Problem with J2SE SDK version 1.4.2_10 on XI -Is downgrade possible on AIX?

[Former Member]

We have run into problems after the upgrade to J2SE SDK version 1.4.2_10.

The upgrade was done because we were patching Java and in prerequisites the java SP6 (that includes J2SE SDK version 1.4.2_10) was required.

Only after we discovered that this version may cause problems.

We are on AIX 5.3.

Is it safe to uninstall SDK and install it with previous release.

Has anyone done a downgrade of Java software before?

[Former Member]

Hi Robert,

If your getting problem with security policy files in you are_10, you can download it.

With JSDK 1.42.2_10 the security policy files are not set up during the installation so we need to download the latest java cryptographic tookit and uncar/Unzip the same and copy it to the lib directory under the JAVA –HOME

we can downgrade the j2sdk.

If you still want to downgrade j2sdk, you can do it with the below procedure.

1.Make sure the system variable JAVA_HOME is defined and its value is the path to the new JDK directory.

2. Make sure the system variable PATH is defined, it contains the path to <new JAVA_HOME>\bin directory and this path is situated before any other PATH entries (in particular PATH entries for <old JDK>\bin).

3. Go to command prompt and execute the command Java -Version to know if the latest JDK is installed and the JAVA_HOME points to correctly set.

4. Open the J2EE ConfigTool, open the cluster-data subtree, then open the instance_ID<num> subtree. Please make sure you change the JDK path (Java Home) in all of the following locations:

On the General tab of the instance_ID <num> page

On the General tab of the dispatcher_ID<num> page

On the Bootstrap tab of the dispatcher_ID<num> page

For every server node below instance_ID<num> apply the changes

On the general tab of the server_ID<num>

On the Bootstrap tab of the server_ID<num>

5. Delete the le /usr/sap/<SID>/JC<num>/j2ee/cluster/instance.properties.vmprop as this will be recreated once the engine is restarted.

6.Change the JDK Path in /usr/sap/<SID>/JC<num>/SDM/program/config for SDM Server

7.Change the scripts of the location of the JDK for the Visual Admin, ConfigTool, and SDM GUI still have to be changed.

8.Restart the applications.

hope this will solve ur issue.

Cheers,

Sunil

[Former Member]

Hi Robert,

AFAIK,I dont think it shold be a problem. We were using J2SDK v.1.4.2_10, and due to some issues, we downgraded to J2SDK 1.4.2_09 ( build b05).

All the best.

cheers,

Prashanth

P.S Please mark helpful answers