Fixed Maven build error caused by release flag

.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,4 @@
+eclipse.preferences.version=1
+encoding//src/main/java=UTF-8
+encoding//src/test/java=UTF-8
+encoding/<project>=UTF-8

.settings/org.eclipse.jdt.core.prefs

@@ -4,5 +4,5 @@ org.eclipse.jdt.core.compiler.compliance=1.8
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
 org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
-org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.release=disabled
 org.eclipse.jdt.core.compiler.source=1.8

pom.xml

@@ -2,10 +2,21 @@
 	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>
+
 	<groupId>informatik-ag-ngl</groupId>
 	<artifactId>java-nio-server</artifactId>
 	<version>0.0.1-SNAPSHOT</version>
 
+	<name>java-nio-server</name>
+	<url>https://github.com/informatik-ag-ngl/java-nio-server</url>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<maven.compiler.source>1.8</maven.compiler.source>
+		<maven.compiler.target>1.8</maven.compiler.target>
+	</properties>
+
 	<dependencies>
 		<dependency>
 			<groupId>org.junit.jupiter</groupId>
@@ -16,14 +27,6 @@
 	</dependencies>
 
 	<build>
-		<plugins>
-			<plugin>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.8.0</version>
-				<configuration>
-					<release>8</release>
-				</configuration>
-			</plugin>
-		</plugins>
+		<finalName>java-nio-server</finalName>
 	</build>
 </project>