Fixed maven build

.gitignore

@@ -5,6 +5,8 @@
 # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
 # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
 
+jars/*
+
 #.idea folder
 .idea/
 

Dockerfile

@@ -1,7 +1,8 @@
 #Build from pom with maven
-FROM maven:3-jdk-11-slim as build 
+FROM maven:3-jdk-11 as build 
 WORKDIR /build
-ADD * /build/
+ADD pom.xml /build/
+ADD src /build/src/
 RUN mvn package
 
 #Create final image
@@ -11,7 +12,7 @@ FROM adoptopenjdk:11-jre-openj9
 WORKDIR /jar
 COPY --from=build /build/jars/* ./
 RUN mv *jar-with-dependencies.jar Musicbot.jar
-RUN rm DiscordMusicbotNetwork*.jar
+RUN rm discordmusicbotnetwork*.jar
 
 #initiate parameter for run
 WORKDIR /musicbot

pom.xml

@@ -5,33 +5,27 @@
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>de.autumnal</groupId>
-    <artifactId>DiscordMusicbotNetwork</artifactId>
+    <artifactId>discordmusicbotnetwork</artifactId>
     <version>1.4.4-Beta</version>
     <build>
         <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-eclipse-plugin</artifactId>
-                <configuration>
-                    <downloadSources>true</downloadSources>
-                    <downloadJavadocs>false</downloadJavadocs>
-                </configuration>
-            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
                 <configuration>
-                    <source>7</source>
-                    <target>7</target>
+                    <source>8</source>
+                    <target>8</target>
                 </configuration>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-assembly-plugin</artifactId>
+                <version>3.1.1</version>
                 <configuration>
                     <archive>
                         <manifest>
-                            <mainClass>de/autumnal/discordmusicbotnetwork/App</mainClass>
+                            <mainClass>de.autumnal.discordmusicbotnetwork.App</mainClass>
                         </manifest>
                     </archive>
                     <descriptorRefs>
@@ -52,6 +46,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
+                <version>3.1.2</version>
                 <configuration>
                     <outputDirectory>./jars</outputDirectory>
                 </configuration>