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Home » Eclipse Projects » Babel » Babel update site resetting the TCP connection when downloading the artifacts(Babel update site resetting the TCP connection when downloading the artifacts)
icon9.gif  Babel update site resetting the TCP connection when downloading the artifacts [message #1725918] Tue, 08 March 2016 13:55 Go to next message
Dmitriy Grintshak is currently offline Dmitriy GrintshakFriend
Messages: 4
Registered: March 2016
Junior Member

I have very weird behaviour of Maven build, which is downloading some artifacts from the Babel repository with Tycho.

The Maven build fails randomly with errors like the one below, on one of the following artifacts (the list is not complete):
- org.eclipse.core.contenttype.nl_de
- org.eclipse.core.databinding.beans.nl_de

During the analysis, I excluded the corporate proxies (the build works in the same manner in the public network), and discovered with Wireshark, that I am receiving TCP RST at some moment from the update site.
At the same time, the build is working for my colleague.
The Maven version is 3.0.5, tried different Tycho versions (0.15.0 - 0.23.0), tried different targets (Kepler, Helios...).

I discovered similar issue, which seems to be still open (
What could be the reason, for which the update site drops the connections?

The stack trace from Maven:

[INFO] Fetching org.eclipse.core.contenttype.nl_de_3.6.0.v20121120125106.jar (2.58kB of 2.58kB at 0B/s) from
[INFO] Downloading org.eclipse.core.databinding.beans.nl_de
[ERROR] Internal error: java.lang.NullPointerException -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: java.lang.NullPointerException
        at org.apache.maven.DefaultMaven.execute(
        at org.apache.maven.cli.MavenCli.execute(
        at org.apache.maven.cli.MavenCli.doMain(
        at org.apache.maven.cli.MavenCli.main(
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(
        at java.lang.reflect.Method.invoke(
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(
Caused by: java.lang.NullPointerException
        at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.downloadArtifact(
        at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.downloadArtifact(
        at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifact(
        at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.getArtifact(
        at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.transferSingle(
        at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.transfer(
        at org.eclipse.tycho.p2.maven.repository.MavenMirrorRequest.perform(
        at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifact(
        at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifacts(
        at org.eclipse.equinox.internal.p2.artifact.repository.CompositeArtifactRepository.getArtifacts(
        at org.eclipse.tycho.p2.impl.resolver.P2ResolverImpl.resolveProject(
        at org.eclipse.tycho.p2.impl.resolver.P2ResolverImpl.resolveProject(
        at org.eclipse.tycho.p2.resolver.P2TargetPlatformResolver.doResolvePlatform(
        at org.eclipse.tycho.p2.resolver.P2TargetPlatformResolver.resolveDependencies(
        at org.eclipse.tycho.core.resolver.DefaultTychoDependencyResolver.resolveProject(
        at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(
        at org.apache.maven.DefaultMaven.doExecute(
        at org.apache.maven.DefaultMaven.execute(
        ... 11 more
Re: Babel update site resetting the TCP connection when downloading the artifacts [message #1726225 is a reply to message #1725918] Thu, 10 March 2016 15:41 Go to previous message
Dmitriy Grintshak is currently offline Dmitriy GrintshakFriend
Messages: 4
Registered: March 2016
Junior Member
After further investigation, I found, that the update site is causing the issue. I replied to the thread, and closing this one.

[Updated on: Thu, 10 March 2016 15:41]

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