cid#1326733 Dm: Dubious method used

there is no point in re-decoding a Java String object, it is already
UTF-16

Change-Id: Iedc59d457422d32b306782f24cac9b6c2f6b04fe

javaunohelper/com/sun/star/lib/uno/helper/UnoUrl.java

@@ -206,8 +206,10 @@ public class UnoUrl {
     private static String decodeUTF8(String s)
         throws com.sun.star.lang.IllegalArgumentException {
 
+        if (!s.contains("%")) {
+            return s;
+        }
         try {
-            if (s.contains("%")) {
             int length = s.length();
             ByteBuffer bb = ByteBuffer.allocate(length);
             for (int i = 0; i < length; i++) {
@@ -234,12 +236,6 @@ public class UnoUrl {
             byte[] bytes = new byte[bb.position()];
             System.arraycopy(bb.array(), 0, bytes, 0, bytes.length);
             return new String(bytes, "UTF-8");
-
-            } else {
-
-                return new String(s.getBytes(), "UTF-8");
-
-            }
         } catch (UnsupportedEncodingException e) {
             throw new com.sun.star.lang.IllegalArgumentException(e,
                 "Couldn't convert parameter string to UTF-8 string");