@DefinedBy(Api.COMPILER)
    public long getColumnNumber() {
        if (sourcePosition == null) {
            sourcePosition = new SourcePosition();
        }
        return sourcePosition.getColumnNumber();
    }
@ DefinedBy ( Api . COMPILER ) public long getColumnNumber ( ) { if ( sourcePosition == null ) { sourcePosition = new SourcePosition ( ) ; } return sourcePosition . getColumnNumber ( ) ; }
Get the column number within the line of source referred to by this diagnostic.
@return  the column number within the line of source referred to by this diagnostic