Problems creating JSON file with javax createObjectBuilder

Question

I am trying to teach myself how to work with JSON but I am having trouble building a JSON object in Java. I am importing javax.json and trying to create something like this:

  JsonObject model = Json.createObjectBuilder()
            .add("firstName", "Duke")
            .add("lastName", "Java")
            .add("age", 18)
            .build();

I get this error:

    Exception in thread "main" java.lang.AbstractMethodError: javax.json.spi.JsonProvider.createObjectBuilder()Ljavax/json/JsonObjectBuilder;
    at javax.json.Json.createObjectBuilder(Json.java:266)
    at com.example.jsontest.Test.main(Test.java:15)

Any ideas?

Answer 1

You're attempting to use the new javax.json API without a JSON provider. To my knowledge (and some googling) the only one at the moment is the reference implementation from glassfish.

In your pom.xml you would need both dependencies:

<dependency>
  <groupId>javax.json</groupId>
  <artifactId>javax.json-api</artifactId>
  <version>1.0</version>
</dependency>
<dependency>
  <groupId>org.glassfish</groupId>
  <artifactId>javax.json</artifactId>
  <version>1.0.4</version>
</dependency>