[ https://issues.apache.org/jira/browse/FELIX-6109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stephen Marquard updated FELIX-6109: ------------------------------------ Description: This error shows up intermittently in an OSGI application *ERROR* [org.osgi.service.cm.ManagedServiceFactory, id=13, bundle=6/file:/opt/ls/bundles/system/org.apache.felix.fileinstall-3.6.4.jar]: Unexpected problem updating configuration org.apache.felix.fileinstall.06a753e4-56fc-42fa-8a5b-c2b0b374581f java.lang.NullPointerException at org.apache.felix.fileinstall.internal.DirectoryWatcher.findListener(DirectoryWatcher.java:533) at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:460) at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:365) at org.apache.felix.fileinstall.internal.DirectoryWatcher.start(DirectoryWatcher.java:247) at org.apache.felix.fileinstall.internal.FileInstall.updated(FileInstall.java:254) at org.apache.felix.fileinstall.internal.FileInstall$ConfigAdminSupport$Tracker.updated(FileInstall.java:378) at org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.updated(ManagedServiceFactoryTracker.java:159) at org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.provideConfiguration(ManagedServiceFactoryTracker.java:93) at org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1400) at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:138) at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:105) at java.lang.Thread.run(Thread.java:748) The NPE seems to imply that there is a null listener in the list of listeners here: {code:java} ArtifactListener findListener(File artifact, List<ArtifactListener> listeners) { for (ArtifactListener listener : listeners) { if (listener.canHandle(artifact)) { return listener; } } return null; {code} I don't know how that situation arises (some type of race condition, given that it's unpredictable), but seems like it should be easy enough to check for and ignore. was: This error shows up intermittently in an OSGI application. {noformat} *ERROR* [org.osgi.service.cm.ManagedServiceFactory, id=13, bundle=6/file:/opt/ls/bundles/system/org.apache.felix.fileinstall-3.6.4.jar]: Unexpected problem updating configuration org.apache.felix.fileinstall.06a753e4-56fc-42fa-8a5b-c2b0b374581f java.lang.NullPointerException at org.apache.felix.fileinstall.internal.DirectoryWatcher.findListener(DirectoryWatcher.java:533) at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:460) at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:365) at org.apache.felix.fileinstall.internal.DirectoryWatcher.start(DirectoryWatcher.java:247) at org.apache.felix.fileinstall.internal.FileInstall.updated(FileInstall.java:254) at org.apache.felix.fileinstall.internal.FileInstall$ConfigAdminSupport$Tracker.updated(FileInstall.java:378) at org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.updated(ManagedServiceFactoryTracker.java:159) at org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.provideConfiguration(ManagedServiceFactoryTracker.java:93) at org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1400) at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:138) at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:105) at java.lang.Thread.run(Thread.java:748){noformat} The NPE seems to imply that there is a null listener in the list of listeners here: {code:java} ArtifactListener findListener(File artifact, List<ArtifactListener> listeners) { for (ArtifactListener listener : listeners) { if (listener.canHandle(artifact)) { return listener; } } return null; {code} I don't know how that situation arises (some type of race condition, given that it's unpredictable), but seems like it should be easy enough to check for and ignore. > NPE from null listener in DirectoryWatcher.findListener > ------------------------------------------------------- > > Key: FELIX-6109 > URL: https://issues.apache.org/jira/browse/FELIX-6109 > Project: Felix > Issue Type: Bug > Components: File Install > Affects Versions: fileinstall-3.6.4 > Reporter: Stephen Marquard > Priority: Major > > This error shows up intermittently in an OSGI application > > *ERROR* [org.osgi.service.cm.ManagedServiceFactory, id=13, > bundle=6/file:/opt/ls/bundles/system/org.apache.felix.fileinstall-3.6.4.jar]: > Unexpected problem updating configuration > org.apache.felix.fileinstall.06a753e4-56fc-42fa-8a5b-c2b0b374581f > java.lang.NullPointerException > at > org.apache.felix.fileinstall.internal.DirectoryWatcher.findListener(DirectoryWatcher.java:533) > at > org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:460) > at > org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:365) > at > org.apache.felix.fileinstall.internal.DirectoryWatcher.start(DirectoryWatcher.java:247) > at > org.apache.felix.fileinstall.internal.FileInstall.updated(FileInstall.java:254) > at > org.apache.felix.fileinstall.internal.FileInstall$ConfigAdminSupport$Tracker.updated(FileInstall.java:378) > at > org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.updated(ManagedServiceFactoryTracker.java:159) > at > org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.provideConfiguration(ManagedServiceFactoryTracker.java:93) > at > org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1400) > at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:138) > at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:105) > at java.lang.Thread.run(Thread.java:748) > > The NPE seems to imply that there is a null listener in the list of listeners > here: > > {code:java} > ArtifactListener findListener(File artifact, List<ArtifactListener> > listeners) > { > for (ArtifactListener listener : listeners) { > if (listener.canHandle(artifact)) { > return listener; > } > } > return null; > {code} > > > I don't know how that situation arises (some type of race condition, given > that it's unpredictable), but seems like it should be easy enough to check > for and ignore. > -- This message was sent by Atlassian JIRA (v7.6.3#76005)