On 2013-05-06, at 7:54 AM, Jesse Tayler wrote:

> 
> well, don't screw pooches, that's just gross.
> 
> if your app hangs - that's good - you should get a backtrace from the hung 
> instance.
> 
> in my experience, this basically always ends up pointing to an EC that was 
> unexpectedly locked - of course, that's just me…sigh.
> 
> I'd throw down a slice of code back to you for how to get the backtrace, but 
> of course, I can't recall exactly how.
> 
> if a search on the wiki pages doesn't work, then you can always just politely 
> ask Chuck directly, since he is the source of all such knowledge anyway.

LOL

sudo jstack -F <process id>



> 
> 
> 
> 
> On May 6, 2013, at 10:21 AM, Theodore Petrosky <[email protected]> wrote:
> 
>> I am lost. if I remove the subreport everything is happy.
>> 
>> try number 1.
>> since what I need is to sort this array by date, I thought I would get my EO 
>> to return what I wanted. So I created in my projectSteps.java 
>> 
>> public JRBeanCollectionDataSource theSteps() {
>>   return new JRBeanCollectionDataSource( 
>> ERXArrayUtilities.sortedArraySortedWithKey(this.projectSteps(), "dueBy") );
>> }
>> 
>> Then I used the Field 'theSteps' as a datasource and it worked fine. ONE TIME
>> 
>> try number 2
>> So i assume i was screwing the pooch and changed to passing the normal field 
>> to iReport and 'fixing' the datasource there. so I used projectSteps as the 
>> field and Connection type is datasourse DataSource expression was:  
>> 
>> new 
>> net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($F{projectSteps})
>> 
>> Which worked fine again (without sorting on the date).  ONE TIME.
>> 
>> If I run the report again, my app hangs. No response, no errors, it just 
>> stops.
>> 
>> I am using ERJasperReports as the basis and I see that it sets up a new 
>> EditingContext each time it is run. So I do not believe that I am hosing the 
>> EC. But what do I know?
>> 
>> 
>> --- On Mon, 5/6/13, Jesse Tayler <[email protected]> wrote:
>> 
>>> From: Jesse Tayler <[email protected]>
>>> Subject: Re: sub report (jasper) problem?
>>> To: "Theodore Petrosky" <[email protected]>
>>> Cc: "WebObjects Development" <[email protected]>
>>> Date: Monday, May 6, 2013, 9:54 AM
>>> 
>>> are you certain this is not your app handling here?
>>> 
>>> I mean, it sure sounds like you're either hanging an EC or
>>> otherwise killing your instance?
>>> 
>>> 
>>> 
>>> 
>>> On May 6, 2013, at 9:44 AM, Theodore Petrosky <[email protected]>
>>> wrote:
>>> 
>>>> someone must have seen this. this is D2W btw!!
>>>> I have a to-many relationship 
>>>> Project ==> projectSteps
>>>> 
>>>> I am trying to print a jasper report where each row is
>>> a Project and there is a sub report on the same line with
>>> the 'steps'. If I have the subReport in the printed report,
>>> the report prints beautifully. But only one time. If I try
>>> to rerun the report the app hangs. no errors in the console,
>>> it just stops and the browser window updates to "No instance
>>> available". 
>>>> 
>>>> Is there someone doing JasperReport with Subreports
>>> that has an idea.
>>>> 
>>>> I thought maybe there was a simple leak that was
>>> hurting me so I tried running the report, logging out,
>>> logging in (to create a new session). but it dies.
>>>> 
>>>> I think I need real help in debugging this one.
>>>> 
>>>> Ted 
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>> 
> 
> 
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