Please follow these steps and let us know whether it works or not :
1. Stop WebSphere Node properly, check no
java process is running by ps -aef | grep java
2. Open a new shell, set DISPLAY=<ip_addr_of_local_machine>:0.0 then export DISPLAY, check by echo $DISPLAY whether it is set properly.
3. Start the admin server by startupServer.sh, check the tracefile when it is started properly.
4. Open adminconsole, on the same machine and leave it, this helps in initializing some x11 libraries on solaris8
Now check the problem functionality.