diff --git a/src/main/java/org/apache/commons/lang3/function/FailableBiConsumer.java b/src/main/java/org/apache/commons/lang3/function/FailableBiConsumer.java
index 54da7b3ba..34dce6445 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableBiConsumer.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableBiConsumer.java
@@ -43,7 +43,6 @@ public interface FailableBiConsumer<T, U, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, U, E extends Throwable> FailableBiConsumer<T, U, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableBiFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableBiFunction.java
index caa964bc1..79593b2a5 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableBiFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableBiFunction.java
@@ -46,7 +46,6 @@ public interface FailableBiFunction<T, U, R, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, U, R, E extends Throwable> FailableBiFunction<T, U, R, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableBiPredicate.java b/src/main/java/org/apache/commons/lang3/function/FailableBiPredicate.java
index d8ad16b08..58f5cfb96 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableBiPredicate.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableBiPredicate.java
@@ -47,7 +47,6 @@ public interface FailableBiPredicate<T, U, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, U, E extends Throwable> FailableBiPredicate<T, U, E> falsePredicate() {
         return FALSE;
     }
@@ -60,7 +59,6 @@ public interface FailableBiPredicate<T, U, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, U, E extends Throwable> FailableBiPredicate<T, U, E> truePredicate() {
         return TRUE;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableConsumer.java b/src/main/java/org/apache/commons/lang3/function/FailableConsumer.java
index c70d4bffb..d14f25ab0 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableConsumer.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableConsumer.java
@@ -46,7 +46,6 @@ public interface FailableConsumer<T, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, E extends Throwable> FailableConsumer<T, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableDoubleConsumer.java b/src/main/java/org/apache/commons/lang3/function/FailableDoubleConsumer.java
index d722289ba..fe014906c 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableDoubleConsumer.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableDoubleConsumer.java
@@ -39,7 +39,6 @@ public interface FailableDoubleConsumer<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableDoubleConsumer<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableDoubleFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableDoubleFunction.java
index 098621b9c..64eaf8429 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableDoubleFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableDoubleFunction.java
@@ -40,7 +40,6 @@ public interface FailableDoubleFunction<R, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <R, E extends Throwable> FailableDoubleFunction<R, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableDoublePredicate.java b/src/main/java/org/apache/commons/lang3/function/FailableDoublePredicate.java
index 50c09d76b..3314959da 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableDoublePredicate.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableDoublePredicate.java
@@ -43,7 +43,6 @@ public interface FailableDoublePredicate<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-   @SuppressWarnings("unchecked")
    static <E extends Throwable> FailableDoublePredicate<E> falsePredicate() {
         return FALSE;
     }
@@ -54,7 +53,6 @@ public interface FailableDoublePredicate<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-   @SuppressWarnings("unchecked")
    static <E extends Throwable> FailableDoublePredicate<E> truePredicate() {
         return TRUE;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableDoubleToIntFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableDoubleToIntFunction.java
index 8e037c2de..3b5448bbb 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableDoubleToIntFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableDoubleToIntFunction.java
@@ -38,7 +38,6 @@ public interface FailableDoubleToIntFunction<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-   @SuppressWarnings("unchecked")
    static <E extends Throwable> FailableDoubleToIntFunction<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableDoubleToLongFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableDoubleToLongFunction.java
index ec386d187..621519229 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableDoubleToLongFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableDoubleToLongFunction.java
@@ -38,7 +38,6 @@ public interface FailableDoubleToLongFunction<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableDoubleToLongFunction<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableDoubleUnaryOperator.java b/src/main/java/org/apache/commons/lang3/function/FailableDoubleUnaryOperator.java
index a3db79214..65dee0daf 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableDoubleUnaryOperator.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableDoubleUnaryOperator.java
@@ -48,7 +48,6 @@ public interface FailableDoubleUnaryOperator<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableDoubleUnaryOperator<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableFunction.java
index 4da137716..2146bf1c2 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableFunction.java
