Hello,
One of my testcases intermittently throws an exception during shutdown. I
have managed to recreate the exception under a debugger, and it shows two
threads trying to unregister the same service. The test fails only when
declarative services are used. I am using Felix 1.0.0. The test uses
multiple versions of a bundle, but I am not sure if that has anything to do
with the exception.
The exception thrown is:
--- Exception with component : Unexpected problem executing task ---
java.lang.IllegalStateException: Service already unregistered.
at org.apache.felix.framework.ServiceRegistrationImpl.unregister(
ServiceRegistrationImpl.java:105)
at
org.apache.felix.scr.AbstractComponentManager.unregisterComponentService(
AbstractComponentManager.java:503)
at org.apache.felix.scr.AbstractComponentManager.deactivateInternal(
AbstractComponentManager.java:369)
at org.apache.felix.scr.AbstractComponentManager.access$200(
AbstractComponentManager.java:55)
at org.apache.felix.scr.AbstractComponentManager$3.run(
AbstractComponentManager.java:176)
at org.apache.felix.scr.ComponentActorThread.run(
ComponentActorThread.java:81)
Here is the stack trace of the two threads under the debugger (both are
using the same object):
Thread [FelixStartLevel] (Suspended (breakpoint at line 97
in ServiceRegistrationImpl))
ServiceRegistrationImpl.unregister() line: 97
ServiceRegistry.unregisterServices(Bundle) line: 119
Felix._stopBundle(FelixBundle, boolean) line: 1946
Felix.stopBundle(FelixBundle, boolean) line: 1866
Felix.setFrameworkStartLevel(int) line: 1080
StartLevelImpl.run() line: 258
Thread.run() line: 803
Thread [SCR Component Actor] (Suspended (breakpoint at line
97 in ServiceRegistrationImpl))
ServiceRegistrationImpl.unregister() line: 97
ImmediateComponentManager(AbstractComponentManager).unregisterComponentService()
line: 503
ImmediateComponentManager(AbstractComponentManager).deactivateInternal()
line: 369
AbstractComponentManager.access$200(AbstractComponentManager)
line: 55
AbstractComponentManager$3.run() line: 176
ComponentActorThread.run() line: 81
The exception thrown is the IllegalStateException from
public void unregister()
{
if (m_svcObj != null)
{
m_registry.unregisterService(m_bundle, this);
m_svcObj = null;
m_factory = null;
}
else
{
* throw new IllegalStateException("Service already
unregistered.");
* }
}
Thank you...
Regards,
Rajini
