[BAEL-14844] -

libraries-data/pom.xml

@@ -263,6 +263,16 @@
             <groupId>org.apache.storm</groupId>
             <artifactId>storm-core</artifactId>
             <version>${storm.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>log4j-over-slf4j</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
 
         <dependency>

libraries-data/src/test/java/com/baeldung/flink/BackupCreatorIntegrationTest.java

@@ -26,6 +26,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
+import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
 
 public class BackupCreatorIntegrationTest {
@@ -88,7 +89,7 @@ public class BackupCreatorIntegrationTest {
         SerializationSchema<Backup> serializationSchema = new BackupSerializationSchema();
         byte[] backupProcessed = serializationSchema.serialize(backup);
         
-        assertEquals(backupSerialized, backupProcessed);
+        assertArrayEquals(backupSerialized, backupProcessed);
     }
 
     private static class CollectingSink implements SinkFunction<Backup> {

libraries/src/main/java/com/baeldung/ftp/FtpClient.java

@@ -59,5 +59,6 @@ class FtpClient {
     void downloadFile(String source, String destination) throws IOException {
         FileOutputStream out = new FileOutputStream(destination);
         ftp.retrieveFile(source, out);
+        out.close();
     }
 }

libraries/src/test/java/com/baeldung/serenity/spring/AdderMethodDirtiesContextIntegrationTest.java

@@ -28,7 +28,7 @@ public class AdderMethodDirtiesContextIntegrationTest {
     @Test
     public void _1_givenNumber_whenAdd_thenSumWrong() {
         adderServiceSteps.whenAdd();
-        adderServiceSteps.sumWrong();
+        adderServiceSteps.summedUp();
     }
 
     @Rule