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Old 02-19-2006, 02:16 PM   #1
Registered: Feb 2005
Location: Newcastle, England
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Problems installing Java SDK 1.5.0

Hi everyone, I'm trying to install the new JDK on my machine using the command

linux:> rpm -iv jdk-1_5_0_06-linux-i586.rpm
But there obviously needs to be some sort of configuration files adjusted because everything still points to version 1.4.2.

Any ideas where to start looking?


Old 02-19-2006, 02:57 PM   #2
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Type 'which javac' to see where the javac you're using is. Sun's packages install each java version into a new directory, so chances are you just need to update your $PATH to point to the new java installation.
Old 02-19-2006, 03:30 PM   #3
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There are several ways to go:

1. Uninstall the previous (this is NOT necessary!):

2. Use "alternative --configure" to control which (of multiple JDK's) is the default:

3. Simply (as dmail suggested) set your environment to point to one or the other:

Many prefer to do this globally in /etc/profile or $HOME/.bashrc; I think there are advantages in a per-project "env.rc" file. The only "critical" one as $PATH. Other environment variables include
etc etc

'Hope that helps .. PSM

Last edited by paulsm4; 02-19-2006 at 03:32 PM.


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