尝试从命令行运行时，Maven 找不到主 class

Question

I am trying to run a Maven package from the command line, but every time I go to build it, or run it afterwards, I get:

Error: Could not find or load main class utility.Main
Caused by: java.lang.ClassNotFoundException: utility.Main

I've searched through multiple SO posts, tried changing things around in pom.xml, but nothing seems to work. It does work from an IDE, but not the CLI.

Here is the build part of my pom.xml:

<build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.1</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>        
      </plugin>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-assembly-plugin</artifactId>
        <version>3.1.1</version>
        <configuration>
          <descriptorRefs>
            <descriptorRef>jar-with-dependencies</descriptorRef>
          </descriptorRefs>
          <archive>
            <manifest>
              <mainClass>utility.Main</mainClass>
            </manifest>
          </archive>
        </configuration>
        <executions>
          <execution>
            <id>make-assembly</id>
            <phase>package</phase>
            <goals>
              <goal>single</goal>     
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

What exactly am I doing wrong?

Update with requested info:

package utility;

import data.UMLEnvironment;

public class Main {

    public static void main(String[] args) {
        run();
    }

  public static void run() {
        UMLEnvironment env = new UMLEnvironment();
        Console console = new Console(env);
        console.run();
    }

}

And I do see "Main.class" being saved in target/classes/utility. Layout is:

src
-main
--java
---utility
----Main.java
----Otherstuff.Java
---data
----MoreStuff.java
---config
----AndALittleMoreStuff.java

Edit: I figured out the fix. I was trying to run it via java -cp target/mmouse-uml-0.0.2-SNAPSHOT.jar:target/mmouse-uml-0.0.2-SNAPSHOT-jar-with-dependencies.jar utility.Main when I really just needed to run it like this: java -cp target/mmouse-uml-0.0.1-SNAPSHOT-jar-with-dependencies.jar utility.Main .

Answer 1

I figured out the fix.

I was trying to run it via java -cp target/mmouse-uml-0.0.2-SNAPSHOT.jar:target/mmouse-uml-0.0.2-SNAPSHOT-jar-with-dependencies.jar utility.Main when I really just needed to run it like this: java -cp target/mmouse-uml-0.0.1-SNAPSHOT-jar-with-dependencies.jar utility.Main .