[jdom-interest] jdom 1.1

[Jason Hunter]

Paul, can you send me the necessary files to reproduce this?  I  
suspect I only need catalogueDOM36.xml.  I'll figure it out and if  
it's a real issue make a 1.1.1 release.

-jh-

On Sep 1, 2008, at 6:22 AM, Paul Libbrecht wrote:

> Katia,
>
> what you sent me is bit too much info... and it is not compilable as  
> is. Also it will not come to the mailing-list. You need to send a URL.
>
> I have written the below test which seems indeed to confirm your  
> claim to my surprise.
> Run with your 74Mb DOM-torture, I get the file parsed in 160s with  
> jdom-1.0 while I have to break it after 10 minutes in jdom-1.1.
>
> I also had to change the max-heap-size allocated:
> - with jdom-1.0, 512Mb was not enough but 1024 was
> - with jdom-1.1, 1024 was not enough, the one I interrupted was with  
> 1500m (but then my machine started to become unresponsive).
>
> The document is what you posted, I suppose it is coming from some  
> external source, it seems to be a pretty straight SQL-like document  
> with huge child-list somewhere, something for which there are far  
> better processors then the all-flexible JDOM! (and even there,  
> there's a JDOM contrib that goes in this direction I think, giving a  
> record at a time).
>
> paul
>
> PS: my invocations
> java -Xmx1024m -classpath .:jdom\ 1.0/jdom.jar Parse  
> catalogueDOM36.xml
> java -Xmx1024m -classpath .:jdom\ 1.1/jdom.jar Parse  
> catalogueDOM36.xml
> (out-of-memory, see below, also had one with text-append)
> java -Xmx1500m -classpath .:jdom\ 1.1/jdom.jar Parse  
> catalogueDOM36.xml
>
>
> import org.jdom.input.SAXBuilder;
> import java.io.File;
> public class Parse {
>  public static void main(String[] args) throws Throwable {
>      long now = System.currentTimeMillis();
>      new SAXBuilder().build(new File(args[0]).toURL());
>      System.out.println("Have lasted : " +  
> (System.currentTimeMillis()-now));
>  }
> }
>
>
> Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
> 	at org.jdom.ContentList.ensureCapacity(ContentList.java:355)
> 	at org.jdom.ContentList.add(ContentList.java:234)
> 	at org.jdom.ContentList.add(ContentList.java:131)
> 	at java.util.AbstractList.add(AbstractList.java:91)
> 	at org.jdom.Element.addContent(Element.java:811)
>
>
> Le 01-sept.-08 à 14:34, katja.radelicki at colruyt.be a écrit :
>
>> ***********************
>> Warning: Your file, difference jdom.zip, contains more than 32  
>> files after decompression and cannot be scanned.
>> ***********************
>> in the attachement you can find all the necessary things. I have  
>> tested it again and I got the same strange result.
>>
>> Regards,
>> Katja
>>
>> Katja,
>>
>>
>> What you describe is scary and I noticed nothing of that.
>> Could you make your test-case a bit more easy to reproduce? (the  
>> styled text below is not nice to copy, the xml files are missing).
>>
>> Posting it all on the web, e.g. as a zip, would help.
>> I see that jdom doesn't have a bug tracker, if you prefer such a  
>> method, you can happily post this in our bug-tracker  
>> (jira.activemath.org, project activemath, component omdocjdom).  
>> Maybe we can even discuss a jdom project there.
>>
>> paul
>
>
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