installed java, but java -version not showing new java

Question

I just installed jdk1.6.0. I have tried multiple ways to set the path variable and make java 1.6 my new running version. And nothing is working. Running centos5 virtual machine.

alternatives --config java returns the following:

  Selection    Command
-----------------------------------------------
*+ 1           /usr/lib/jvm/jre-1.6.0-openjdk/bin/java
   2           /usr/lib/jvm/jre-1.4.2-gcj/bin/java

java -version returns the following:

java version "1.4.2_19"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_19-b04)
Java HotSpot(TM) Client VM (build 1.4.2_19-b04, mixed mode)

echo $PATH returns the following:

/root/bin:/opt/j2sdk/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/testing/jdk1.6.0_23/bin:/usr/local/testing/jdk1.6.0_23/bin

1.6.0 is installed in the following location: /usr/local/testing/jdk1.6.0_23/bin

Solution 1

I figured this out. I just appended the new java path to the beginning of my path variable instead of the end and it worked.

export PATH=/usr/local/testing/jdk1.6.0_23/bin:$PATH

That worked. Now i am going to set in my script so it will do automatically.

Solution 2

Try removing /opt/j2sdk/bin and /usr/local/testing/jdk1.6.0_23/bin from your PATH.

When you ran alternatives --config, it should have changed /usr/bin/java to point to the 1.6.0 version.

If you add them to PATH and are using alternatives, you will have two places to configure things, and it will get confusing.