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From "Christian Schneider (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KARAF-5210) Seemingly random NPEs from Aether resolver
Date Fri, 04 Aug 2017 10:55:00 GMT

    [ https://issues.apache.org/jira/browse/KARAF-5210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16114238#comment-16114238
] 

Christian Schneider commented on KARAF-5210:
--------------------------------------------

Can you provide a small example project that reproduces the error?
We at least need the exact steps to reproduce.

> Seemingly random NPEs from Aether resolver
> ------------------------------------------
>
>                 Key: KARAF-5210
>                 URL: https://issues.apache.org/jira/browse/KARAF-5210
>             Project: Karaf
>          Issue Type: Bug
>    Affects Versions: 4.1.1
>         Environment: Windows
>            Reporter: Peter Berkman
>            Assignee: Jean-Baptiste Onofré
>             Fix For: 4.2.0, 4.1.2
>
>         Attachments: mvnsettings.xml, org.ops4j.pax.url.mvn.cfg
>
>
> We have an installer that automates much of our Karaf and product installation.  
> since the upgrade to Karaf 4.1, I've been getting these about every 5th automated install.
could be timing? Happens at random places and sometimes with dependencies that the target
doesn't have.
> One thing is that we do turn OFF internet access for maven through settings in the org.ops4j.pax.url.mvn.cfg
and provider our out mvnsettings.xml.  I will try and attach them later, but these are the
relevant settings:
> {code}
> org.ops4j.pax.url.mvn.settings=${karaf.etc}/mvnsettings.xml
> org.ops4j.pax.url.mvn.localRepository=${karaf.data}/repo
> org.ops4j.pax.url.mvn.useFallbackRepositories=false
> org.ops4j.pax.url.mvn.defaultRepositories=
> org.ops4j.pax.url.mvn.defaultLocalRepoAsRemote=true
> org.ops4j.pax.url.mvn.repositories= \
>     file:${karaf.home}/${karaf.default.repository}@id=system.repository@snapshots,\
>     file:${karaf.data}/kar@id=kar.repository@multi@snapshots
> {code}
> mvnsettings.xml:
> {code}
> <settings xmlns="http://maven.apache.org/SETTINGS/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>   xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd">
>   <localRepository>data/repo</localRepository>
> </settings>
> {code}
> Here is what the stack looks like - note that the target bundle is almost always different
on different failures.
> {code}
> 20170614 11:24:50.512 [INFO ] pipe-feature:install -v -r ngaudit | 10:org.apache.karaf.features.core
| org.apache.karaf.features.internal.service.FeaturesServiceImpl | Adding features: ngaudit/[10.0.0.SNAPSHOT,10.0.0.SNAPSHOT]
> 20170614 11:24:50.531 [ERROR] Thread-85 | 69:org.apache.karaf.shell.core | org.apache.karaf.shell.support.ShellUtil
| Exception caught while executing command
> org.apache.karaf.features.internal.util.MultiException: Error
>     at org.apache.karaf.features.internal.download.impl.MavenDownloadManager$MavenDownloader.<init>(MavenDownloadManager.java:84)[10:org.apache.karaf.features.core:4.1.1]
>     at org.apache.karaf.features.internal.download.impl.MavenDownloadManager.createDownloader(MavenDownloadManager.java:72)[10:org.apache.karaf.features.core:4.1.1]
>     at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:375)[10:org.apache.karaf.features.core:4.1.1]
>     at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:372)[10:org.apache.karaf.features.core:4.1.1]
>     at org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:187)[10:org.apache.karaf.features.core:4.1.1]
>     at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:285)[10:org.apache.karaf.features.core:4.1.1]
>     at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1170)[10:org.apache.karaf.features.core:4.1.1]
>     at org.apache.karaf.features.internal.service.FeaturesServiceImpl.lambda$doProvisionInThread$0(FeaturesServiceImpl.java:1069)[10:org.apache.karaf.features.core:4.1.1]
>     at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_92]
>     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_92]
>     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_92]
>     at java.lang.Thread.run(Thread.java:745)[:1.8.0_92]
> Caused by: java.io.IOException: Error downloading mvn:org.apache.karaf.jndi/org.apache.karaf.jndi.core/4.1.1
>     at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:81)[10:org.apache.karaf.features.core:4.1.1]
>     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[:1.8.0_92]
>     at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_92]
