java.net.URL.toExternalForm C# (CSharp) Method

        public virtual global::java.lang.String toExternalForm()
        {
            global::net.sf.jni4net.jni.JNIEnv @__env = this.Env;
            using(new global::net.sf.jni4net.jni.LocalFrame(@__env, 10)){
            return global::net.sf.jni4net.utils.Convertor.StrongJ2CpString(@__env, @__env.CallObjectMethodPtr(this, global::java.net.URL.j4n_toExternalForm18));
            }
        }

 public virtual string createRelativeURL(URL url, URL baseURL)
 {
   if (url == null)
   {
     string str = "content url must not be null.";
     Throwable.__\u003CsuppressFillInStackTrace\u003E();
     throw new NullPointerException(str);
   }
   else if (baseURL == null)
   {
     string str = "baseURL must not be null.";
     Throwable.__\u003CsuppressFillInStackTrace\u003E();
     throw new NullPointerException(str);
   }
   else if (this.isFileStyleProtocol(url) && this.isSameService(url, baseURL))
   {
     List list1 = this.parseName(this.getPath(url));
     List list2 = this.parseName(this.getPath(baseURL));
     string query = this.getQuery(url);
     if (!this.isPath(baseURL))
       list2.remove(list2.size() - 1);
     if (url.equals((object) baseURL))
       return (string) list1.get(list1.size() - 1);
     int num1 = this.startsWithUntil(list1, list2);
     if (num1 == 0)
     {
       return url.toExternalForm();
     }
     else
     {
       if (num1 == list1.size())
         num1 += -1;
       ArrayList arrayList = new ArrayList();
       if (list2.size() >= list1.size())
       {
         int num2 = list2.size() - num1;
         for (int index = 0; index < num2; ++index)
           arrayList.add((object) "..");
       }
       arrayList.addAll((Collection) list1.subList(num1, list1.size()));
       return this.formatName((List) arrayList, query);
     }
   }
   else
     return url.toExternalForm();
 }