If the J2EE installer stops responding while installing on the WebSphere server, check if the installation was performed on a new instance of the WebSphere Application Server that is part of the WebSphere Cell. If it is, the possible cause could be that the installer uses the wsadmin script provided by WebSphere to perform configuration changes to the application server. When the installer is run on a new server instance of the WebSphere Application Server instance that is part of the WebSphere Cell, WebSphere requests the user to authorize signer certificates given by the deployment manager. The installer eventually connects to this deployment manager. To verify this, run the wsadmin script from a command line.
To work around this problem:
Kill the installer process.
Run the wsadmin script from a command line interpreter. If you are prompted to confirm the signer certificate, confirm it.
Run the J2EE Agent installer.
If you are prompted to confirm overwriting some of the files that were installed during the previous failed attempt, click.
Contact Novell® Support if the problem persists.