Our application uses the karaf features service to install some features
programmatically. We recently noticed an exception in the logs that appears
to be in the eclipse.aether code:
org.apache.karaf.features.internal.util.MultiException: Error
at
org.apache.karaf.features.internal.download.impl.MavenDownloadManager$MavenDownloader.<init>(MavenDownloadManager.java:84)
at
org.apache.karaf.features.internal.download.impl.MavenDownloadManager.createDownloader(MavenDownloadManager.java:72)
at
org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:358)
at
org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:355)
at
org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:191)
at
org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:263)
at
org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1079)
at
org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:975)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Suppressed: java.io.IOException: Error downloading
mvn:org.apache.karaf.shell/org.apache.karaf.shell.core/4.0.2
at
org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:71)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at
java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
... 3 more
Caused by: java.util.ConcurrentModificationException
at
java.util.Hashtable$Enumerator.next(Hashtable.java:1367)
at
shaded.org.eclipse.aether.DefaultRepositorySystemSession.copySafe(DefaultRepositorySystemSession.java:378)
at
shaded.org.eclipse.aether.DefaultRepositorySystemSession.setSystemProperties(DefaultRepositorySystemSession.java:412)
at
shaded.org.apache.maven.repository.internal.MavenRepositorySystemUtils.newSession(MavenRepositorySystemUtils.java:130)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.createSession(AetherBasedResolver.java:805)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.newSession(AetherBasedResolver.java:789)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:553)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:528)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:506)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:481)
at
org.apache.karaf.features.internal.download.impl.MavenDownloadTask.download(MavenDownloadTask.java:34)
at
org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:58)
... 7 more
Suppressed: java.io.IOException: Error downloading
mvn:org.jledit/core/0.2.1
at
org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:71)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at
java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
... 3 more
Caused by: java.util.ConcurrentModificationException
at
java.util.Hashtable$Enumerator.next(Hashtable.java:1367)
at
shaded.org.eclipse.aether.DefaultRepositorySystemSession.copySafe(DefaultRepositorySystemSession.java:378)
at
shaded.org.eclipse.aether.DefaultRepositorySystemSession.setSystemProperties(DefaultRepositorySystemSession.java:412)
at
shaded.org.apache.maven.repository.internal.MavenRepositorySystemUtils.newSession(MavenRepositorySystemUtils.java:130)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.createSession(AetherBasedResolver.java:805)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.newSession(AetherBasedResolver.java:789)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:553)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:528)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:506)
at
org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:481)
at
org.apache.karaf.features.internal.download.impl.MavenDownloadTask.download(MavenDownloadTask.java:34)
at
org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:58)
... 7 more
Our environment:
* Karaf 4.0.2
* Oracle Java(TM) SE Runtime Environment (build 1.8.0_40-b26)
* Red Hat Enterprise Linux Server release 6.5
Is this something I need to report to the eclipse-aether team? Thanks!
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