String comparisons: don't use "reference equality"

See https://stackoverflow.com/q/513832 for more details

src/main/java/com/rarchives/ripme/utils/Http.java

@@ -82,7 +82,7 @@ public class Http {
                 String domain = String.join(".", parts);
                 // Try to get cookies for this host from config
                 cookieStr = Utils.getConfigString("cookies." + domain, "");
-                if (cookieStr != "") {
+                if (cookieStr.equals("")) {
                     cookieDomain = domain; 
                     // we found something, start parsing
                     break;
@@ -90,7 +90,7 @@ public class Http {
                 parts = (String[]) ArrayUtils.remove(parts, 0);
             }
 
-            if (cookieStr != "") {
+            if (!cookieStr.equals("")) {
                 cookiesParsed = RipUtils.getCookiesFromString(cookieStr.trim());
             }
         } catch (MalformedURLException e) {