Small optimization for issue 99

Author: jfarcand

src/main/java/com/ning/http/util/AsyncHttpProviderUtils.java

@@ -185,19 +185,24 @@ public final static String contentToString(Collection<HttpResponseBodyPart> body
     }
 
     public final static byte[] contentToByte(Collection<HttpResponseBodyPart> bodyParts) throws UnsupportedEncodingException {
-        int size = 0;
-        for (HttpResponseBodyPart body : bodyParts) {
-            size += body.getBodyPartBytes().length;
-        }
-        byte[] bytes = new byte[size];
-        int offset = 0;
-        for (HttpResponseBodyPart body : bodyParts) {
-            byte[] bodyBytes = body.getBodyPartBytes();
-            System.arraycopy(bodyBytes, 0, bytes, offset, bodyBytes.length);
-            offset += bodyBytes.length;
-        }
+        if (bodyParts.size() == 1) {
+            return bodyParts.iterator().next().getBodyPartBytes();
 
-        return bytes;
+        } else {
+            int size = 0;
+            for (HttpResponseBodyPart body : bodyParts) {
+                size += body.getBodyPartBytes().length;
+            }
+            byte[] bytes = new byte[size];
+            int offset = 0;
+            for (HttpResponseBodyPart body : bodyParts) {
+                byte[] bodyBytes = body.getBodyPartBytes();
+                System.arraycopy(bodyBytes, 0, bytes, offset, bodyBytes.length);
+                offset += bodyBytes.length;
+            }
+
+            return bytes;
+        }
     }
 
     public final static URI getRedirectUri(URI uri, String location) {