TestServlet.java

/*
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package org.glassfish.json.customprovider;

import javax.servlet.annotation.*;
import javax.servlet.http.*;
import javax.servlet.*;
import java.io.IOException;
import javax.json.*;
import javax.json.stream.*;
import java.io.*;

/**
 * @author Jitendra Kotamraju
 */
@WebServlet("/json")
public class TestServlet extends HttpServlet {

    public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException {
        try {
			res.setStatus(200);
			res.setContentType("application/json");
			OutputStream os = res.getOutputStream();
			JsonGenerator generator = Json.createGenerator(new OutputStreamWriter(os));
            if (!(generator instanceof TestGenerator)) {
                throw new RuntimeException("MyGenerator is not picked up");
            }
            generator.writeStartArray().writeEnd();
            generator.close();
			os.close();
        } catch(IOException ioe) {
            throw new ServletException(ioe);
        }
    }

}