Fix Checkstyele
diff --git a/src/test/java/org/apache/commons/io/filefilter/FileFilterTest.java b/src/test/java/org/apache/commons/io/filefilter/FileFilterTest.java
index 13eb583..c471fab 100644
--- a/src/test/java/org/apache/commons/io/filefilter/FileFilterTest.java
+++ b/src/test/java/org/apache/commons/io/filefilter/FileFilterTest.java
@@ -19,6 +19,7 @@
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -52,7 +53,6 @@
import org.apache.commons.io.test.TestUtils;
import org.apache.commons.lang3.SystemUtils;
import org.junit.jupiter.api.Test;
-import static org.junit.jupiter.api.Assertions.assertNull;
/**
* Tests {@link FileFilterUtils}.
