Bug with JAX-RS annotation processing

[faeem.ali]

Hey All ...

I suspect I've found a bug in Jboss AS 7.1.1 Final regarding JAX annotation processing for JSON. I've included a tiny project to this post that can be imported into eclipse (Juno) that shows the issue. Basically, JAX-RS seems to ignore @XmlElement annotations when the @Produces(MediaType.APPLICATION_JSON) is used. Please see the code below as an example:

<code>

@Path("/")

public class Test {

  @GET

  @Path("/test")

  @Produces(MediaType.APPLICATION_JSON) //this doesn't read the @XmlElement annotation

  //@Produces(MediaType.APPLICATION_XML) //this works

  public Msg getMsg() {

  return new Msg();

  }

}

</code>

<code>

@XmlRootElement

public class Msg implements Serializable {

  private static final long serialVersionUID = 1L;

  private String content = "Hello World";

  public Msg() {

  }

  @XmlElement(name = "blah")

  public String getContent() {

  return content;

  }

  public void setContent(String content) {

  this.content = content;

  }

}

</code>

Output:

When using MediaType.APPLICATION_JSON:

{"content":"Hello World"}

When using MediaType.APPLICATION_XML

<msg>

<blah>Hello World</blah>

</msg>

As the output shows, the @XmlElement annotation is not being processed, or not being processed correctly when JSON output is requested.

Also, if no @XmlElement is used, variable names are still mapped to XML/JSON provided the getters/setters exist. This may be a misunderstanding on my part, but I thought only variables explicitly marked with @XmlElement will be mapped to XML/JSON. This is not shown in the example above.

I'm using JBoss AS 7.1.1 in standalone mode. The only changes I've made to the configuration are adding a security domain and a database adaptor. The default RESTEasy configuration has not been modified in any way.

Please either point out my mistake or confirm this as a bug. If it's the latter, I'll post a bug report.

Faeem