aokolnychyi commented on code in PR #9251:
URL: https://github.com/apache/iceberg/pull/9251#discussion_r1425370701


##########
core/src/main/java/org/apache/iceberg/util/ArrayUtil.java:
##########
@@ -320,4 +320,29 @@ public static boolean isStrictlyAscending(long[] array) {
 
     return true;
   }
+
+  @SuppressWarnings("unchecked")
+  public static <T> T[] concat(Class<T> type, T[]... arrays) {

Review Comment:
   I should probably add Javadoc on handling null arrays here.



##########
core/src/main/java/org/apache/iceberg/util/ArrayUtil.java:
##########
@@ -320,4 +320,29 @@ public static boolean isStrictlyAscending(long[] array) {
 
     return true;
   }
+
+  @SuppressWarnings("unchecked")
+  public static <T> T[] concat(Class<T> type, T[]... arrays) {

Review Comment:
   We are trying to avoid an explicit dependency on commons. Guava has a method 
to merge two but it does not support an array of arrays .



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