diff --git a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ByteVector.java b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ByteVector.java
index e3829141683..678ae25f29a 100644
--- a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ByteVector.java
+++ b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ByteVector.java
@@ -3060,7 +3060,8 @@ public abstract class ByteVector extends AbstractVector<Byte> {
             return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<Byte>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -3249,7 +3250,8 @@ public abstract class ByteVector extends AbstractVector<Byte> {
             return vsp.dummyVector().fromBooleanArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<Byte>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromBooleanArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -3431,7 +3433,8 @@ public abstract class ByteVector extends AbstractVector<Byte> {
             return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_IN_RANGE).maybeSwap(bo);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, ms.byteSize());
+        ((AbstractMask<Byte>)m)
+            .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 1);
         return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_OUT_OF_RANGE).maybeSwap(bo);
     }
 
@@ -3499,7 +3502,8 @@ public abstract class ByteVector extends AbstractVector<Byte> {
         } else {
             ByteSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<Byte>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoArray0(a, offset, m);
         }
@@ -3656,7 +3660,8 @@ public abstract class ByteVector extends AbstractVector<Byte> {
         } else {
             ByteSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<Byte>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoBooleanArray0(a, offset, m);
         }
@@ -3788,7 +3793,8 @@ public abstract class ByteVector extends AbstractVector<Byte> {
             }
             ByteSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.vectorByteSize(), ms.byteSize())) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, ms.byteSize());
+                ((AbstractMask<Byte>)m)
+                    .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 1);
             }
             maybeSwap(bo).intoMemorySegment0(ms, offset, m);
         }
@@ -4040,26 +4046,6 @@ public abstract class ByteVector extends AbstractVector<Byte> {
 
     // End of low-level memory operations.
 
-    private static
-    void checkMaskFromIndexSize(int offset,
-                                ByteSpecies vsp,
-                                VectorMask<Byte> m,
-                                int scale,
-                                int limit) {
-        ((AbstractMask<Byte>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
-    private static
-    void checkMaskFromIndexSize(long offset,
-                                ByteSpecies vsp,
-                                VectorMask<Byte> m,
-                                int scale,
-                                long limit) {
-        ((AbstractMask<Byte>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
     @ForceInline
     private void conditionalStoreNYI(int offset,
                                      ByteSpecies vsp,
diff --git a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/DoubleVector.java b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/DoubleVector.java
index cbb21667a15..9f1e7f9ece4 100644
--- a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/DoubleVector.java
+++ b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/DoubleVector.java
@@ -2836,7 +2836,8 @@ public abstract class DoubleVector extends AbstractVector<Double> {
             return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<Double>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -3064,7 +3065,8 @@ public abstract class DoubleVector extends AbstractVector<Double> {
             return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_IN_RANGE).maybeSwap(bo);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 8, ms.byteSize());
+        ((AbstractMask<Double>)m)
+            .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 8);
         return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_OUT_OF_RANGE).maybeSwap(bo);
     }
 
@@ -3132,7 +3134,8 @@ public abstract class DoubleVector extends AbstractVector<Double> {
         } else {
             DoubleSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<Double>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoArray0(a, offset, m);
         }
@@ -3290,7 +3293,8 @@ public abstract class DoubleVector extends AbstractVector<Double> {
             }
             DoubleSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.vectorByteSize(), ms.byteSize())) {
-                checkMaskFromIndexSize(offset, vsp, m, 8, ms.byteSize());
+                ((AbstractMask<Double>)m)
+                    .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 8);
             }
             maybeSwap(bo).intoMemorySegment0(ms, offset, m);
         }
@@ -3554,26 +3558,6 @@ public abstract class DoubleVector extends AbstractVector<Double> {
 
     // End of low-level memory operations.
 
