JDK 116 v4a Issue Resolutions: Please READ!
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There have been a large number of reported problems with JDSK 116 v4a that
are caused by incompatible system shared libraries in one way or another.
Problems like these are really why a Linux distribution standard is
desperately needed (IMHO).
In an attempt to prevent the Jitterbug Database from overflowing with
problems that are distribution dependent and easily fixed, here are some
things to Please try before submitting a bug report:
PROBLEM: SegFaults
FIX:
The system shared libraries that are shipped with the JDK are in some way
incompatible with the shared libraries in your distribution. To fix this
problem simply remove the system shared libraries that came with the JDK so
that the system shared libraries of your own system are used.
- remove libc and libdl from $JAVA_HOME/lib/XXX/green_threads/
where XXX is your archictecture
PROBLEM: font problems with messages like:
Warning:
Name: textfield
Class: XmTextField
Character 'x' not supported in font. Discarded.
FIX:
There seems to be a problem with Motif loading and finding the
libraries that deal with Locale issues on some distributions. To
work around this issue make sure libBrokenLocale.so is found and
linked to first (a Motif issue?) by doing the following:
LD_PRELOAD=/usr/lib/libBrokenLocale.so java _name_of_class_file
If this fixes your problem, you can edit your $JAVA_HOME/bin/.java_wrapper
so that this is done automatically.
PROBLEM: SO_LINGER, MULTICAST Socket error, bad parameter
FIX:
This was my fault. I was trying to improve socket performance and
accidentally left some code in that I should have reverted.
The problem is known and a fix will appear in the next release. If you
roll your own from source, please contact me directly and I will post
a patch for you. If you don't, and this is a "show stopper!" for you,
I am sure we can make a development release available to hold you until
the next release, or you can revert back to v2 or v3.
We are working on coming up with a better solution to all of these problems.
If we don't include system shared libraries in the JDK, then we get
hundreds of reports of SEGFAULTS on startup from people whose systems are
not up to date. If we do include them, we run the risk of having system
incompatibilities like the ones we are seeing now. Our previous solution
was to ship the key system shared librtaries with the JDK, knowing that
people could easily remove them if incompatitibilities arose. We are now
working on an install script that will automatically check these libraries
and then "do the right thing".
Also, Metro Link has nicely donated updated copies of its RedHat Motif to
be used by the porting team for releases. This will hopefully clear up the
font / textfield related problems in the future.
I hope this information helps.
Thanks for your support and sorry for any inconvenience.
Kevin B. Hendricks
Blackdown Java Porting Team
[EMAIL PROTECTED]
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Kevin B. Hendricks
Associate Professor of Operations and Information Technology
School of Business, College of William & Mary, 307 Tyler Hall,
P.O.Box 8795, Williamsburg, VA 23187-8795
(757) 221-1702, [EMAIL PROTECTED]; http://business.tyler.wm.edu