>     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)[:1.8.0_92]
>     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)[:1.8.0_92]
>     ... 3 more
> Caused by: java.lang.NullPointerException
>     at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.getLocalRepository(AetherBasedResolver.java:1095)[6:org.ops4j.pax.url.mvn:2.5.2]
>     at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.newSession(AetherBasedResolver.java:1011)[6:org.ops4j.pax.url.mvn:2.5.2]
>     at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:701)[6:org.ops4j.pax.url.mvn:2.5.2]
>     at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:659)[6:org.ops4j.pax.url.mvn:2.5.2]
>     at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:600)[6:org.ops4j.pax.url.mvn:2.5.2]
>     at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:567)[6:org.ops4j.pax.url.mvn:2.5.2]
>     at org.apache.karaf.features.internal.download.impl.MavenDownloadTask.download(MavenDownloadTask.java:47)[10:org.apache.karaf.features.core:4.1.1]
>     at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:60)[10:org.apache.karaf.features.core:4.1.1]
>     ... 7 more
> {code}
> Here is another one.  Note also that simply re-running the install works every time.
> {code}
> 20170615 06:43:45.551 [INFO ] pipe-feature:install -v -r ngam | 10:org.apache.karaf.features.core
| org.apache.karaf.features.internal.service.FeaturesServiceImpl | Adding features: ngam/[10.0.0.SNAPSHOT,10.0.0.SNAPSHOT]
> 20170615 06:43:45.564 [ERROR] Thread-82 | 69:org.apache.karaf.shell.core | org.apache.karaf.shell.support.ShellUtil
| Exception caught while executing command
> org.apache.karaf.features.internal.util.MultiException: Error
> 	at org.apache.karaf.features.internal.download.impl.MavenDownloadManager$MavenDownloader.<init>(MavenDownloadManager.java:84)[10:org.apache.karaf.features.core:4.1.1]
> 	at org.apache.karaf.features.internal.download.impl.MavenDownloadManager.createDownloader(MavenDownloadManager.java:72)[10:org.apache.karaf.features.core:4.1.1]
> 	at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:375)[10:org.apache.karaf.features.core:4.1.1]
> 	at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:372)[10:org.apache.karaf.features.core:4.1.1]
> 	at org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:187)[10:org.apache.karaf.features.core:4.1.1]
> 	at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:285)[10:org.apache.karaf.features.core:4.1.1]
> 	at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1170)[10:org.apache.karaf.features.core:4.1.1]
> 	at org.apache.karaf.features.internal.service.FeaturesServiceImpl.lambda$doProvisionInThread$0(FeaturesServiceImpl.java:1069)[10:org.apache.karaf.features.core:4.1.1]
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_92]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_92]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_92]
> 	at java.lang.Thread.run(Thread.java:745)[:1.8.0_92]
> Caused by: java.io.IOException: Error downloading mvn:org.apache.aries.jndi/org.apache.aries.jndi.url/1.1.0
> 	at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:81)[10:org.apache.karaf.features.core:4.1.1]
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[:1.8.0_92]
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_92]
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)[:1.8.0_92]
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)[:1.8.0_92]
> 	... 3 more
> Caused by: java.lang.NullPointerException
> 	at org.ops4j.pax.url.mvn.internal.config.MavenConfigurationImpl.isOffline(MavenConfigurationImpl.java:128)[6:org.ops4j.pax.url.mvn:2.5.2]
> 	at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.createSession(AetherBasedResolver.java:1082)[6:org.ops4j.pax.url.mvn:2.5.2]
> 	at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.newSession(AetherBasedResolver.java:1019)[6:org.ops4j.pax.url.mvn:2.5.2]
> 	at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:701)[6:org.ops4j.pax.url.mvn:2.5.2]
> 	at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:659)[6:org.ops4j.pax.url.mvn:2.5.2]
> 	at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:600)[6:org.ops4j.pax.url.mvn:2.5.2]
> 	at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:567)[6:org.ops4j.pax.url.mvn:2.5.2]
> 	at org.apache.karaf.features.internal.download.impl.MavenDownloadTask.download(MavenDownloadTask.java:47)[10:org.apache.karaf.features.core:4.1.1]
> 	at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:60)[10:org.apache.karaf.features.core:4.1.1]
> 	... 7 more
> {code}



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