JSON Processing

public final class Json {
    public static JsonReader createReader(InputStream in);
    public static JsonReader createReader(Reader reader);
    public static JsonWriter createWriter(OutputStream out);
    public static JsonWriter createWriter(Writer writer);
    public static JsonObjectBuilder createObjectBuilder();
    public static JsonArrayBuilder createArrayBuilder();
    public static JsonParser createParser(InputStream in);
    public static JsonParser createParser(Reader reader);
    public static JsonGenerator createGenerator(OutputStream out);
    public static JsonGenerator createGenerator(Writer writer);
}

public interface JsonReader extends Closeable {
    JsonStructure read();
    JsonObject readObject();
    JsonArray readArray();
    void close();
}

public interface JsonWriter extends Closeable {
    void writeArray(JsonArray array);
    void writeObject(JsonObject object);
    void write(JsonStructure value);
    void close();
}

public interface Jsonb extends AutoCloseable {
    <T> String toJson(T object);
    <T> String toJson(T object, Type runtimeType);
    <T> void toJson(T object, OutputStream out);
    <T> void toJson(T object, Writer writer);
    <T> T fromJson(String str, Class<T> type);
    <T> T fromJson(String str, Type runtimeType);
    <T> T fromJson(Reader reader, Class<T> type);
    <T> T fromJson(Reader reader, Type runtimeType);
    <T> T fromJson(InputStream stream, Class<T> type);
    <T> T fromJson(InputStream stream, Type runtimeType);
    void close() throws Exception;
}

public final class JsonbBuilder {
    public static JsonbBuilder create();
    public JsonbBuilder withConfig(JsonbConfig config);
    public JsonbBuilder withProvider(JsonbProvider provider);
    public Jsonb build();
}

// JSON-P
JsonObject jsonObject = Json.createObjectBuilder()
    .add("name", "John Doe")
    .add("age", 30)
    .add("active", true)
    .build();

// JSON-B
Jsonb jsonb = JsonbBuilder.create();
User user = new User("John", "john@example.com");
String json = jsonb.toJson(user);
User deserializedUser = jsonb.fromJson(json, User.class);