[jira] [Updated] (DRILL-5874) NPE in AnonWebUserConnection.cleanupSession()

["Paul Rogers (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-5874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Rogers updated DRILL-5874:
-------------------------------
    Description: 
When debugging another issue, I tried to use the Web UI to run the example query:

{code}
SELECT * FROM cp.`employee.json` LIMIT 20
{code}

The query failed with this error:

{noformat}
Query Failed: An Error Occurred
java.lang.NullPointerException
{noformat}

No stack trace was provided in the log, even at DEBUG level.

Debugging, the problem appears to be deep inside {{AnonWebUserConnection.cleanupSession()}}:

{code}
package io.netty.channel;

public class DefaultChannelPromise ...
    protected EventExecutor executor() {
        EventExecutor e = super.executor();
        if (e == null) {
            return channel().eventLoop();
        } else {
            return e;
        }
    }
{code}

In the above, {{channel()}} is null. the {{channel}} field is also null.

This may indicate that some part of the Web UI was not set up correctly. This is a recent change, as this code worked several days ago.

  was:
When debugging another issue, I tried to use the Web UI to run the example query:

The query failed with this error:

Debugging, the problem appears to be deep inside {{AnonWebUserConnection.cleanupSession()}}:

{code}
package io.netty.channel;

public class DefaultChannelPromise ...
    protected EventExecutor executor() {
        EventExecutor e = super.executor();
        if (e == null) {
            return channel().eventLoop();
        } else {
            return e;
        }
    }
{code}

In the above, {{channel()}} is null. the {{channel}} field is also null.

This may indicate that some part of the Web UI was not set up correctly. This is a recent change, as this code worked several days ago.


> NPE in AnonWebUserConnection.cleanupSession()
> ---------------------------------------------
>
>                 Key: DRILL-5874
>                 URL: https://issues.apache.org/jira/browse/DRILL-5874
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.12.0
>            Reporter: Paul Rogers
>
> When debugging another issue, I tried to use the Web UI to run the example query:
> {code}
> SELECT * FROM cp.`employee.json` LIMIT 20
> {code}
> The query failed with this error:
> {noformat}
> Query Failed: An Error Occurred
> java.lang.NullPointerException
> {noformat}
> No stack trace was provided in the log, even at DEBUG level.
> Debugging, the problem appears to be deep inside {{AnonWebUserConnection.cleanupSession()}}:
> {code}
> package io.netty.channel;
> public class DefaultChannelPromise ...
>     protected EventExecutor executor() {
>         EventExecutor e = super.executor();
>         if (e == null) {
>             return channel().eventLoop();
>         } else {
>             return e;
>         }
>     }
> {code}
> In the above, {{channel()}} is null. the {{channel}} field is also null.
> This may indicate that some part of the Web UI was not set up correctly. This is a recent change, as this code worked several days ago.



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