When installing a 1.4.2_04b1 JRE rpm onto mercury b12c, the default JRE (1.4.2_02) will still be used by the system.

java -version will return a reference to 1.4.2_02.

Steps to reproduce:

1) Install 1.4.2_04 JRE rpm from /net/koori.sfbay/p/v11/jdk/1.4.2_04/ea/b01 on a mercury b12c machine
2) This will create a j2re1.4.2_04 directory within /usr/java. /use/java should now contain a j2re1.4.2_02 directory, a j2re1.4.2_04 directory and a j2redefault file
3) Run a "java -version" command
4) A reference from 1.4.2_02 will be returned

1.4.2_04 does not overwrite 1.4.2_02, but the system is not updated so that the newer JRE is used. The problem is that in /usr/java, the j2redefault file is not updated to point to 1.4.2_04, the link still points to 1.4.2_02. This needs to be fixed so that j2redefault is updated when a newer rpm is installed.

This also occurs when a JDK (1.4.2_04) containing a more recent JRE is installed as well

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