drools-eclipse/org.guvnor.eclipse.webdav/src/client/org/eclipse/webdav/client/AbstractResourceHandle.java
public void versionControl() throws DAVException {
        IResponse response = null;
        try {
            response = davClient.versionControl(locator, newContext(), null);
            examineResponse(response);
        } catch (IOException e) {
            throw new SystemException(e);
        } finally {
            closeResponse(response);
        }
    }
public void versionControl() throws DAVException {
        IResponse response = null;
        try {
            response = davClient.versionControl(locator, newContext(), null);
            examineResponse(response);
        } catch (IOException e) {
            throw new SystemException(e);
        } finally {
            closeResponse(response);
        }
    }
Bring the receiver under version control.  This means that
the receiver is replaced by a version-controlled resource.
Note that the client may send version control to a resource
that is already under version control with no adverse effects.

@throws DAVException if a problem occurs bringing the
resource under version control.