Update fromJson Javadoc. (#1151)
For the string-based fromJson() method, mention that the result will be null if the given string is empty.
diff --git a/gson/src/main/java/com/google/gson/Gson.java b/gson/src/main/java/com/google/gson/Gson.java
index 2828573..fc8ba2e 100644
--- a/gson/src/main/java/com/google/gson/Gson.java
+++ b/gson/src/main/java/com/google/gson/Gson.java
@@ -765,7 +765,8 @@
* @param <T> the type of the desired object
* @param json the string from which the object is to be deserialized
* @param classOfT the class of T
- * @return an object of type T from the string. Returns {@code null} if {@code json} is {@code null}.
+ * @return an object of type T from the string. Returns {@code null} if {@code json} is {@code null}
+ * or if {@code json} is empty.
* @throws JsonSyntaxException if json is not a valid representation for an object of type
* classOfT
*/
