[ecf-dev] ZooDiscovery causing a BundleException on startup (and only fo

["Patrick D." <pd4ecf@xxxxxxxxxxxxxx>]

Hello ECF Team,

I chose to use ECF as the communication framework for my thesis project. So far it is really working great. However I can't get rid of an exception when starting ZooDiscovery. It seems to happen every time, regardless of what other bundles are loaded and happens even if I only add the ZooDiscovery Bundle and its dependencies. The exception does not prevent ZooDiscovery from functioning. It works completely.

To not clog the message I uploaded the log to http://pastebin.com/N08zrp6s and attached it. Here's an excerpt, though:

!MESSAGE While loading class "org.eclipse.ecf.provider.zookeeper.node.internal.WriteRoot", thread "Thread[pool-1-thread-1,5,main]" timed out waiting (5000ms) for thread "Thread[Start Level Event Dispatcher,5,main]" to finish starting bundle "org.eclipse.ecf.provider.zookeeper_1.0.100.v20101029-1626 [13]". To avoid deadlock, thread "Thread[pool-1-thread-1,5,main]" is proceeding but "org.eclipse.ecf.provider.zookeeper.node.internal.WriteRoot" may not be fully initialized.
!STACK 0
org.osgi.framework.BundleException: State change in progress for bundle "initial@reference:file:plugins/org.eclipse.ecf.provider.zookeeper_1.0.100.v20101029-1626.jar/" by thread "Start Level Event Dispatcher".

[...]

This happens right after the start of the framework, and I have absolutely no idea why. I searched Google for a solution but only found an old message from myself with a different problem but the exception already present. This frustrates me a bit, because it means I'm obviously the only person that's getting it.

Can you tell me what's causing this? I have done fresh installations of Eclipse and ECF on different PCs and worked with different, small example projects, but the exception occurs every time.

Thanks in advance,

Patrick D.

!ENTRY org.eclipse.osgi 2 0 2011-01-08 17:32:21.696
!MESSAGE While loading class "org.eclipse.ecf.provider.zookeeper.node.internal.WriteRoot", thread "Thread[pool-1-thread-1,5,main]" timed out waiting (5000ms) for thread "Thread[Start Level Event Dispatcher,5,main]" to finish starting bundle "org.eclipse.ecf.provider.zookeeper_1.0.100.v20101029-1626 [13]". To avoid deadlock, thread "Thread[pool-1-thread-1,5,main]" is proceeding but "org.eclipse.ecf.provider.zookeeper.node.internal.WriteRoot" may not be fully initialized.
!STACK 0
org.osgi.framework.BundleException: State change in progress for bundle "initial@reference:file:plugins/org.eclipse.ecf.provider.zookeeper_1.0.100.v20101029-1626.jar/" by thread "Start Level Event Dispatcher".
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.beginStateChange(AbstractBundle.java:1077)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:282)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:417)
	at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:265)
	at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:106)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:453)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:393)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:469)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.eclipse.ecf.provider.zookeeper.node.internal.WatchManager$1.run(WatchManager.java:127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException
	... 17 more
Root exception:
org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.beginStateChange(AbstractBundle.java:1077)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:282)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:417)
	at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:265)
	at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:106)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:453)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:393)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:469)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.eclipse.ecf.provider.zookeeper.node.internal.WatchManager$1.run(WatchManager.java:127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

!ENTRY org.eclipse.osgi 2 0 2011-01-08 17:32:26.712
!MESSAGE While loading class "org.eclipse.ecf.provider.zookeeper.node.internal.ReadRoot", thread "Thread[pool-1-thread-2,5,main]" timed out waiting (5000ms) for thread "Thread[Start Level Event Dispatcher,5,main]" to finish starting bundle "org.eclipse.ecf.provider.zookeeper_1.0.100.v20101029-1626 [13]". To avoid deadlock, thread "Thread[pool-1-thread-2,5,main]" is proceeding but "org.eclipse.ecf.provider.zookeeper.node.internal.ReadRoot" may not be fully initialized.
!STACK 0
org.osgi.framework.BundleException: State change in progress for bundle "initial@reference:file:plugins/org.eclipse.ecf.provider.zookeeper_1.0.100.v20101029-1626.jar/" by thread "Start Level Event Dispatcher".
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.beginStateChange(AbstractBundle.java:1077)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:282)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:417)
	at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:265)
	at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:106)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:453)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:393)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:469)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.eclipse.ecf.provider.zookeeper.node.internal.WatchManager$2.run(WatchManager.java:137)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException
	... 17 more
Root exception:
org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.beginStateChange(AbstractBundle.java:1077)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:282)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:417)
	at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:265)
	at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:106)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:453)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:393)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:469)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.eclipse.ecf.provider.zookeeper.node.internal.WatchManager$2.run(WatchManager.java:137)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)