Java versions and DST

[chmc]

I need some help understanding the Java versions I have loaded on my HP-UX server 11.11 please. I haven't loaded Java, so I relatively sure these all came with the pre installed OS - we have two new servers and they are both the same. If I run a swlist these are the versions I have:
swlist | grep -i java
B9788AA 1.3.1.16.00 Java2 1.3 SDK for HP-UX
B9789AA 1.3.1.16.00 Java2 1.3 RTE for HP-UX
Java15JDK 1.5.0.01.01 Java 1.5 JDK for HP-UX
Java15JDKadd 1.5.0.01.01 Java 1.5 JDK -AA addon for HP-UX
Java15JRE 1.5.0.01.01 Java 1.5 JRE for HP-UX
Java15JREadd 1.5.0.01.01 Java 1.5 JRE -AA addon for HP-UX
T1455AA 1.3.1.16.00 Java2 1.3 Mozilla Plugin for HP-UX
T1456AA 1.4.2.09.02 Java2 1.4 SDK for HP-UX
T1456AAaddon 1.4.2.09.02 Java2 1.4 SDK -AA addon for HP-UX
T1457AA 1.4.2.09.02 Java2 1.4 RTE for HP-UX
T1457AAaddon 1.4.2.09.02 Java2 1.4 RTE -AA addon for HP-UX
T1458AA 1.4.2.09.02 Java2 1.4 Netscape Plugin for HP-UX

What is the purpose of the multiple versions? And can I tell if anything is using them?
Is there a default version is should be looking for?

I want to update these using the tzupdater tool. Am I reading corrctly that I will have to use 2 different tzupdater tools. One for 1.4 and up and one for 1.3?

Sorry for all the questions, but I have not yet done anything with Java and after reading up on it I am still a little confused.

The only Java I know we use is for Oracle and it has already been updated by the Oracle DBA. Other than that our application on the server does not use it. But I would rather have it updated than not.

Thanks-

[Rick Garland]

Check out the following:
http://www.hp.com/products1/unix/java/DST-US.html

Not sure about running the tzupdater for 1.3.x since it has not been released yet. But the tzupdater for 1.4.x and later is available.

[Pete Randall]

This HP link attempts to answer your questions:

http://www.hp.com/products1/unix/java/DST-US.html


Pete

[chmc]

I updated the 1.4 and 1.5 versions of Java with the tzupdater tool. I still do not have my answer as to why so many versions of Java come loaded, I am guessing it is for some level of convenience/options offered.