Chetan Mehrotra created FELIX-5318: -------------------------------------- Summary: SCR causes startup to wait when bundle uninstall itself in activator Key: FELIX-5318 URL: https://issues.apache.org/jira/browse/FELIX-5318 Project: Felix Issue Type: Bug Components: Declarative Services (SCR) Reporter: Chetan Mehrotra Priority: Minor Fix For: scr-2.0.6
If a bundle which does not have any service component configured uninstall itself upon activation then SCR waits for latch to timeout in {{Activator$ScrExtension.destroy}} The threaddump indicate that FelixStartLevel thread is waiting for latch to timeout {noformat} "FelixStartLevel" daemon prio=10 tid=0x00007f4df45c5000 nid=0x65e6 waiting on condition [0x00007f4d92fcc000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000783400420> (a java.util.concurrent.CountDownLatch$Sync) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226) at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchronizer.java:1033) at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1326) at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:282) at org.apache.felix.scr.impl.Activator$ScrExtension.destroy(Activator.java:268) at org.apache.felix.utils.extender.AbstractExtender$2.run(AbstractExtender.java:290) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at org.apache.felix.utils.extender.AbstractExtender.destroyExtension(AbstractExtender.java:312) at org.apache.felix.utils.extender.AbstractExtender.bundleChanged(AbstractExtender.java:186) at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:916) at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:835) at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:517) at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4541) at org.apache.felix.framework.Felix.stopBundle(Felix.java:2600) at org.apache.felix.framework.Felix.uninstallBundle(Felix.java:2712) at org.apache.felix.framework.BundleImpl.uninstall(BundleImpl.java:1055) at com.foo.bar.Initializer.activate(Initializer.java:71) {noformat} This happens at [1] most likely because Framework has not invoked started yet so latch is not changed. As a fix destroy method should check if the bundle being stopped has any service component. If not it should then not wait on the latch [1] https://github.com/apache/felix/blob/trunk/scr/src/main/java/org/apache/felix/scr/impl/Activator.java#L280 -- This message was sent by Atlassian JIRA (v6.3.4#6332)