@@ -54,7 +54,6 @@ public interface FailableFunction<T, R, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, R, E extends Throwable> FailableFunction<T, R, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableIntConsumer.java b/src/main/java/org/apache/commons/lang3/function/FailableIntConsumer.java
index 0b21aa019..291c6c2d4 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableIntConsumer.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableIntConsumer.java
@@ -39,7 +39,6 @@ public interface FailableIntConsumer<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableIntConsumer<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableIntFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableIntFunction.java
index 355f168d0..635193097 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableIntFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableIntFunction.java
@@ -40,7 +40,6 @@ public interface FailableIntFunction<R, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <R, E extends Throwable> FailableIntFunction<R, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableIntPredicate.java b/src/main/java/org/apache/commons/lang3/function/FailableIntPredicate.java
index 66922982a..3f128e583 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableIntPredicate.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableIntPredicate.java
@@ -43,7 +43,6 @@ public interface FailableIntPredicate<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableIntPredicate<E> falsePredicate() {
         return FALSE;
     }
@@ -54,7 +53,6 @@ public interface FailableIntPredicate<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableIntPredicate<E> truePredicate() {
         return TRUE;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableIntToDoubleFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableIntToDoubleFunction.java
index b9a41cb40..79db39b67 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableIntToDoubleFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableIntToDoubleFunction.java
@@ -38,7 +38,6 @@ public interface FailableIntToDoubleFunction<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableIntToDoubleFunction<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableIntToLongFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableIntToLongFunction.java
index 422521d3a..8f6227ed5 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableIntToLongFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableIntToLongFunction.java
@@ -38,7 +38,6 @@ public interface FailableIntToLongFunction<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableIntToLongFunction<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableIntUnaryOperator.java b/src/main/java/org/apache/commons/lang3/function/FailableIntUnaryOperator.java
index 8772a0c4f..f55995785 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableIntUnaryOperator.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableIntUnaryOperator.java
@@ -48,7 +48,6 @@ public interface FailableIntUnaryOperator<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableIntUnaryOperator<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableLongConsumer.java b/src/main/java/org/apache/commons/lang3/function/FailableLongConsumer.java
index 395bbc03b..abf1c897e 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableLongConsumer.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableLongConsumer.java
@@ -39,7 +39,6 @@ public interface FailableLongConsumer<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableLongConsumer<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableLongFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableLongFunction.java
index 5aa27a131..75ad80e18 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableLongFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableLongFunction.java
@@ -40,7 +40,6 @@ public interface FailableLongFunction<R, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
    static <R, E extends Throwable> FailableLongFunction<R, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableLongPredicate.java b/src/main/java/org/apache/commons/lang3/function/FailableLongPredicate.java
index c239a2fac..8e6d9f862 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableLongPredicate.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableLongPredicate.java
@@ -43,7 +43,6 @@ public interface FailableLongPredicate<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
    static <E extends Throwable> FailableLongPredicate<E> falsePredicate() {
         return FALSE;
     }
@@ -54,7 +53,6 @@ public interface FailableLongPredicate<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableLongPredicate<E> truePredicate() {
         return TRUE;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableLongToDoubleFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableLongToDoubleFunction.java
index c7c5c2f15..5991984a8 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableLongToDoubleFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableLongToDoubleFunction.java
@@ -38,7 +38,6 @@ public interface FailableLongToDoubleFunction<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableLongToDoubleFunction<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableLongToIntFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableLongToIntFunction.java
index 419fd657a..c4d9fda4c 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableLongToIntFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableLongToIntFunction.java
@@ -38,7 +38,6 @@ public interface FailableLongToIntFunction<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <E extends Throwable> FailableLongToIntFunction<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableLongUnaryOperator.java b/src/main/java/org/apache/commons/lang3/function/FailableLongUnaryOperator.java
