diff --git a/core-java-modules/core-java-concurrency-advanced-3/pom.xml b/core-java-modules/core-java-concurrency-advanced-3/pom.xml
index bbb75be033..e5f3970de7 100644
--- a/core-java-modules/core-java-concurrency-advanced-3/pom.xml
+++ b/core-java-modules/core-java-concurrency-advanced-3/pom.xml
@@ -1,110 +1,109 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <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">
+         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>
-	<artifactId>core-java-concurrency-advanced-3</artifactId>
-	<version>0.1.0-SNAPSHOT</version>
-	<name>core-java-concurrency-advanced-3</name>
-	<packaging>jar</packaging>
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-concurrency-advanced-3</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>core-java-concurrency-advanced-3</name>
+    <packaging>jar</packaging>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-java</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../../parent-java</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-java</relativePath>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.assertj</groupId>
-			<artifactId>assertj-core</artifactId>
-			<version>${assertj.version}</version>
-			<scope>test</scope>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+        
+        <dependency>
+            <groupId>com.jcabi</groupId>
+            <artifactId>jcabi-aspects</artifactId>
+            <version>0.22.6</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.aspectj</groupId>
+            <artifactId>aspectjrt</artifactId>
+            <version>1.9.5</version>
+            <scope>runtime</scope>
+        </dependency>
+        
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>28.1-jre</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.cactoos</groupId>
+            <artifactId>cactoos</artifactId>
+            <version>0.43</version>
+        </dependency>
 
-		<dependency>
-			<groupId>com.jcabi</groupId>
-			<artifactId>jcabi-aspects</artifactId>
-			<version>0.22.6</version>
-		</dependency>
+        <dependency>
+            <groupId>com.ea.async</groupId>
+            <artifactId>ea-async</artifactId>
+            <version>1.2.3</version>
+        </dependency>
+    </dependencies>
 
-		<dependency>
-			<groupId>org.aspectj</groupId>
-			<artifactId>aspectjrt</artifactId>
-			<version>1.9.5</version>
-			<scope>runtime</scope>
-		</dependency>
+    <build>
+        <finalName>core-java-concurrency-advanced-3</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>com.jcabi</groupId>
+                <artifactId>jcabi-maven-plugin</artifactId>
+                <version>0.14.1</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>ajc</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.aspectj</groupId>
+                        <artifactId>aspectjtools</artifactId>
+                        <version>1.9.1</version>
+                    </dependency>
+                    <dependency>
+                        <groupId>org.aspectj</groupId>
+                        <artifactId>aspectjweaver</artifactId>
+                        <version>1.9.1</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
+        </plugins>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
 
-		<dependency>
-			<groupId>com.google.guava</groupId>
-			<artifactId>guava</artifactId>
-			<version>28.1-jre</version>
-		</dependency>
-
-		<dependency>
-			<groupId>org.cactoos</groupId>
-			<artifactId>cactoos</artifactId>
-			<version>0.43</version>
-		</dependency>
-
-		<dependency>
-			<groupId>com.ea.async</groupId>
-			<artifactId>ea-async</artifactId>
-			<version>1.2.3</version>
-		</dependency>
-	</dependencies>
-
-	<build>
-		<finalName>core-java-concurrency-advanced-3</finalName>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<configuration>
-					<source>${maven.compiler.source}</source>
-					<target>${maven.compiler.target}</target>
-				</configuration>
-			</plugin>
-
-			<plugin>
-				<groupId>com.jcabi</groupId>
-				<artifactId>jcabi-maven-plugin</artifactId>
-				<version>0.14.1</version>
-				<executions>
-					<execution>
-						<goals>
-							<goal>ajc</goal>
-						</goals>
-					</execution>
-				</executions>
-				<dependencies>
-					<dependency>
-						<groupId>org.aspectj</groupId>
-						<artifactId>aspectjtools</artifactId>
-						<version>1.9.1</version>
-					</dependency>
-					<dependency>
-						<groupId>org.aspectj</groupId>
-						<artifactId>aspectjweaver</artifactId>
-						<version>1.9.1</version>
-					</dependency>
-				</dependencies>
-			</plugin>
-		</plugins>
-		<resources>
-			<resource>
-				<directory>src/main/resources</directory>
-				<filtering>true</filtering>
-			</resource>
-		</resources>
-	</build>
-
-	<properties>
-		<assertj.version>3.14.0</assertj.version>
-		<maven.compiler.source>1.8</maven.compiler.source>
-		<maven.compiler.target>1.8</maven.compiler.target>
-	</properties>
+    <properties>
+        <assertj.version>3.14.0</assertj.version>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
 
 </project>