Infinite loop in the parser finally leading to Stack Overflow

[kmnls]

Description:

Initializing JSONObject with a string consisting of any of opening brackets ('{', '[') and ending with a slash '/' will result in stack overflow.

Minimal reproducible example:

import org.codehaus.jettison.mapped.*;
import org.codehaus.jettison.json.JSONObject;

public class Test {
    public static void main(String[] args) throws Exception 
        JSONObject obj = new JSONObject("{/");
    }
}

Log:

Exception in thread "main" java.lang.StackOverflowError
at java.base/java.lang.String.charAt(String.java:693)
at org.codehaus.jettison.json.JSONTokener.next(JSONTokener.java:124)
at org.codehaus.jettison.json.JSONTokener.nextClean(JSONTokener.java:177)
at org.codehaus.jettison.json.JSONTokener.nextValue(JSONTokener.java:326)
at org.codehaus.jettison.json.JSONObject.(JSONObject.java:218)
at org.codehaus.jettison.json.JSONTokener.newJSONObject(JSONTokener.java:424)
at org.codehaus.jettison.json.JSONTokener.nextValue(JSONTokener.java:335)
at org.codehaus.jettison.json.JSONObject.(JSONObject.java:218)
at org.codehaus.jettison.json.JSONTokener.newJSONObject(JSONTokener.java:424)
at org.codehaus.jettison.json.JSONTokener.nextValue(JSONTokener.java:335)
at org.codehaus.jettison.json.JSONObject.(JSONObject.java:218)
at org.codehaus.jettison.json.JSONTokener.newJSONObject(JSONTokener.java:424)
at org.codehaus.jettison.json.JSONTokener.nextValue(JSONTokener.java:335)
at org.codehaus.jettison.json.JSONObject.(JSONObject.java:218)
at org.codehaus.jettison.json.JSONTokener.newJSONObject(JSONTokener.java:424)
at org.codehaus.jettison.json.JSONTokener.nextValue(JSONTokener.java:335)
at org.codehaus.jettison.json.JSONObject.(JSONObject.java:218)

[coheigea]

Fixed in 1.5.1 by #48 (comment)