Small refactoring

beans/Users.java

@@ -17,9 +17,10 @@ public class Users {
 
     @XmlElement(name="users")
     private List<User> userslist;
+
     private static Users instance;
 
-    public Users() {
+    private Users() {
         userslist = new ArrayList<User>();
     }
 
@@ -31,10 +32,12 @@ public class Users {
     }
 
     public synchronized List<User> getUserslist() {
+
         return new ArrayList<>(userslist);
+
     }
 
-    public void setUserslist(List<User> userslist) {
+    public synchronized void setUserslist(List<User> userslist) {
         this.userslist = userslist;
     }
 

services/HelloWorld.java

@@ -28,13 +28,16 @@ public class HelloWorld {
     @GET
     @Produces("application/json")
     public String helloWorld2(){
+
         return "{\"message\": \"helloWorld\"}";
+
     }
 
-    @Path("/inner")
+    @Path("inner")
     @GET
     @Produces("text/plain")
     public String innerHello(){
+
         return "Inner Hello!";
     }