diff --git a/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java b/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java
index 2b1ce76a0d..592228148e 100644
--- a/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java
+++ b/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java
@@ -39,6 +39,7 @@ package org.jooq.codegen;
 
 
 import static java.util.Arrays.asList;
+import static java.util.Collections.nCopies;
 import static java.util.function.Function.identity;
 import static java.util.stream.Collectors.counting;
 import static java.util.stream.Collectors.groupingBy;
@@ -82,6 +83,7 @@ import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.IdentityHashMap;
+import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
 import java.util.List;
@@ -1395,6 +1397,17 @@ public class JavaGenerator extends AbstractGenerator {
 
 
 
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