diff --git a/epi_judge_java/epi/Permutations.java b/epi_judge_java/epi/Permutations.java
index 3af40ace8..3aa98d399 100644
--- a/epi_judge_java/epi/Permutations.java
+++ b/epi_judge_java/epi/Permutations.java
@@ -19,13 +19,7 @@ public static boolean comp(List<List<Integer>> expected,
     if (result == null) {
       return false;
     }
-    for (List<Integer> l : expected) {
-      Collections.sort(l);
-    }
     expected.sort(new LexicographicalListComparator<>());
-    for (List<Integer> l : result) {
-      Collections.sort(l);
-    }
     result.sort(new LexicographicalListComparator<>());
     return expected.equals(result);
   }
diff --git a/epi_judge_java_solutions/epi/Permutations.java b/epi_judge_java_solutions/epi/Permutations.java
index 46a92ee3e..ce4696eb3 100644
--- a/epi_judge_java_solutions/epi/Permutations.java
+++ b/epi_judge_java_solutions/epi/Permutations.java
@@ -41,13 +41,7 @@ public static boolean comp(List<List<Integer>> expected,
     if (result == null) {
       return false;
     }
-    for (List<Integer> l : expected) {
-      Collections.sort(l);
-    }
     expected.sort(new LexicographicalListComparator<>());
-    for (List<Integer> l : result) {
-      Collections.sort(l);
-    }
     result.sort(new LexicographicalListComparator<>());
     return expected.equals(result);
   }