You can reverse engineer servlet code and deployment descriptor into an OOM. The reverse engineering feature reverses the Java class as a servlet class, it reverses the servlet as a component, and associates the servlet class with this component. The reverse engineering feature also reverses the deployment descriptor and all the files inside the WAR.
You start reverse engineering servlet from
.Select one of the following Java formats from the Selection page, and select the Reverse Engineer Deployment Descriptor check box from the Options page:
For more information on the Java formats, see Reverse Engineering Java Code.