diff --git a/modules/lang-painless/src/main/java/org/elasticsearch/painless/Def.java b/modules/lang-painless/src/main/java/org/elasticsearch/painless/Def.java
index e5967501664..889328e58db 100644
--- a/modules/lang-painless/src/main/java/org/elasticsearch/painless/Def.java
+++ b/modules/lang-painless/src/main/java/org/elasticsearch/painless/Def.java
@@ -55,6 +55,7 @@ public final class Def {
      * (to emulate a "arraystore" bytecode using MethodHandles).
      * This should really be a method in {@link MethodHandles} class!
      */
+    @SuppressWarnings("unused") // getArrayLength() methods are are actually used, javac just does not know :)
     private static final class ArrayLengthHelper {
         private static final Lookup PRIV_LOOKUP = MethodHandles.lookup();
 
@@ -72,24 +73,14 @@ public final class Def {
 
         private static final MethodHandle OBJECT_ARRAY_MH = ARRAY_TYPE_MH_MAPPING.get(Object[].class);
 
-        // NOTE: the following are actually used, javac just does not know :)
-        @SuppressWarnings("unused")
         static int getArrayLength(final boolean[] array) { return array.length; }
-        @SuppressWarnings("unused")
         static int getArrayLength(final byte[] array)    { return array.length; }
-        @SuppressWarnings("unused")
         static int getArrayLength(final short[] array)   { return array.length; }
-        @SuppressWarnings("unused")
         static int getArrayLength(final int[] array)     { return array.length; }
-        @SuppressWarnings("unused")
         static int getArrayLength(final long[] array)    { return array.length; }
-        @SuppressWarnings("unused")
         static int getArrayLength(final char[] array)    { return array.length; }
-        @SuppressWarnings("unused")
         static int getArrayLength(final float[] array)   { return array.length; }
-        @SuppressWarnings("unused")
         static int getArrayLength(final double[] array)  { return array.length; }
-        @SuppressWarnings("unused")
         static int getArrayLength(final Object[] array)  { return array.length; }
 
         static MethodHandle arrayLengthGetter(Class<?> arrayType) {