Fixed checkstyle

Signed-off-by: Nils Bandener <[email protected]>

Author: nibix

src/integrationTest/java/org/opensearch/security/user/UserTest.java

@@ -10,14 +10,13 @@
  */
 package org.opensearch.security.user;
 
-import java.util.Arrays;
-
 import com.google.common.collect.ImmutableMap;
 import org.junit.Test;
-
 import org.opensearch.security.support.Base64JDKHelper;
 
-import static org.junit.Assert.*;
+import java.util.Arrays;
+
+import static org.junit.Assert.assertEquals;
 
 public class UserTest {
     @Test