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From "Rob Ryan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FELIX-4883) ServiceComponentRuntime.getComponentConfigurationDTOs NullPointerException
Date Wed, 06 May 2015 19:51:00 GMT
Rob Ryan created FELIX-4883:

             Summary: ServiceComponentRuntime.getComponentConfigurationDTOs NullPointerException
                 Key: FELIX-4883
                 URL: https://issues.apache.org/jira/browse/FELIX-4883
             Project: Felix
          Issue Type: Bug
          Components: Declarative Services (SCR)
         Environment: Linux, Sling, Adobe CQ, org.apache.felix.scr version 1.8.3-R1658944
            Reporter: Rob Ryan

In our test automation we install a large set of bundles after our also large 'main' app starts
up. This causes significant churn as bundles and components are stopped and potentially new
versions are started. Unfortunately the coded involved is not open source, so I cannot deliver
the full data required to reproduce  the failure described here.

What I can share is that after all this churn of bundles and components being stopped and
started the ScrComponentRuntime service starts to fail with a NullPointerException in getComponentConfigurationDTOs.
This was initially noticed as an NPE being reported when visiting the felix console at /system/console/components.

The stack at the point of failure is:
	at org.apache.felix.scr.impl.runtime.ServiceComponentRuntimeImpl.serviceReferenceToDTO(ServiceComponentRuntimeImpl.java:205)
	at org.apache.felix.scr.impl.runtime.ServiceComponentRuntimeImpl.satisfiedRefManagersToDTO(ServiceComponentRuntimeImpl.java:169)
	at org.apache.felix.scr.impl.runtime.ServiceComponentRuntimeImpl.managerToConfiguration(ServiceComponentRuntimeImpl.java:145)
	at org.apache.felix.scr.impl.runtime.ServiceComponentRuntimeImpl.getComponentConfigurationDTOs(ServiceComponentRuntimeImpl.java:119)
	at com.robr.incqtest.test.ScrTest.test(ScrTest.java:37)

The NPE occurs because a org.apache.felix.framework.ServiceRegistrationImpl.ServiceReferenceImpl
being processed in org.apache.felix.scr.impl.runtime.ServiceComponentRuntimeImpl.serviceReferenceToDTO(org.osgi.framework.ServiceReference<?>)
line: 205	

has a m_svcObj of null. So even though the bundle is actually available in the object the
getBundle() method returns null.

[~cziegeler] [~bosschaert] I can investigate further to ideally narrow this down further,
but any pointers would be much appreciated.

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