Remove StringUtils#join in favor of String#join (Java 8)

src/main/java/fr/xephi/authme/util/StringUtils.java

@@ -5,7 +5,6 @@ import net.ricecode.similarity.StringSimilarityService;
 import net.ricecode.similarity.StringSimilarityServiceImpl;
 
 import java.io.File;
-import java.util.Arrays;
 
 /**
  * Utility class for String operations.
@@ -69,44 +68,6 @@ public final class StringUtils {
         return str == null || str.trim().isEmpty();
     }
 
-    /**
-     * Join a list of elements into a single string with the specified delimiter.
-     *
-     * @param delimiter The delimiter to use
-     * @param elements  The elements to join
-     *
-     * @return A new String that is composed of the elements separated by the delimiter
-     */
-    public static String join(String delimiter, Iterable<String> elements) {
-        if (delimiter == null) {
-            delimiter = "";
-        }
-        StringBuilder sb = new StringBuilder();
-        for (String element : elements) {
-            if (!isEmpty(element)) {
-                // Add the separator if it isn't the first element
-                if (sb.length() > 0) {
-                    sb.append(delimiter);
-                }
-                sb.append(element);
-            }
-        }
-
-        return sb.toString();
-    }
-
-    /**
-     * Join a list of elements into a single string with the specified delimiter.
-     *
-     * @param delimiter The delimiter to use
-     * @param elements  The elements to join
-     *
-     * @return A new String that is composed of the elements separated by the delimiter
-     */
-    public static String join(String delimiter, String... elements) {
-        return join(delimiter, Arrays.asList(elements));
-    }
-
     /**
      * Format the information from a Throwable as string, retaining the type and its message.
      *
@@ -126,7 +87,7 @@ public final class StringUtils {
      * @return The created path
      */
     public static String makePath(String... elements) {
-        return join(File.separator, elements);
+        return String.join(File.separator, elements);
     }
 
 }