public Prop setProp() {
        Element prop = setChild(root, "prop", childNames, true); //$NON-NLS-1$
        try {
            return new Prop(prop);
        } catch (MalformedElementException e) {
            Assert.isTrue(false, Policy.bind("assert.internalError")); //$NON-NLS-1$
            return null; // Never reached.
        }
    }
public Prop setProp() {
        Element prop = setChild(root, "prop", childNames, true); 
        try {
            return new Prop(prop);
        } catch (MalformedElementException e) {
            Assert.isTrue(false, Policy.bind("assert.internalError")); 
            return null; 
        }
    }
public Prop setProp ( ) { Element prop = setChild ( root , "prop" , childNames , true ) ; //$NON-NLS-1$ try { return new Prop ( prop ) ; } catch ( MalformedElementException e ) { Assert . isTrue ( false , Policy . bind ( "assert.internalError" ) ) ; //$NON-NLS-1$ return null ; // Never reached. } }
Creates and sets a new prop on this propstat and returns an editor on
it.

@return an editor on a new prop element
Creates and sets a new prop on this propstat and returns an editor on it .