private String nullEscape ( Object pArg ) { if ( pArg == null ) { return "[null]" ; } else if ( pArg instanceof String && ( ( String ) pArg ) . length ( ) == 0 ) { return "\"\"" ; } else if ( pArg instanceof JSONAware ) { return ( ( JSONAware ) pArg ) . toJSONString ( ) ; } else { return pArg . toString ( ) ; } }
null escape used for GET requests