-    private static
-    void checkMaskFromIndexSize(int offset,
-                                DoubleSpecies vsp,
-                                VectorMask<Double> m,
-                                int scale,
-                                int limit) {
-        ((AbstractMask<Double>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
-    private static
-    void checkMaskFromIndexSize(long offset,
-                                DoubleSpecies vsp,
-                                VectorMask<Double> m,
-                                int scale,
-                                long limit) {
-        ((AbstractMask<Double>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
     @ForceInline
     private void conditionalStoreNYI(int offset,
                                      DoubleSpecies vsp,
diff --git a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/FloatVector.java b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/FloatVector.java
index 78259e7698b..cef1b431bf0 100644
--- a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/FloatVector.java
+++ b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/FloatVector.java
@@ -2860,7 +2860,8 @@ public abstract class FloatVector extends AbstractVector<Float> {
             return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<Float>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -3070,7 +3071,8 @@ public abstract class FloatVector extends AbstractVector<Float> {
             return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_IN_RANGE).maybeSwap(bo);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 4, ms.byteSize());
+        ((AbstractMask<Float>)m)
+            .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 4);
         return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_OUT_OF_RANGE).maybeSwap(bo);
     }
 
@@ -3138,7 +3140,8 @@ public abstract class FloatVector extends AbstractVector<Float> {
         } else {
             FloatSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<Float>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoArray0(a, offset, m);
         }
@@ -3277,7 +3280,8 @@ public abstract class FloatVector extends AbstractVector<Float> {
             }
             FloatSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.vectorByteSize(), ms.byteSize())) {
-                checkMaskFromIndexSize(offset, vsp, m, 4, ms.byteSize());
+                ((AbstractMask<Float>)m)
+                    .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 4);
             }
             maybeSwap(bo).intoMemorySegment0(ms, offset, m);
         }
@@ -3504,26 +3508,6 @@ public abstract class FloatVector extends AbstractVector<Float> {
 
     // End of low-level memory operations.
 
-    private static
-    void checkMaskFromIndexSize(int offset,
-                                FloatSpecies vsp,
-                                VectorMask<Float> m,
-                                int scale,
-                                int limit) {
-        ((AbstractMask<Float>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
-    private static
-    void checkMaskFromIndexSize(long offset,
-                                FloatSpecies vsp,
-                                VectorMask<Float> m,
-                                int scale,
-                                long limit) {
-        ((AbstractMask<Float>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
     @ForceInline
     private void conditionalStoreNYI(int offset,
                                      FloatSpecies vsp,
diff --git a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/IntVector.java b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/IntVector.java
index d68bba1d7e2..e11381e82c5 100644
--- a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/IntVector.java
+++ b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/IntVector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -3038,7 +3038,8 @@ public abstract class IntVector extends AbstractVector<Integer> {
             return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<Integer>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -3248,7 +3249,8 @@ public abstract class IntVector extends AbstractVector<Integer> {
             return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_IN_RANGE).maybeSwap(bo);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 4, ms.byteSize());
+        ((AbstractMask<Integer>)m)
+            .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 4);
         return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_OUT_OF_RANGE).maybeSwap(bo);
     }
 
@@ -3316,7 +3318,8 @@ public abstract class IntVector extends AbstractVector<Integer> {
         } else {
             IntSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<Integer>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoArray0(a, offset, m);
         }
@@ -3455,7 +3458,8 @@ public abstract class IntVector extends AbstractVector<Integer> {
             }
             IntSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.vectorByteSize(), ms.byteSize())) {
-                checkMaskFromIndexSize(offset, vsp, m, 4, ms.byteSize());
+                ((AbstractMask<Integer>)m)
+                    .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 4);
             }
             maybeSwap(bo).intoMemorySegment0(ms, offset, m);
         }
@@ -3682,26 +3686,6 @@ public abstract class IntVector extends AbstractVector<Integer> {
 
     // End of low-level memory operations.
 
-    private static
-    void checkMaskFromIndexSize(int offset,
-                                IntSpecies vsp,
-                                VectorMask<Integer> m,
-                                int scale,
-                                int limit) {
-        ((AbstractMask<Integer>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
-    private static
-    void checkMaskFromIndexSize(long offset,
-                                IntSpecies vsp,
-                                VectorMask<Integer> m,
-                                int scale,
-                                long limit) {
-        ((AbstractMask<Integer>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
     @ForceInline
     private void conditionalStoreNYI(int offset,
                                      IntSpecies vsp,
diff --git a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LongVector.java b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LongVector.java
index 1fa1cafac4e..4d54fbf7ad3 100644
--- a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LongVector.java
+++ b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LongVector.java
@@ -2899,7 +2899,8 @@ public abstract class LongVector extends AbstractVector<Long> {
             return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<Long>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -3127,7 +3128,8 @@ public abstract class LongVector extends AbstractVector<Long> {
             return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_IN_RANGE).maybeSwap(bo);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 8, ms.byteSize());
+        ((AbstractMask<Long>)m)
+            .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 8);
         return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_OUT_OF_RANGE).maybeSwap(bo);
     }
 
