[jdom-interest] JDOM Beta 9 RC 2

Stephan Trebels stephan at ncube.de
Wed Apr 23 08:04:15 PDT 2003


My understanding is different: 

The JDK 1.4 class file format will not by default be used by javac
(1.4.1).  The default - as always - is to generate class files
compatible to the last major rev, so it's 1.3 class files.  By default
not even aserts will be recognized.

Stephan


On Wed, 2003-04-23 at 16:54, Gordon Tyler wrote:
> John L. Webber - Jentro AG wrote:
> > As far as the source code is concerned it probably doesn't matter, but 
> > anyone using the pre-built jars with a pre-1.4 VM will likely see an 
> > exception like this:
> > java.lang.UnsupportedClassVersionError: Test (Unsupported major.minor 
> > version 48.0)
> > 
> > I'm not sure if this will happen with an external library compiled under 
> > 1.4 but run pre-1.4. Does anyone have time to test that -- I have 
> > meetings this morning... ;-(
> 
> JDK 1.4 introduced some changes in the class file format, upping the 
> class version, hence the exception. Pre-1.4 JVMs will not be able to use 
> classes compiled by the 1.4 compiler at all.
> 
> Ciao,
> Gordon
-- 
        Stephan Trebels <stephan at ncube.de>   Consultant
company: nCUBE Deutschland GmbH, Hanauer Str. 56, 80992 Munich, Germany
phone: cell:+49 172 8433111  office:+49 89 1498930  fax:+49 89 14989350





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