sun jdk vs java-1.6.0-openjdk

Erik P. Olsen epodata at
Mon Jul 26 11:36:57 UTC 2010

On 26/07/10 12:33, Joerg Bergmann wrote:
>    Am 26.07.2010 11:41, schrieb Andrew Haley:
>> On 07/25/2010 05:43 AM, Bob Hartung wrote:
>>>      I have loaded Fedora13 without a hitch and am impressed by the
>>> improvements!
>>>      However, I am just now beginning Java programming and I am wondering
>>> if there is any substantial difference between java-1.6.0-openjdk and
>>> the sun jdk.
>> They are based on the same source code and both conform to the same
>> language specification.  For almost all purposes you won't see any
>> difference.
> I cannot confirm that. In real live, with Java apps not developed
> for OpenJava, 50% of the "large" applets as developed using Sun
> JDK fail with OpenJava. A simple example: The german tax office
> has an online tax system called "Elster". There is an applet
> for secure communication with Elster using public/private
> keys, this applet fails using OpenJava. Another example is related
> to javax.imageio, output of images to files simply does not work
> in OpenJava. Installation of Sun Java is one of the first modifications
> I do to Fedora. Unfortunately, on every update of OpenJava, OpenJava
> would become the default Java again.
> M$ has given the freedom of selecting between IE, Firefox, Opera etc.
> It would be a good act of freedom to give the fedora user the choice
> between OpenJava and SunJava. At now, half the Fedora System depends
> on OpenJava (same story as of Windows depends on IE), for that reason
> I cannot deselect OpenJava.

I have completely removed java-1.6.0-openjdk before installing Sun's java and 
have not noticed any problem with that. Do you have an example of an application 
that won't work unless openjdk is also installed?


More information about the users mailing list