@@ -3195,7 +3197,8 @@ public abstract class LongVector extends AbstractVector<Long> {
         } else {
             LongSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<Long>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoArray0(a, offset, m);
         }
@@ -3353,7 +3356,8 @@ public abstract class LongVector extends AbstractVector<Long> {
             }
             LongSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.vectorByteSize(), ms.byteSize())) {
-                checkMaskFromIndexSize(offset, vsp, m, 8, ms.byteSize());
+                ((AbstractMask<Long>)m)
+                    .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 8);
             }
             maybeSwap(bo).intoMemorySegment0(ms, offset, m);
         }
@@ -3617,26 +3621,6 @@ public abstract class LongVector extends AbstractVector<Long> {
 
     // End of low-level memory operations.
 
-    private static
-    void checkMaskFromIndexSize(int offset,
-                                LongSpecies vsp,
-                                VectorMask<Long> m,
-                                int scale,
-                                int limit) {
-        ((AbstractMask<Long>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
-    private static
-    void checkMaskFromIndexSize(long offset,
-                                LongSpecies vsp,
-                                VectorMask<Long> m,
-                                int scale,
-                                long limit) {
-        ((AbstractMask<Long>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
     @ForceInline
     private void conditionalStoreNYI(int offset,
                                      LongSpecies vsp,
diff --git a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ShortVector.java b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ShortVector.java
index 19d7fa1d95e..92ca4b1ca70 100644
--- a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ShortVector.java
+++ b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ShortVector.java
@@ -3061,7 +3061,8 @@ public abstract class ShortVector extends AbstractVector<Short> {
             return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<Short>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -3242,7 +3243,8 @@ public abstract class ShortVector extends AbstractVector<Short> {
             return vsp.dummyVector().fromCharArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<Short>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromCharArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -3430,7 +3432,8 @@ public abstract class ShortVector extends AbstractVector<Short> {
             return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_IN_RANGE).maybeSwap(bo);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 2, ms.byteSize());
+        ((AbstractMask<Short>)m)
+            .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 2);
         return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_OUT_OF_RANGE).maybeSwap(bo);
     }
 
@@ -3498,7 +3501,8 @@ public abstract class ShortVector extends AbstractVector<Short> {
         } else {
             ShortSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<Short>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoArray0(a, offset, m);
         }
@@ -3647,7 +3651,8 @@ public abstract class ShortVector extends AbstractVector<Short> {
         } else {
             ShortSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<Short>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoCharArray0(a, offset, m);
         }
@@ -3774,7 +3779,8 @@ public abstract class ShortVector extends AbstractVector<Short> {
             }
             ShortSpecies vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.vectorByteSize(), ms.byteSize())) {
-                checkMaskFromIndexSize(offset, vsp, m, 2, ms.byteSize());
+                ((AbstractMask<Short>)m)
+                    .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), 2);
             }
             maybeSwap(bo).intoMemorySegment0(ms, offset, m);
         }
@@ -4026,26 +4032,6 @@ public abstract class ShortVector extends AbstractVector<Short> {
 
     // End of low-level memory operations.
 
