...
17-Sep-2015 20:32:47 Publishing an artifact: Artifact Name
2015-10-26 23:00:47,524 WARN [2-BAM::cupertino2::Agent:pool-5-thread-1] [AbstractArtifactManager] Unable to publish artifact Shared artifact: [Artifact Name], pattern: [**/*] for UNITTEST
java.lang.RuntimeException: java.net.SocketException: Broken pipe
        at com.atlassian.bamboo.build.artifact.BambooArtifactHttpTransport.publish(BambooArtifactHttpTransport.java:211)
        at com.atlassian.bamboo.build.artifact.BambooRemoteArtifactHandler.publish(BambooRemoteArtifactHandler.java:54)
        at com.atlassian.bamboo.build.artifact.AbstractArtifactManager$1.call(AbstractArtifactManager.java:214)
        at com.atlassian.bamboo.build.artifact.AbstractArtifactManager$1.call(AbstractArtifactManager.java:207)
        at com.atlassian.bamboo.plugin.BambooPluginUtils.callUnsafeCode(BambooPluginUtils.java:132)
        at com.atlassian.bamboo.build.artifact.AbstractArtifactManager.publishFileSet(AbstractArtifactManager.java:206)
        at com.atlassian.bamboo.build.artifact.AbstractArtifactManager.publish(AbstractArtifactManager.java:107)
        at com.atlassian.bamboo.build.artifact.BuildArtifactPostProcessor.call(BuildArtifactPostProcessor.java:82)
        at com.atlassian.bamboo.build.pipeline.tasks.ExecuteBuildTask.performCustomBuildProcess(ExecuteBuildTask.java:159)
        at com.atlassian.bamboo.build.pipeline.tasks.ExecuteBuildTask.call(ExecuteBuildTask.java:80)
        at com.atlassian.bamboo.v2.build.agent.DefaultBuildAgent.build(DefaultBuildAgent.java:196)
        at com.atlassian.bamboo.v2.build.agent.BuildAgentControllerImpl$1.call(BuildAgentControllerImpl.java:124)
        at com.atlassian.bamboo.v2.build.agent.BuildAgentControllerImpl$1.call(BuildAgentControllerImpl.java:115)
        at com.atlassian.bamboo.variable.CustomVariableContextImpl.withVariableSubstitutor(CustomVariableContextImpl.java:215)
        at com.atlassian.bamboo.v2.build.agent.BuildAgentControllerImpl.waitAndPerformBuild(BuildAgentControllerImpl.java:114)
        at com.atlassian.bamboo.v2.build.agent.DefaultBuildAgent$1.run(DefaultBuildAgent.java:118)
        at com.atlassian.bamboo.utils.BambooRunnables$1.run(BambooRunnables.java:49)
        at com.atlassian.bamboo.security.ImpersonationHelper.runWith(ImpersonationHelper.java:31)
        at com.atlassian.bamboo.security.ImpersonationHelper.runWithSystemAuthority(ImpersonationHelper.java:20)
        at com.atlassian.bamboo.security.ImpersonationHelper$1.run(ImpersonationHelper.java:52)
        at java.lang.Thread.run(Thread.java:724)
Caused by: java.net.SocketException: Broken pipe
        at java.net.SocketOutputStream.socketWrite0(Native Method)
        at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109)
        at java.net.SocketOutputStream.write(SocketOutputStream.java:153)
        at org.apache.http.impl.io.AbstractSessionOutputBuffer.flushBuffer(AbstractSessionOutputBuffer.java:159)
        at org.apache.http.impl.io.AbstractSessionOutputBuffer.write(AbstractSessionOutputBuffer.java:179)
        at org.apache.http.impl.io.ChunkedOutputStream.flushCacheWithAppend(ChunkedOutputStream.java:124)
        at org.apache.http.impl.io.ChunkedOutputStream.write(ChunkedOutputStream.java:181)
        at java.util.zip.DeflaterOutputStream.deflate(DeflaterOutputStream.java:253)
        at java.util.zip.DeflaterOutputStream.write(DeflaterOutputStream.java:211)
...