public boolean previousConflict() throws SQLException {
       throw new UnsupportedOperationException();
   }
Moves the cursor to the previous conflict row in this <code>SyncResolver</code> object.

@return <code>true</code> if the cursor is on a valid row; <code>false</code>
    if it is off the result set
@throws SQLException if a database access error occurs or the result set type
    is TYPE_FORWARD_ONLY
src/main/java/org/replicadb/rowset/sun/rowset/internal/SyncResolverImpl.java