How can I solve "org.json.simple.JSONObject cannot be resolved"?

Question

When I try to open my jsp through Tomcat, I receive the following messages: The type org.json.simple.JSONObject cannot be resolved. It is indirectly referenced from required .class files. The method getJSONObject() from the type Ejercicio refers to the missing type JSONObject. I have a java class that goes like this: ``` package E; import org.json.simple.*; import javax.json.*; import org.json.*; public class Ejercicio { public int a; public String b; public Ejercicio (int a, String b) { this.a=a; this.b=b; } public JSONObject getJSONObject() { JSONObject obj = new JSONObject(); obj.put("a", a); obj.put("b", b); return obj; } } ``` My jsp goes as follows: ``` <%@page import="java.io.*" %> <%@page import="java.util.*"%> <%@page import="E.Ejercicio"%> <%@page import="javax.json.*"%> <%@page import="org.json.simple.*"%> <%@page import="org.json.*"%> <%@page import="net.sf.json.*" %> <% ArrayList miArray = new ArrayList(); miArray.add(new Ejercicio (1,"Hola")); miArr…

Accepted Answer

Firstly, you don't need the `json-simple.jar` in your project. Therefore remove the `import org.json.simple.*`

Secondly, the best practice is to import only the required classes from your jar.Therefore you can replace `import org.json.*;` by

```
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONString;
```

How can I solve "org.json.simple.JSONObject cannot be resolved"?

Solution

Problem