diff --git a/src/test/java/org/apache/commons/pool3/impl/TestSoftReferenceObjectPool.java b/src/test/java/org/apache/commons/pool3/impl/TestSoftReferenceObjectPool.java
index 035a0b165..0c72b58b5 100644
--- a/src/test/java/org/apache/commons/pool3/impl/TestSoftReferenceObjectPool.java
+++ b/src/test/java/org/apache/commons/pool3/impl/TestSoftReferenceObjectPool.java
@@ -56,6 +56,7 @@ protected boolean isLifo() {
         return false;
     }
 
+    @SuppressWarnings("unchecked")
     @Override
     protected <T, E extends Exception> ObjectPool<T, E> makeEmptyPool(final int cap) {
         return (ObjectPool<T, E>) new SoftReferenceObjectPool<>(new SimpleFactory());