Re: [xmlvm-dev] Several questions about generated code

[Arno P. <ar...@pu...>]

thanks for the nice analysis! It seems that the exception context was 
not properly restored when exiting a switch statement. Can you please 
check if the attached patch fixes this problem?

Arno


On 9/21/11 3:12 AM, Shai wrote:
> OK, I had code that looked something like this (pseudo code):
>
> public void method(SomeClass obj) {
>      try {
>           switch(field) {
>                case 1:
>
>                    ...
>                    return;
>
>                case 2:
>
>                    ...
>                    return;
>
>                case 3:
>
>                    ...
>                    return;
>
>                case 4:
>
>                    ...
>                    return;
>
>               // no default
>
>           }
>
>      } catch(Throwable t) {
>           System.out.println("Fail message...");
>
>      }
>
> }
>
>
> I initially changed all the return methods to breaks which didn't really solve the problem.
> Then I moved the switch statement to a different private method (while keeping the break instead of return) and replaced the System.out with printStackTrace().
> Problem solved...
>
> I'm open for ideas on how to investigate this further.
>
>
>> I think the problem is in the generated code. I have a
>> curThread_w23657aaac46b1c17 variable which is indeed invalid and the reason it
>> is invalid is that the TRY that corresponds to that uniqueId wasn't executed
>> before I reached this line.
>> So I'm guessing that this is a problem with the code generator, I'm
>> trying to review my Java source code to see if there is something special there.
>> The only thing that I can think of is that I have a large switch case in that
>> code and most cases invoke return rather than breaking which is a less common
>> practice.
>> The switch is surrounded by a try/catch pair which might also be related in some
>> way...
>> I'll try making some code modifications to see if it works around the issue.
>
> ------------------------------------------------------------------------------
> All the data continuously generated in your IT infrastructure contains a
> definitive record of customers, application performance, security
> threats, fraudulent activity and more. Splunk takes this data and makes
> sense of it. Business sense. IT sense. Common sense.
> http://p.sf.net/sfu/splunk-d2dcopy1
> _______________________________________________
> Xmlvm-developers mailing list
> Xml...@li...
> https://lists.sourceforge.net/lists/listinfo/xmlvm-developers