Jörg Hoh created FELIX-5138:
-------------------------------

             Summary: Felix should log underlying exception on failed bundle 
update
                 Key: FELIX-5138
                 URL: https://issues.apache.org/jira/browse/FELIX-5138
             Project: Felix
          Issue Type: Improvement
          Components: Framework
    Affects Versions: framework-5.0.1
            Reporter: Jörg Hoh


I run an application, which is based on Apache Sling. We recently updated our 
bundles and I faced this message; as outcome my.custom.bundle wasn't updated 
properly.

{noformat}
11.12.2015 14:09:36.753 *INFO* [FelixStartLevel] my.custom.bundle BundleEvent 
RESOLVED
11.12.2015 14:09:36.753 *INFO* [FelixStartLevel] my.custom.bundle BundleEvent 
STARTING

11.12.2015 14:09:36.754 INFO [OsgiInstallerImpl] 
org.apache.sling.installer.core.impl.tasks.BundleUpdateTask Removing failing 
update task - unable to retry: BundleUpdateTask: 
TaskResource(url=jcrinstall:/apps/myapp/install/my.custom.bundle-1.5.6-SNAPSHOT.jar,
 entity=bundle:my.custom.bundle, state=INSTALL, 
attributes=[org.apache.sling.installer.api.tasks.ResourceTransformer=:28:84:15:,
 Bundle-SymbolicName=my.custom.bundle, Bundle-Version=1.5.6-SNAPSHOT], 
digest=1449838063263)
org.osgi.framework.BundleException: Bundle my.custom.bundle [252] cannot be 
update, since it is either starting or stopping.
at org.apache.felix.framework.Felix.updateBundle(Felix.java:2311)
at org.apache.felix.framework.BundleImpl.update(BundleImpl.java:995)
at 
org.apache.sling.installer.core.impl.tasks.BundleUpdateTask.execute(BundleUpdateTask.java:92)
at 
org.apache.sling.installer.core.impl.OsgiInstallerImpl.doExecuteTasks(OsgiInstallerImpl.java:847)
at 
org.apache.sling.installer.core.impl.OsgiInstallerImpl.executeTasks(OsgiInstallerImpl.java:689)
at 
org.apache.sling.installer.core.impl.OsgiInstallerImpl.run(OsgiInstallerImpl.java:265)
at java.lang.Thread.run(Thread.java:767)
{noformat}

According to the code, Felix.updateBundle() prints this message only when 
acquireBundleLock() throws an IllegalStateException; and this IllegalStatement 
exception can have 2 different causes.
It would be good, if the log message contains an information, which of these 2 
reasons actually occurred. And it would be even better, if this action is 
actually retried, as this problem looks like a temporary issue for me.





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