Multiple concurrency issues under heavy "stop/start" load
---------------------------------------------------------
Key: FELIX-2090
URL: https://issues.apache.org/jira/browse/FELIX-2090
Project: Felix
Issue Type: Bug
Components: Declarative Services (SCR)
Affects Versions: scr-1.4.0
Reporter: Felix Meschberger
Under certain circumstances -- mostly an update of much of the system induced
by tools like FileInstall or Sling JCR Install -- concurrency issues between
starting and stopping components may happen and cause all sorts of error
messages:
(1) Probably Activator method call failure, cannot be logged, because the log
method itself threw an NPE
12.02.2010 19:08:56.882 *ERROR* [SCR Component Actor] org.apache.felix.scr
Unexpected problem executing task Enable Component:
org.apache.sling.engine.impl.SlingMainServlet (17)
(java.lang.NullPointerException) java.lang.NullPointerException
at
org.apache.felix.scr.impl.BundleComponentActivator.log(BundleComponentActivator.java:590)
at
org.apache.felix.scr.impl.BundleComponentActivator.log(BundleComponentActivator.java:565)
at
org.apache.felix.scr.impl.manager.AbstractComponentManager.log(AbstractComponentManager.java:496)
at
org.apache.felix.scr.impl.helper.BaseMethod.invokeMethod(BaseMethod.java:232)
(2) After calling the activate method, the service registration fails because
the bundle has in the meantime been stopped (or is being stopped):
12.02.2010 19:08:57.882 *ERROR* [SCR Component Actor] org.apache.felix.scr
Unexpected problem executing task Enable Component:
org.apache.sling.scripting.javascript.internal.RhinoJavaScriptEngineFactory
(27) (java.lang.IllegalStateException: Can only register services while bundle
is active or activating.) java.lang.IllegalStateException: Can only register
services while bundle is active or activating.
at org.apache.felix.framework.Felix.registerService(Felix.java:2681)
at
org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:252)
at
org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:414)
at
org.apache.felix.scr.impl.manager.AbstractComponentManager.registerComponentService(AbstractComponentManager.java:425)
at
org.apache.felix.scr.impl.manager.AbstractComponentManager$Unsatisfied.activate(AbstractComponentManager.java:1009)
at
org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:298)
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