HerCath commented on code in PR #4255:
URL: https://github.com/apache/hadoop/pull/4255#discussion_r918925836
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/ExitUtil.java:
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@@ -204,6 +204,20 @@ public static void resetFirstHaltException() {
FIRST_HALT_EXCEPTION.set(null);
}
+ /**
+ * Suppresses if legit and returns the first non-null of the two. Legit means
+ * <code>suppressor</code> if neither <code>null</code> nor
<code>suppressed</code>.
+ */
Review Comment:
done, also added a @return
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