index 4b7d6e080..cd6c089f0 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableLongUnaryOperator.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableLongUnaryOperator.java
@@ -48,7 +48,6 @@ public interface FailableLongUnaryOperator<E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
    static <E extends Throwable> FailableLongUnaryOperator<E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableObjDoubleConsumer.java b/src/main/java/org/apache/commons/lang3/function/FailableObjDoubleConsumer.java
index 4fe4ea974..e0114a44f 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableObjDoubleConsumer.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableObjDoubleConsumer.java
@@ -40,7 +40,6 @@ public interface FailableObjDoubleConsumer<T, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-   @SuppressWarnings("unchecked")
    static <T, E extends Throwable> FailableObjDoubleConsumer<T, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableObjIntConsumer.java b/src/main/java/org/apache/commons/lang3/function/FailableObjIntConsumer.java
index 62ee8e579..bc36483ff 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableObjIntConsumer.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableObjIntConsumer.java
@@ -40,7 +40,6 @@ public interface FailableObjIntConsumer<T, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, E extends Throwable> FailableObjIntConsumer<T, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableObjLongConsumer.java b/src/main/java/org/apache/commons/lang3/function/FailableObjLongConsumer.java
index bc1ff2ebc..472c82f62 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableObjLongConsumer.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableObjLongConsumer.java
@@ -40,7 +40,6 @@ public interface FailableObjLongConsumer<T, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, E extends Throwable> FailableObjLongConsumer<T, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailablePredicate.java b/src/main/java/org/apache/commons/lang3/function/FailablePredicate.java
index 7ba62a451..bed40bdd6 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailablePredicate.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailablePredicate.java
@@ -45,7 +45,6 @@ public interface FailablePredicate<T, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, E extends Throwable> FailablePredicate<T, E> falsePredicate() {
         return FALSE;
     }
@@ -57,7 +56,6 @@ public interface FailablePredicate<T, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, E extends Throwable> FailablePredicate<T, E> truePredicate() {
         return TRUE;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableToDoubleBiFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableToDoubleBiFunction.java
index 97a321d3d..b3282f749 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableToDoubleBiFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableToDoubleBiFunction.java
@@ -42,7 +42,6 @@ public interface FailableToDoubleBiFunction<T, U, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, U, E extends Throwable> FailableToDoubleBiFunction<T, U, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableToDoubleFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableToDoubleFunction.java
index 211aa66ae..e295fe49d 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableToDoubleFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableToDoubleFunction.java
@@ -40,7 +40,6 @@ public interface FailableToDoubleFunction<T, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, E extends Throwable> FailableToDoubleFunction<T, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableToIntBiFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableToIntBiFunction.java
index a76238921..fe5e55263 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableToIntBiFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableToIntBiFunction.java
@@ -42,7 +42,6 @@ public interface FailableToIntBiFunction<T, U, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, U, E extends Throwable> FailableToIntBiFunction<T, U, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableToIntFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableToIntFunction.java
index 8dc2f4d7c..84d7513f8 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableToIntFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableToIntFunction.java
@@ -40,7 +40,6 @@ public interface FailableToIntFunction<T, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, E extends Throwable> FailableToIntFunction<T, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableToLongBiFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableToLongBiFunction.java
index 87312d6f2..fe8f899a5 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableToLongBiFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableToLongBiFunction.java
@@ -42,7 +42,6 @@ public interface FailableToLongBiFunction<T, U, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, U, E extends Throwable> FailableToLongBiFunction<T, U, E> nop() {
         return NOP;
     }
diff --git a/src/main/java/org/apache/commons/lang3/function/FailableToLongFunction.java b/src/main/java/org/apache/commons/lang3/function/FailableToLongFunction.java
index 99bb53bc6..2d87b3c6c 100644
--- a/src/main/java/org/apache/commons/lang3/function/FailableToLongFunction.java
+++ b/src/main/java/org/apache/commons/lang3/function/FailableToLongFunction.java
@@ -40,7 +40,6 @@ public interface FailableToLongFunction<T, E extends Throwable> {
      * @param <E> The kind of thrown exception or error.
      * @return The NOP singleton.
      */
-    @SuppressWarnings("unchecked")
     static <T, E extends Throwable> FailableToLongFunction<T, E> nop() {
         return NOP;
     }