Seems that the test for lights passes, tried with the emulator

src/main/java/device/Hue.java

@@ -0,0 +1,54 @@
+package device;
+
+import java.util.Map;
+import manage.Rest;
+
+public class Hue {
+    //private String baseURL;// = "192.168.0.2";
+    //private String username;// = "admin";
+    private String lightsURL;// = baseURL+"/api/"+username+"/lights/";
+
+    private Map<String, ?> allLights;
+
+    public Hue () {
+        this("192.168.0.2/api/admin/lights/");
+    }
+    public Hue (String url) {
+        lightsURL = url;
+        allLights = Rest.get(lightsURL);
+    }
+
+    public void turnOn() {
+        for (String light : allLights.keySet()) {
+            String callURL = lightsURL + light + "/state";
+            String body = "{ \"on\" : true }";
+            Rest.put(callURL, body, "application/json");
+        }
+    }
+
+    public void turnOff() {
+        for (String light : allLights.keySet()) {
+            String callURL = lightsURL + light + "/state";
+            String body = "{ \"on\" : false }";
+            Rest.put(callURL, body, "application/json");
+        }
+    }
+
+    public void setBrightness(int num) {
+        for (String light : allLights.keySet()) {
+            String callURL = lightsURL + light + "/state";
+            String body = "{ \"bri\" : "+num+" }";
+            Rest.put(callURL, body, "application/json");
+        }
+    }
+
+    public void setAttribute(String attribute, String value){
+        for (String light : allLights.keySet()) {
+            String callURL = lightsURL + light + "/state";
+            String body = "{ \""+attribute+"\" : "+value+" }";
+            Rest.put(callURL, body, "application/json");
+        }
+    }
+
+
+}