diff --git a/src/main/java/elf4j/engine/NativeLogServiceProvider.java b/src/main/java/elf4j/engine/NativeLogServiceProvider.java
index 2d154ec..ed3710b 100644
--- a/src/main/java/elf4j/engine/NativeLogServiceProvider.java
+++ b/src/main/java/elf4j/engine/NativeLogServiceProvider.java
@@ -66,6 +66,7 @@ public class NativeLogServiceProvider implements LogServiceProvider, NativeLogSe
     @NonNull private final NativeLogServiceProvider.NativeLoggerServiceFactory nativeLoggerServiceFactory;
 
     /** Default constructor required by {@link java.util.ServiceLoader} */
+    @SuppressWarnings("unused")
     public NativeLogServiceProvider() {
         this(Logger.class);
     }
diff --git a/src/main/java/elf4j/engine/service/configuration/LogServiceConfiguration.java b/src/main/java/elf4j/engine/service/configuration/LogServiceConfiguration.java
index a7462a2..939f2f2 100644
--- a/src/main/java/elf4j/engine/service/configuration/LogServiceConfiguration.java
+++ b/src/main/java/elf4j/engine/service/configuration/LogServiceConfiguration.java
@@ -29,12 +29,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UncheckedIOException;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Properties;
+import java.util.*;
 import java.util.stream.Collectors;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -141,8 +136,8 @@ public Map<String, String> getChildProperties(String prefix) {
      * Gets properties group of type.
      *
      * @param type the value whose keys are each used as a parent key prefix of a child properties map
-     * @return a child properties map group whose every member is a properties map having a common parent key prefix of
-     *     the specified type
+     * @return a child properties map group of which every member is a properties map having a common parent key prefix
+     *     of the specified type
      * @see #getChildProperties(String)
      */
     public List<Map<String, String>> getPropertiesGroupOfType(String type) {
diff --git a/src/test/java/elf4j/engine/service/EventingNativeLoggerServiceTest.java b/src/test/java/elf4j/engine/service/EventingNativeLoggerServiceTest.java
index 47f06ba..645eed2 100644
--- a/src/test/java/elf4j/engine/service/EventingNativeLoggerServiceTest.java
+++ b/src/test/java/elf4j/engine/service/EventingNativeLoggerServiceTest.java
@@ -25,16 +25,10 @@
 
 package elf4j.engine.service;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertNull;
-import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.*;
 import static org.mockito.BDDMockito.given;
 import static org.mockito.BDDMockito.then;
-import static org.mockito.Mockito.any;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.*;
 
 import elf4j.Level;
 import elf4j.engine.NativeLogger;
@@ -153,7 +147,7 @@ void onlyLogWhenEnabled() {
 
             sut.log(nativeLogger, this.getClass(), null, null, null);
 
-            assertTrue(loggerLevel.compareTo(writerLevel) < 0);
+            assert loggerLevel.compareTo(writerLevel) < 0;
             then(logWriter).should(never()).write(any(LogEvent.class));
         }
     }