Configure and Enable Java SDK 7 on WAS 8.5

You can switch the java level by using the managesdk command. The executable for the managesdk command is located in the bin directory of your application server.
For example: /opt/IBM/WebSphere/AppServer/bin

Use this command to view the available Java products:
./managesdk.sh -listAvailable

Use this command to view the available Java products with detail information:
./managesdk.sh -listAvailable -verbose

Use this command to set the command default to the version 7.0 SDK:
./managesdk.sh -setCommandDefault -sdkname 1.7_64

Use this command to set the new profile default to version 7.0 SDK:
./managesdk.sh -setNewProfileDefault -sdkname 1.7_64

If profiles already exist, use this command to enable the profiles to use the version 7.0 SDK:
./managesdk.sh -enableProfileAll -sdkname 1.7_64 -enableServers


Note:
To change federated profiles in a Network Deployment installation, the deployment manager must be running. The managesdk command updates the master configuration repository.
After the command runs, a synchronization operation must occur before the new SDK can be used for federated profiles.