6:01 p.m.
Andriy Rokhmanov created TEIID-2137:
---------------------------------------
Summary: 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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6:01 p.m.
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https://issues.jboss.org/browse/TEIID-2137?page=com.atlassian.jira.plugin...
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Andriy Rokhmanov updated TEIID-2137:
------------------------------------
Attachment: server.log.txt
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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7:47 p.m.
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https://issues.jboss.org/browse/TEIID-2137?page=com.atlassian.jira.plugin...
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Steven Hawkins commented on TEIID-2137:
---------------------------------------
Unless there's more to your code sample the issue must rest in your code as the
executionContext.getCommandContext is a simple getter and implies that the
executionContext is null.
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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8:53 p.m.
[
https://issues.jboss.org/browse/TEIID-2137?page=com.atlassian.jira.plugin...
]
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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7:16 a.m.
[
https://issues.jboss.org/browse/TEIID-2137?page=com.atlassian.jira.plugin...
]
Steven Hawkins resolved TEIID-2137.
-----------------------------------
Resolution: Rejected
The examples were just showing that the executioncontext was logically finished when any
of those methods are called. You do not have to follow that convention.
For close, the reset method will associate another executioncontext prior to the execute
call.
If you are terminating your execution prematurely however cancel (and then dispose) may be
called concurrently with execute resulting in an NPE if you are still referencing the null
value.
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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1:14 p.m.
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https://issues.jboss.org/browse/TEIID-2137?page=com.atlassian.jira.plugin...
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Steven Hawkins closed TEIID-2137.
---------------------------------
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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4978
days inactive
4985
days old
5 comments
2 participants
participants (2)
-
Andriy Rokhmanov (JIRA) -
Steven Hawkins (JIRA)