[ https://jira.codehaus.org/browse/MNG-5750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexander Ashitkin updated MNG-5750: ------------------------------------ Description: We have a large project of 300+ modules which regularly fails with different kind of errors in different places. The issue is reliably reproduced with parallel build and is not happens in single threaded. The optimal concurrency level for our project ~10 threads. At this level ~%20 of builds fail. To workaround the issue we reduced concurrency to 4 in development builds and reverted production build to 1 thread. Main point of failures: # Surefire ClassNotFound. Reported and investigated in SUREFIRE-1132. Points to a problem with MavenProject#getArtifacts - empty set unexpectedly returned. # Compiler - unexpected failure because of incorrect classpath (lterally all dependencies are not on the classpath), like: {code} 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[3,30] package ... does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[4,30] package ... does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[8,25] package ... does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[9,21] package org.joda.time does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[11,37] package com.google.common.base does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[11,1] static import only from classes and interfaces 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[12,37] package com.google.common.base does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[12,1] static import only from classes and interfaces {code} # Jar - unexpected NPE. Reported with stack traces in MJAR-192. (assembly seems to be also affected) At this point the issue looks like problem with MavenProject#getArtifacts in concurrent builds. To help with the issue im happy to implement or evaluate any custom assembly to trace this down. Unfortunately i cannot submit my project - it is proprietary. Thanks in advance, Alexander was: We have a large project of 300+ modules which regularly fails with different kind of errors in different places. The issue is reliably reproduced with parallel build and is not happens in single threaded. The optimal concurrency level for our project ~10 threads. At this level ~%20 of builds fail. To workaround the issue we reduced concurrency to 4 in development builds and reverted production build to 1 thread. Main point of failures: # Surefire ClassNotFound. Reported and investigated in SUREFIRE-1132. Points to a problem with MavenProject#getArtifacts - empty set unexpectedly returned. # unexpected compilation failures because of incorrect classpath (lterally all dependencies are not on the classpath), like: {code} 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[3,30] package ... does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[4,30] package ... does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[8,25] package ... does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[9,21] package org.joda.time does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[11,37] package com.google.common.base does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[11,1] static import only from classes and interfaces 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[12,37] package com.google.common.base does not exist 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[12,1] static import only from classes and interfaces {code} # unexpected NPE in archiver plugins, eg jar, assembly. Reported with stack traces in MJAR-192 At this point the issue looks like problem with MavenProject#getArtifacts in concurrent builds. To help with the issue im happy to implement or evaluate any custom assembly to trace this down. Unfortunately i cannot submit my project - it is proprietary. Thanks in advance, Alexander > Sporadic failures in concurrent build > ------------------------------------- > > Key: MNG-5750 > URL: https://jira.codehaus.org/browse/MNG-5750 > Project: Maven > Issue Type: Bug > Components: General > Affects Versions: 3.1.1, 3.2.1, 3.2.2, 3.2.5 > Environment: SLES 3.0.80-0.7-default SMP x86_64 GNU/Linux Oracle > HotSpot JDK 7u25 > windows server 2008 x64 Oracle HotSpot JDK 7u65/8u25 > Reporter: Alexander Ashitkin > Priority: Critical > > We have a large project of 300+ modules which regularly fails with different > kind of errors in different places. The issue is reliably reproduced with > parallel build and is not happens in single threaded. The optimal concurrency > level for our project ~10 threads. At this level ~%20 of builds fail. To > workaround the issue we reduced concurrency to 4 in development builds and > reverted production build to 1 thread. > Main point of failures: > # Surefire ClassNotFound. Reported and investigated in SUREFIRE-1132. Points > to a problem with MavenProject#getArtifacts - empty set unexpectedly returned. > # Compiler - unexpected failure because of incorrect classpath (lterally all > dependencies are not on the classpath), like: {code} > 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[3,30] package ... > does not exist > 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[4,30] package ... > does not exist > 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[8,25] package ... > does not exist > 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[9,21] package > org.joda.time does not exist > 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[11,37] package > com.google.common.base does not exist > 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[11,1] static > import only from classes and interfaces > 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[12,37] package > com.google.common.base does not exist > 20:20:54 [ERROR] /D:/jenkins/work/workspace/..Request.java:[12,1] static > import only from classes and interfaces > {code} > # Jar - unexpected NPE. Reported with stack traces in MJAR-192. (assembly > seems to be also affected) > At this point the issue looks like problem with MavenProject#getArtifacts in > concurrent builds. > To help with the issue im happy to implement or evaluate any custom assembly > to trace this down. Unfortunately i cannot submit my project - it is > proprietary. > Thanks in advance, Alexander -- This message was sent by Atlassian JIRA (v6.1.6#6162)