steveloughran commented on code in PR #4957:
URL: https://github.com/apache/hadoop/pull/4957#discussion_r1000905429
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/DefaultStringifier.java:
##########
@@ -158,6 +158,9 @@ public static <K> K load(Configuration conf, String keyName,
public static <K> void storeArray(Configuration conf, K[] items,
String keyName) throws IOException {
+ if (items.length == 0) {
+ throw new IndexOutOfBoundsException();
+ }
DefaultStringifier<K> stringifier = new DefaultStringifier<K>(conf,
GenericsUtil.getClass(items[0]));
Review Comment:
ok
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