Add jar-building to pom-file. Fix ConsoleInterface

pom.xml

@@ -71,7 +71,39 @@ http://maven.apache.org/maven-v4_0_0.xsd">
 					</execution>
 				</executions>
 			</plugin>
-        </plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-jar-plugin</artifactId>
+				<configuration>
+					<archive>
+						<manifest>
+							<mainClass>de.dhbwstuttgart.core.ConsoleInterface</mainClass>
+						</manifest>
+					</archive>
+				</configuration>
+			</plugin>
+			<plugin>
+				<artifactId>maven-assembly-plugin</artifactId>
+				<executions>
+					<execution>
+						<phase>package</phase>
+						<goals>
+							<goal>single</goal>
+						</goals>
+					</execution>
+				</executions>
+				<configuration>
+					<archive>
+						<manifest>
+							<mainClass>de.dhbwstuttgart.core.ConsoleInterface</mainClass>
+						</manifest>
+					</archive>
+					<descriptorRefs>
+						<descriptorRef>jar-with-dependencies</descriptorRef>
+					</descriptorRefs>
+				</configuration>
+			</plugin>
+		</plugins>
 	</build>
 	<repositories>
 		<repository>

src/main/java/Main.java

@@ -0,0 +1,10 @@
+import de.dhbwstuttgart.core.ConsoleInterface;
+
+import java.io.IOException;
+
+public class Main {
+
+    public static void main(String[] args) throws IOException, ClassNotFoundException {
+        ConsoleInterface.main(args);
+    }
+}

src/main/java/de/dhbwstuttgart/core/ConsoleInterface.java

@@ -2,10 +2,7 @@ package de.dhbwstuttgart.core;
 
 import java.io.File;
 import java.io.IOException;
-import java.net.URL;
 import java.util.*;
-import java.util.stream.Collectors;
-
 public class ConsoleInterface {
 	private static final String directory = System.getProperty("user.dir");
 
@@ -14,6 +11,15 @@ public class ConsoleInterface {
 		List<File> classpath = new ArrayList<>();
         String outputPath = null;
 		Iterator<String> it = Arrays.asList(args).iterator();
+        if(args.length == 0){
+            System.out.println("No input files given. Get help with --help");
+            System.exit(1);
+        }else if(args.length == 1 && args[0].equals("--help")){
+            System.out.println("Usage: javatx [OPTION]... [FILE]...\n" +
+                    "\t-cp\tSet Classpath\n" +
+                    "\t-d\tSet destination directory");
+            System.exit(1);
+        }
 		while(it.hasNext()){
             String arg = it.next();
             if(arg.equals("-d")){