JSONParser.parse() throws ParseException in case of invalid JSON. Following example shows how to handle ParseException.
import org.json.simple.parser.JSONParser; import org.json.simple.parser.ParseException; class JsonDemo { public static void main(String[] args) { JSONParser parser = new JSONParser(); String text = "[[null, 123.45, \"a\tb c\"]}, true"; try{ Object obj = parser.parse(text); System.out.println(obj); }catch(ParseException pe) { System.out.println("position: " + pe.getPosition()); System.out.println(pe); } } }
position: 24 Unexpected token RIGHT BRACE(}) at position 24.