diff --git a/event-queue/pom.xml b/event-queue/pom.xml
index 16ee381b3..fc857b425 100644
--- a/event-queue/pom.xml
+++ b/event-queue/pom.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
 
     The MIT License
@@ -23,12 +23,13 @@
     THE SOFTWARE.
 
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <parent>
-    <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
     <version>1.16.0-SNAPSHOT</version>
   </parent>
   <artifactId>event-queue</artifactId>
@@ -39,4 +40,4 @@
       <scope>test</scope>
     </dependency>
   </dependencies>
-</project>
+</project>
\ No newline at end of file
diff --git a/event-queue/src/main/java/com/iluwatar/event/queue/Audio.java b/event-queue/src/main/java/com/iluwatar/event/queue/Audio.java
index ecd535b49..9175eeffa 100644
--- a/event-queue/src/main/java/com/iluwatar/event/queue/Audio.java
+++ b/event-queue/src/main/java/com/iluwatar/event/queue/Audio.java
@@ -25,7 +25,6 @@ package com.iluwatar.event.queue;
 
 import java.io.File;
 import java.io.IOException;
-import java.lang.Thread.State;
 
 import javax.sound.sampled.AudioInputStream;
 import javax.sound.sampled.AudioSystem;
diff --git a/pom.xml b/pom.xml
index bca17e99a..c9b7a2faf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -122,7 +122,7 @@
         <module>factory-kit</module>
         <module>feature-toggle</module>
         <module>value-object</module>
-		    <module>module</module>
+        <module>module</module>
         <module>monad</module>
         <module>mute-idiom</module>
         <module>mutex</module>
@@ -133,7 +133,7 @@
         <module>promise</module>
         <module>page-object</module>
         <module>event-asynchronous</module>
-		<module>event-queue</module>
+        <module>event-queue</module>
         <module>queue-load-leveling</module>
         <module>object-mother</module>
         <module>converter</module>
@@ -302,23 +302,23 @@
                                     </action>
                                 </pluginExecution>
                                 <pluginExecution>
-                                	<pluginExecutionFilter>
-                                		<groupId>
-                                			com.github.markusmo3.urm
-                                		</groupId>
-                                		<artifactId>
-                                			urm-maven-plugin
-                                		</artifactId>
-                                		<versionRange>
-                                			[1.4.1,)
-                                		</versionRange>
-                                		<goals>
-                                			<goal>map</goal>
-                                		</goals>
-                                	</pluginExecutionFilter>
-                                	<action>
-                                		<ignore/>
-                                	</action>
+                                    <pluginExecutionFilter>
+                                        <groupId>
+                                            com.github.markusmo3.urm
+                                        </groupId>
+                                        <artifactId>
+                                            urm-maven-plugin
+                                        </artifactId>
+                                        <versionRange>
+                                            [1.4.1,)
+                                        </versionRange>
+                                        <goals>
+                                            <goal>map</goal>
+                                        </goals>
+                                    </pluginExecutionFilter>
+                                    <action>
+                                        <ignore/>
+                                    </action>
                                 </pluginExecution>
                             </pluginExecutions>
                         </lifecycleMappingMetadata>