>But except for the missing gnujaxp.jar (which I actually locally added in the 
>Jmol.jar), we also had problems with testing for the availability of JAXP... 
>which is not, but the exception thrown were not catched... 
>InstantiationException and ClassNotFoundException...


This is  deja vu all over again, but Miguel explained that removing the XML
parser was going to make  Jmol.jar smaller.    The actual distribution of 
Jmol.jar V10 is not in fact smaller than all earlier versions.  Now, adding  
gnujaxp.jar 
will make it about 230K bigger.  and it means some people will have a 
customised version
of  Jmol.jar into  which gnujaxp.jar  has been bundled.  

What is more pernicious is that on  OS X, gnujaxp.jar   appears to come from 
the system
Java somewhere, so that  <<most>> OS X users don't notice if its not declared.  
But
I have just had one OS X user report that his system behaves like Windows, ie 
gnujaxp.jar 
appears to be missing from his system somehow?   This variability worries me, 
and makes
me feel that  gnujaxp.jar   should  be included on ALL released versions of  
Jmol.jar. 

finally, if one is developing a Web page, and during this process, the  
Jmol.jar is
updated on the server, it can be  FIENDISHLY difficult to update the cached 
browser
version.  Most browsers seem to so persistently cache the .jar archive that it 
can be
very difficult to refresh it and hence persuade the browser to download a new 
version.

does anyone have any good advice on how to reliably clear out cached versions of
.jar files?  At very least,  I find I have to quit the browser and restart it, 
but each browser
seems to have a different way of achieving this.  Is there a reliable formula? 
-- 

Henry Rzepa. 
+44 (020) 7594 5774 (Voice); +44 (0870) 132 3747 (eFax); [EMAIL PROTECTED] 
(iChat)
 http://www.ch.ic.ac.uk/rzepa/ Dept. Chemistry, Imperial College London, SW7  
2AZ, UK. 

(Voracious anti-spam filter in operation for received email.
If expected reply not received, please phone/fax). 




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