpected failure enabling component holder DataModel
!STACK 0
java.lang.IllegalStateException: Could not load implementation object class de.unipaderborn.visuflow.model.impl.DataModelImpl
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.initDependencyManagers(AbstractComponentManager.java:999)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.collectDependencies(AbstractComponentManager.java:1019)
	at org.apache.felix.scr.impl.manager.SingleComponentManager.getServiceInternal(SingleComponentManager.java:860)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:755)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.enableInternal(AbstractComponentManager.java:675)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.enable(AbstractComponentManager.java:430)
	at org.apache.felix.scr.impl.manager.ConfigurableComponentHolder.enableComponents(ConfigurableComponentHolder.java:657)
	at org.apache.felix.scr.impl.BundleComponentActivator.initialEnable(BundleComponentActivator.java:341)
	at org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:387)
	at org.apache.felix.scr.impl.Activator.access$200(Activator.java:52)
	at org.apache.felix.scr.impl.Activator$ScrExtension.start(Activator.java:262)
	at org.apache.felix.scr.impl.AbstractExtender.createExtension(AbstractExtender.java:196)
	at org.apache.felix.scr.impl.AbstractExtender.modifiedBundle(AbstractExtender.java:169)
	at org.apache.felix.scr.impl.AbstractExtender.addingBundle(AbstractExtender.java:139)
	at org.apache.felix.scr.impl.AbstractExtender.addingBundle(AbstractExtender.java:49)
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:475)
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:1)
	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
	at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:450)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:908)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:230)
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:137)
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:129)
	at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:191)
	at org.eclipse.osgi.container.Module.publishEvent(Module.java:476)
	at org.eclipse.osgi.container.Module.start(Module.java:467)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1682)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1661)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1624)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1555)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)

Problem: Eclipse crashes because it is unable to find resources required by visuflow plugin at its class-path.

Observe this part of error log

!ENTRY de.uni-paderborn.visuflow.plugin 4 0 2018-08-31 00:20:17.111
!MESSAGE BundleComponentActivator : Bundle [25] Unexpected failure enabling component holder DataModel
!STACK 0
java.lang.IllegalStateException: Could not load implementation object class de.unipaderborn.visuflow.model.impl.DataModelImpl

The DataModel and DataModelImpl class belongs to OSGI-Services, to read about OSGI services and how they work, follow reference linked mentioned below

Some reference links to understand the problem

Possible workarounds: Change plugin packaging approach, at the moment plugin doesn't follow the eclipse recommended plugin packaging structure . Which suggests that a plugin should be a feature, and that feature can have one or more plugins as part of its dependencies.
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