[teiid-issues] [JBoss JIRA] (TEIID-2137) NPE in ExecutionContext.getCommandContext()

[Andriy Rokhmanov (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-2137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12710829#comment-12710829 ] 

Andriy Rokhmanov commented on TEIID-2137:
-----------------------------------------

Yes, it seems the occasional NPE caused by this statement in my translator:

		public void close() {
			this.executionContext = null;
		}

When I remove the assignment to null I see no more NPE. I tested with 30 parallel executions.

I think this approach was taken by me from TestWaitUntilDataNotFoundWithExecutionReuse.java test case, attached to https://issues.jboss.org/browse/TEIID-2130 . I was under impression that the executionContext reset to null in close(), dispose() and cancel() methods is needed as part of fix in TEIID-2103.

If this is expected - feel free to close this defect please.

                
> NPE in ExecutionContext.getCommandContext()
> -------------------------------------------
>
>                 Key: TEIID-2137
>                 URL: https://issues.jboss.org/browse/TEIID-2137
>             Project: Teiid
>          Issue Type: Bug
>    Affects Versions: 8.1
>         Environment: Java(TM) SE Runtime Environment (build 1.7.0_05-b05) , Windows 7, Teiid 8.1.CR1
>            Reporter: Andriy Rokhmanov
>            Assignee: Steven Hawkins
>         Attachments: server.log.txt
>
>
> I start 10 simultaneous continuous executions against my custom ResultSetExecution translator.
> This piece of code causes NPE once per several seconds:
> public void execute() throws TranslatorException {
> ...
> CommandContext ctx = executionContext.getCommandContext();
> ...
> }
> Exception dump from server.log attached.

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