[jboss-jira] [JBoss JIRA] (WFLY-7201) Statement.cancel() is not invoked until the statement is completed

[Lin Gao (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-7201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lin Gao moved JBEAP-6173 to WFLY-7201:
--------------------------------------

              Project: WildFly  (was: JBoss Enterprise Application Platform)
                  Key: WFLY-7201  (was: JBEAP-6173)
             Workflow: GIT Pull Request workflow   (was: CDW with loose statuses v1)
          Component/s: JCA
                           (was: JCA)
    Affects Version/s:     (was: 7.0.0.GA)


> Statement.cancel() is not invoked until the statement is completed
> ------------------------------------------------------------------
>
>                 Key: WFLY-7201
>                 URL: https://issues.jboss.org/browse/WFLY-7201
>             Project: WildFly
>          Issue Type: Bug
>          Components: JCA
>            Reporter: Lin Gao
>            Assignee: Lin Gao
>            Priority: Critical
>
> Hi,
> in our application we are using the {{Statement.cancel()}} method to stop long-running queries; in Wildfly 9.0.2 this is not working because the {{cancel()}} method is synchronized using a lock which is not released until the query is executed. In {{WrappedStatement}}:
> {code:java}
> public void cancel() throws SQLException
>     {
>       if (doLocking)
>           lock();
>        try
>        {
>         /* ... */
> {code}
> It seems this behaviour has changed from version 1.2.5.Final of ironjacamar-jdbc; in version 1.2.4.Final {{WrappedStatement.cancel}} doesn't try to obtain the lock. 
> Probably I'm missing something, but to me it's strange that in order to cancel a statement you have to wait for its completion.
> Thank you,
> lorenzo



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