[Gvsig_english] QUESTION gvSIG 1.9 (BN 1253) -- Is Java backward compatible?

[Benjamin Ducke]

Java updates should be backward compatible between
minor version releases. E.g. gvSIG OADE has been running
on Java 1.6.0 to 1.6.18 with no changes.
For major version changes (like 1.5 to 1.6), it's a different
story. There is no telling what degree of compatibility 
Oracle will decide to break in order to improve performance or
flexibility in the next version. But traditionally, even
major Java versions are very compatible with each other.

The fact that gvSIG 1.9 (not only OADE) runs so well on 1.5 
and 1.6 is down to the fact that the gvSIG developers took care
to go through all the code and made sure that it would compile
on both Java 1.5 and Java 1.6.

I have then tested gvSIG on Java 1.6 in depth and reported
a handful of remaining issues which were then fixed by the
core gvSIG devs. Since then, no new problems have been found.

Cheers,

Ben

----- Original Message -----
From: "Simon Cropper (Botanicus Australia Pty Ltd)" <scropper at botanicusaustralia.com.au>
To: "Users and Developers mailing list" <gvsig_internacional at listserv.gva.es>
Sent: Wednesday, May 5, 2010 6:27:43 AM GMT +01:00 Amsterdam / Berlin / Bern / Rome / Stockholm / Vienna
Subject: [Gvsig_english] QUESTION gvSIG 1.9 (BN 1253) -- Is Java backward compatible?




Hi, 

Simple question that I have asked before. 



Is Java backward compatible? 



If new version of Java is released in a year can gvSIG run on this, or is it only capable of running on the version it was developed on? 



If NO, how can the core routines of gvSIG run correctly on the latest version of Java, as has been done in the OADE Version? 


-- 


Cheers Simon 

Simon Cropper 
Botanicus Australia Pty Ltd 
PO Box 160, Sunshine, Victoria 3020. 
P: 9311 5822. M: 041 830 3437. 
mailto: scropper at botanicusaustralia.com.au 
web: www.botanicusaustralia.com.au 

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