Sometimes a developer asks you to make a J2EE server node debug able. To do this, launch the J2EE Config Tool (usr/sap//instance/j2ee/configtool) . Then click on server instance node and in the right pane navigate to the Servers Debug tab. There you must select the Debuggable tick box as well as the Enable Debug Mode tick below it.See the screen shot below.
from http://netweaverstuff.blogspot.com/2007/11/enable-debug-mode-in-j2ee-server-node.html
