Aktuell ist es so, dass die Oberflächen zeitweise nicht verfügbar sind. Die Oberflächen sind erst wieder Erreichbar nachdem der OX Dienst gestoppt wurde und anschließend der Apache neugestartet wurde. Es gibt folgenden Traceback in der open-xchange.log.

Code:
!ENTRY com.openexchange.http.grizzly 4 0 2014-01-08 16:11:40.385
!MESSAGE FrameworkEvent ERROR
!STACK 0
java.lang.IllegalStateException: BundleContext is no longer valid
        at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.checkValid(BundleContextImpl.java:931)
        at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.ungetService(BundleContextImpl.java:634)
        at org.osgi.util.tracker.ServiceTracker.removedService(ServiceTracker.java:456)
        at
com.openexchange.osgi.DeferredActivator$DeferredServiceTracker.removedService(DeferredActivator.java
:173)
        at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:956)
        at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:1)
        at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:286)
        at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
        at
org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:894)
        at
org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceList
ener.java:107)
        at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
        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.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegis
try.java:819)
        at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:7
71)
        at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.j
ava:130)
        at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214)
        at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:43
3)
        at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:45
1)
        at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:95
0)
        at
com.openexchange.osgi.HousekeepingActivator.registerService(HousekeepingActivator.java:219)
        at
com.openexchange.osgi.HousekeepingActivator.registerService(HousekeepingActivator.java:229)
        at
com.openexchange.threadpool.osgi.ThreadPoolActivator.startBundle(ThreadPoolActivator.java:143)
        at com.openexchange.osgi.DeferredActivator.startUp(DeferredActivator.java:465)
        at
com.openexchange.osgi.DeferredActivator.signalAvailability(DeferredActivator.java:354)
        at
com.openexchange.osgi.DeferredActivator$DeferredServiceTracker.addingService(DeferredActivator.java:
155)
        at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932)
        at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1)
        at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
        at org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183)
        at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:317)
        at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261)
        at com.openexchange.osgi.DeferredActivator.init(DeferredActivator.java:270)
        at com.openexchange.osgi.DeferredActivator.start(DeferredActivator.java:439)
        at
com.openexchange.osgi.HousekeepingActivator.start(HousekeepingActivator.java:188)
        at
org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711)
        at java.security.AccessController.doPrivileged(Native Method)
        at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702
)
        at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:683)
        at
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381)
        at
org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:390)
        at
org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1176)
        at
org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:559)
        at
org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:544)
        at
org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:457)
        at
org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:24
3)
        at
org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:438)
        at
org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:1)
        at
org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
        at
org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)[/I]
Des Weiteren gibt es in der open-xchange-console.log folgende Einträge.

Code:
Full thread dump OpenJDK 64-Bit Server VM (14.0-b16 mixed mode):

"hz._hzInstance_1_server.domain.de.cached.thread-3" prio=10 tid=0x00007ffc581a8800 nid=0x1497 waiting on condition [0x00007f
fc578de000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x00007ffc6b5ebd30> (a java.util.concurrent.SynchronousQueue$TransferStack)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
        at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:451)
        at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:352)
        at java.util.concurrent.SynchronousQueue.take(SynchronousQueue.java:886)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:636)
        at com.hazelcast.impl.ExecutorThreadFactory$1.run(ExecutorThreadFactory.java:45)

Es wird die Version 7.4.0-12 genutzt.