JAR Files loaded twice under Solaris.

[mm22]

We have noticed the following behavior: Dumping the memory contents
with pmap for jdk1.3.1_06 under Solaris 5.8 would return something
like this:
.....
C5D80000 3816 3816 3816 - read/shared dev:311,8863 ino:2187608
C6180000 3816 3816 3816 - read/shared dev:311,8863 ino:2187608
.....

Looking at the Inodes

find . -inum 2187608 -mount -print would return something like this./myApplication/archvies/MyArchive.jar

Obviously this means that the same jar file was loaded twice into
memory by the jvm. This seems to occur to most jar files, but not all.
There was a bug for this in jdk1.2.X, I couldn't fine one for
1.3.1_06. In our case, ~200 MB of code, this is an expensive waste of
memory. Has someone found a workaround for this?