public class Entity implements Serializable {

    @SerializedName("body")
    @Expose
    private BodyObject body;

{
"body": []
}

java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 443 path $.body

{
  "body":  {
    "und": [
        {
        "value": "Test ....",
        "summary": "",
        "format": "filtered_html",
        "safe_value": "<p>Test ....</p>n",
        "safe_summary": ""
        }
    ]
  }
}

Gson gson = new GsonBuilder()
                .setLenient()
                .create();