You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@cayenne.apache.org by "Andrus Adamchik (JIRA)" <ji...@apache.org> on 2012/10/21 11:38:11 UTC
[jira] [Commented] (CAY-1749) NPE on simple nested context commit
[ https://issues.apache.org/jira/browse/CAY-1749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13480934#comment-13480934 ]
Andrus Adamchik commented on CAY-1749:
--------------------------------------
Found a description of a similar NPE https://issues.apache.org/jira/browse/JCR-1271 ... looks like a concurrency issue (parent context event arrives while child is still processing commit state?)
> NPE on simple nested context commit
> -----------------------------------
>
> Key: CAY-1749
> URL: https://issues.apache.org/jira/browse/CAY-1749
> Project: Cayenne
> Issue Type: Bug
> Components: Core Library
> Affects Versions: 3.1B2
> Reporter: Andrus Adamchik
> Assignee: Andrus Adamchik
>
> An odd problem happens when building on Jenkins. E.g. this build (Java 7, HSQLDB) :
> https://builds.apache.org/job/Cayenne-trunk/cayenneTestConnection=HSQLDB,jdk=JDK%201.7%20%28latest%29,label=Ubuntu/781/
> results in the following exception:
> -------------------------------------------------------------------------------
> Test set: org.apache.cayenne.access.NestedDataContextWriteTest
> -------------------------------------------------------------------------------
> Tests run: 11, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.151 sec <<< FAILURE!
> testAddRemove(org.apache.cayenne.access.NestedDataContextWriteTest) Time elapsed: 0.012 sec <<< ERROR!
> java.lang.NullPointerException
> at org.apache.commons.collections.map.AbstractReferenceMap$ReferenceEntry.getValue(AbstractReferenceMap.java:597)
> at org.apache.commons.collections.map.AbstractReferenceMap.get(AbstractReferenceMap.java:234)
> at org.apache.cayenne.access.ObjectStore.postprocessAfterCommit(ObjectStore.java:417)
> at org.apache.cayenne.access.DataContext.flushToParent(DataContext.java:771)
> at org.apache.cayenne.access.DataContext.commitChanges(DataContext.java:697)
> at org.apache.cayenne.access.NestedDataContextWriteTest.testAddRemove(NestedDataContextWriteTest.java:632)
> The code is as vanilla and single threaded as it gets:
> DataContext context = createDataContext();
> ObjectContext child = runtime.getContext(context);
> Artist a = child.newObject(Artist.class);
> a.setArtistName("X");
> child.commitChanges(); // this is line 632 that causes exception
> It appears that ObjectStore.objectMap somehow gets corrupted... Sure enough it is only reproducible on Jenkins, and never - locally.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira