[jdom-interest] JDOM parser reuse memory problem

[Rolf]

I have updated the issue with some performanc numbers for some different 
conditions.

Have a look at: https://github.com/hunterhacker/jdom/issues/52

It seems to indicate that fixing the 'back to raw JAXP for each loop' 
will only save a little time, but parser reuse saves a lot.

Need to implement both options, I think, implement SAXFactory caching as 
well as better memory management on Parser reuse.

Out of interest, I thought the default setting for parser reuse was 
'false', but it is true. XMLReaders will be reused unless you explicitly 
setReuseParser(false);

This in turn means that my comments about 'normal' process should be 
reversed, the normal case for this bug condition is that we keep a 
reference from the SAXBuilder to the Document for as long as the 
SAXBuilder is active, and not used to rebuild another document.

Thanks

Rolf