Delete the Web server definition in a standalone application server

The uninstaller program for the Web server plug-ins for WebSphere Application Server does not delete Web server definitions. However, you can delete a Web server definition from admin console OR by using the following wsadmin commands:

$AdminTask deleteServer { -serverName webserver1 -nodeName WebserverHostName-node_node }
$AdminTask removeUnmanagedNode { -nodeName WebserverHostName-node_node }
$AdminConfig save

Ex:
$AdminTask deleteServer { -serverName webserver1 -nodeName webserver1_node}
$AdminTask removeUnmanagedNode { -nodeName webserver1_node}
$AdminConfig save

Enabling trace for WSAdmin Tool

1. Enable tracing on the wsadmin tool. To do this, edit the WC_profiledir /properties/wsadmin.properties file. You must set the com.ibm.ws.scripting.traceString property to the correct trace specification. By default this line is commented out; be sure to remove the comment character (#) when you set the desired trace specification. The wsadmin client's trace file is WC_profiledir /logs/wsadmin.traceout.
2. Restart server1
3. Try to use wsadmin tool to manually export the EAR.
4. After the exception was thrown, collect the trace WC_profiledir/logs/wsadmin.traceout.