-    private static
-    void checkMaskFromIndexSize(int offset,
-                                ShortSpecies vsp,
-                                VectorMask<Short> m,
-                                int scale,
-                                int limit) {
-        ((AbstractMask<Short>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
-    private static
-    void checkMaskFromIndexSize(long offset,
-                                ShortSpecies vsp,
-                                VectorMask<Short> m,
-                                int scale,
-                                long limit) {
-        ((AbstractMask<Short>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
     @ForceInline
     private void conditionalStoreNYI(int offset,
                                      ShortSpecies vsp,
diff --git a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/X-Vector.java.template b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/X-Vector.java.template
index 05979330ab1..235641b57a0 100644
--- a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/X-Vector.java.template
+++ b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/X-Vector.java.template
@@ -3666,7 +3666,8 @@ public abstract class $abstractvectortype$ extends AbstractVector<$Boxtype$> {
             return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<$Boxtype$>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -3902,7 +3903,8 @@ public abstract class $abstractvectortype$ extends AbstractVector<$Boxtype$> {
             return vsp.dummyVector().fromCharArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<$Boxtype$>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromCharArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -4061,7 +4063,8 @@ public abstract class $abstractvectortype$ extends AbstractVector<$Boxtype$> {
             return vsp.dummyVector().fromBooleanArray0(a, offset, m, OFFSET_IN_RANGE);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+        ((AbstractMask<$Boxtype$>)m)
+            .checkIndexByLane(offset, a.length, vsp.iota(), 1);
         return vsp.dummyVector().fromBooleanArray0(a, offset, m, OFFSET_OUT_OF_RANGE);
     }
 
@@ -4253,7 +4256,8 @@ public abstract class $abstractvectortype$ extends AbstractVector<$Boxtype$> {
             return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_IN_RANGE).maybeSwap(bo);
         }
 
-        checkMaskFromIndexSize(offset, vsp, m, $sizeInBytes$, ms.byteSize());
+        ((AbstractMask<$Boxtype$>)m)
+            .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), $sizeInBytes$);
         return vsp.dummyVector().fromMemorySegment0(ms, offset, m, OFFSET_OUT_OF_RANGE).maybeSwap(bo);
     }
 
@@ -4321,7 +4325,8 @@ public abstract class $abstractvectortype$ extends AbstractVector<$Boxtype$> {
         } else {
             $Type$Species vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<$Boxtype$>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoArray0(a, offset, m);
         }
@@ -4541,7 +4546,8 @@ public abstract class $abstractvectortype$ extends AbstractVector<$Boxtype$> {
         } else {
             $Type$Species vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<$Boxtype$>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoCharArray0(a, offset, m);
         }
@@ -4705,7 +4711,8 @@ public abstract class $abstractvectortype$ extends AbstractVector<$Boxtype$> {
         } else {
             $Type$Species vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.length(), a.length)) {
-                checkMaskFromIndexSize(offset, vsp, m, 1, a.length);
+                ((AbstractMask<$Boxtype$>)m)
+                    .checkIndexByLane(offset, a.length, vsp.iota(), 1);
             }
             intoBooleanArray0(a, offset, m);
         }
@@ -4838,7 +4845,8 @@ public abstract class $abstractvectortype$ extends AbstractVector<$Boxtype$> {
             }
             $Type$Species vsp = vspecies();
             if (!VectorIntrinsics.indexInRange(offset, vsp.vectorByteSize(), ms.byteSize())) {
-                checkMaskFromIndexSize(offset, vsp, m, $sizeInBytes$, ms.byteSize());
+                ((AbstractMask<$Boxtype$>)m)
+                    .checkIndexByLane(offset, ms.byteSize(), vsp.iota(), $sizeInBytes$);
             }
             maybeSwap(bo).intoMemorySegment0(ms, offset, m);
         }
@@ -5263,26 +5271,6 @@ public abstract class $abstractvectortype$ extends AbstractVector<$Boxtype$> {
 
     // End of low-level memory operations.
 
-    private static
-    void checkMaskFromIndexSize(int offset,
-                                $Type$Species vsp,
-                                VectorMask<$Boxtype$> m,
-                                int scale,
-                                int limit) {
-        ((AbstractMask<$Boxtype$>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
-    private static
-    void checkMaskFromIndexSize(long offset,
-                                $Type$Species vsp,
-                                VectorMask<$Boxtype$> m,
-                                int scale,
-                                long limit) {
-        ((AbstractMask<$Boxtype$>)m)
-            .checkIndexByLane(offset, limit, vsp.iota(), scale);
-    }
-
     @ForceInline
     private void conditionalStoreNYI(int offset,
                                      $Type$Species vsp,