On 6/26/2013 5:39 PM, John Wolfe wrote:
Thanks for the response and the reminder that they were dropped from
the spec.
They were never in the spec. They were always documented separately
under a heading
something like "Other classes bundled with the JDK".
I did the ports of the Sun J2SE 1.4.1 and 1.5.0 for UnixWare and
OpenServer in the past. The jfc/Java2D demo was always a good
exercise for graphics and thread control. While the Java2D demo is
not in openJDK6, I grabbed a Java2Demo.jar file from the Oracle JDK6
and it ran on the OpenJDK6
Back in Summer 2006 the JDK 7 version of the demo was revised to use
Image I/O.
openjdk version "1.6.0_32"
OpenJDK Runtime Environment (build 1.6.0_32-b27)
OpenJDK Client VM (build 20.0-b12, mixed mode)
I have checked the OpenJDK6 source and the codec classes are there.
I don't know what exactly you checked but they are *not* in the openjdk
6 source.
Here's the authoritative source repo :
http://hg.openjdk.java.net/jdk6/jdk6/jdk/file/d3912e74ec28/src/share/classes/com/sun/
.. .no image subdir listed there. Maybe icedtea has its own
implementation of these.
-phil.
The missing class(es) showed up when attempting to run the
Java2Demo.jar with the OpenJDK 7u6.
-- John
On 6/26/2013 7:09 PM, Phil Race wrote:
I do not know in which JDK 6 it was you saw these files but I doubt
it was an OpenJDK.
These files are closed source, so could not be in OpenJDK and in any
case
are not part of the Java SE spec.
If you need these classes you will need to use an Oracle JDK
download, however
their use has been discouraged since Image I/O was added in JDK 1.4
over 10 years ago.
-phil.
On 6/26/2013 3:05 PM, John Wolfe wrote:
I was evaluating the OpenJDK 7 on a FreeBSD 9.1 system and was
surprised to discover that all the JPEG encoded/decode classes in:
com/sun/image/codec/jpeg
sun/awt/image/codec
are absent from the rt.jar. These missing 12 classes are part of
the OpenJDK 6 source release.
What is the reasoning for their absence? This seems to break
forward compatibility?
-- John Wolfe Xinuos, Inc.
