Is there any non free thing in Ubuntu Kernel

Ric Moore wayward4now at gmail.com
Wed Feb 8 06:43:52 UTC 2012


On 02/07/2012 07:40 PM, Amedee Van Gasse wrote:
> On Tue, February 7, 2012 21:19, Ric Moore wrote:

>>
>> You'll need OpenJDK version 7 to get closer to full java. Ric
>
> That's an ambiguous statement, Ric. Please define "full java" in this
> context. As you may or may not know, OpenJDK 7 (the reference
> implementation) was the basis for a backwards branch to create OpenJDK 6.
> I don't know how much more "full java" you can get. Or are you talking
> about SNMP support? That's not even mandatory according to the Java
> language specification.

The java project, which is heavily graphical, we use would never run on 
OpenJDK6 and we ~had~ to run Sun's java 6. We're getting reports that it 
will run on OpenJDK7 which is more closely derived from Oracle Java 
JDK7. Plus, 6 did not handle multi-cores at all. 7 will. I've run it 
both ways, with a GUI cpu manager running both occcasions. Java 6 wrang 
the devil out of one core. With Java 7 I see 3 cores handling the load, 
out of 6. I'm a happy camper. That has been my direct experience from 
testing.

To me, "Full Java" equals running ant and having a successful build 
outcome. One works and one never did. Ergo, the then Sun Java 6 worked, 
and OpenJDK lacked what made Sun Java work. Trust me, I'm plenty lazy 
enough to rather run from what is in the repos. I do plan on giving 
OpenJDK 7 a try again, once I get my faulty power supply replacement 
back for my server. :) Ric





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