无法编译命令 - 包不存在

Question

我创建了非常简单的崩溃命令

@Usage("Echo")
public class echo extends BaseCommand {

    @Command
    @Usage("Echo")
    public String main() throws IOException, InterruptedException {
        InvocationContextImpl ctx = (InvocationContextImpl) context;
        return ctx.readLine("Msg: ", true);
    }
}

它工作正常。但是当我添加非常简单的pojo类

时

package sth;

public class Echo {

    private String echo;

    public String getEcho() {
        return echo;
    }

    public void setEcho(String echo) {
        this.echo = echo;
    }
}

我的命令：

    InvocationContextImpl ctx = (InvocationContextImpl) context;
    String msg = ctx.readLine("Msg: ", true);

    Echo echo = new Echo();
    echo.setEcho(msg);

    return echo.getEcho();

仅当我从Idea运行时才有效。当我编译并运行时

    mvn clean install
    java -jar target/testproject-0.0.1-SNAPSHOT.jar

这给了我一个错误：

    org.crsh.shell.impl.command.spi.CommandException: Could not compile command
at 
    ...
    Caused by: org.crsh.lang.impl.java.CompilationFailureException: package sth does not exist
    cannot find symbol
      symbol:   class Echo
      location: class crash.commands.echo
    cannot find symbol
      symbol:   class Echo
      location: class crash.commands.echo

但是当我从Idea运行时，一切正常。