Github user mxm commented on a diff in the pull request:
https://github.com/apache/flink/pull/2275#discussion_r72436220
--- Diff: flink-core/src/main/java/org/apache/flink/util/Preconditions.java
---
@@ -293,6 +293,16 @@ private static String format(@Nullable String
template, @Nullable Object... args
return builder.toString();
}
+
+ /**
+ * Returns {@code true} if the given string is null or is the empty
string.
+ * @param string a string reference to check
+ * @return {@code true} if the string is null or is the empty string
+ */
+ public static boolean isNullOrEmpty(@Nullable String string) {
--- End diff --
A better place for the utility function could be `StringUtils`.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
