diff --git a/hutool-core/src/test/java/cn/hutool/core/cache/CacheTest.java b/hutool-core/src/test/java/cn/hutool/core/cache/CacheTest.java
index d371e7b0e..5f7f1ee6e 100755
--- a/hutool-core/src/test/java/cn/hutool/core/cache/CacheTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/cache/CacheTest.java
@@ -61,6 +61,13 @@ public class CacheTest {
 		Assert.assertNull(value3);
 	}
 
+	@Test
+	public void lfuCacheTest2(){
+		final Cache<String, String> lfuCache = CacheUtil.newLFUCache(3);
+		final String s = lfuCache.get(null);
+		Assert.assertNull(s);
+	}
+
 	@Test
 	public void lruCacheTest(){
 		final Cache<String, String> lruCache = CacheUtil.newLRUCache(3);