我有两个不同的模块： MultiRealm 以及 SurvivalRealm . 多领域提供了一个抽象类（loadedrealm），该类 SurvivalRealm （在模块中） SurvivalRealm )延伸。现在，multirealm尝试从jar加载survivalrealm类。但在尝试加载时，出现以下错误： java.lang.NoClassDefFoundError: net/lightbluefoxlabs/dev/multirealm/core/multirealmcore/Realms/LoadedRealm 哪里 net/lightbluefoxlabs/dev/multirealm/core/multirealmcore/Realms/LoadedRealm 是loadedrealm类的正确位置。下面是stacktrace：

[23:03:52] [Thread-10/WARN]:    at java.lang.ClassLoader.defineClass1(Native Method)
[23:03:52] [Thread-10/WARN]:    at java.lang.ClassLoader.defineClass(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.security.SecureClassLoader.defineClass(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.net.URLClassLoader.defineClass(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.net.URLClassLoader.access$100(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.net.URLClassLoader$1.run(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.net.URLClassLoader$1.run(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.security.AccessController.doPrivileged(Native Method)
[23:03:52] [Thread-10/WARN]:    at java.net.URLClassLoader.findClass(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at net.lightbluefoxlabs.dev.multirealm.core.multirealmcore.Realms.LoadedRealm.RealmFactory(LoadedRealm.java:54)
[23:03:52] [Thread-10/WARN]:    at net.lightbluefoxlabs.dev.multirealm.core.multirealmcore.Realms.LoadedRealm.RealmFactory(LoadedRealm.java:20)
[23:03:52] [Thread-10/WARN]:    at net.lightbluefoxlabs.dev.multirealm.core.multirealmcore.Realms.RealmManager.Initialize(RealmManager.java:22)
[23:03:52] [Thread-10/WARN]:    at net.lightbluefoxlabs.dev.multirealm.core.multirealmcore.Realms.RealmManager.lambda$InitializeAsync$0(RealmManager.java:39)
[23:03:52] [Thread-10/WARN]:    at java.lang.Thread.run(Unknown Source)
[23:03:52] [Thread-10/WARN]: Caused by: java.lang.ClassNotFoundException: net.lightbluefoxlabs.dev.multirealm.core.multirealmcore.Realms.LoadedRealm
[23:03:52] [Thread-10/WARN]:    at java.net.URLClassLoader.findClass(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[23:03:52] [Thread-10/WARN]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[23:03:52] [Thread-10/WARN]:    ... 16 more

以下是survivalrealm类：

import net.lightbluefoxlabs.dev.multirealm.core.multirealmcore.Realms.LoadedRealm;
import net.lightbluefoxlabs.dev.multirealm.core.multirealmcore.Realms.Worlds.RealmWorld;

public class SurvivalRealm extends LoadedRealm {

    public SurvivalRealm(String RealmPath) {
        super(RealmPath);
        Load();
    }

    @Override
    public void Load() {
        //LoadStuff
    }

    @Override
    public void Unload() {

    }
}

... loadedrealm中的静态函数尝试导入此类：

public static LoadedRealm RealmFactory(String jarPath, String RealmPath)  throws RealmLoadException{
        try {
            File file = new File(jarPath);
            URLClassLoader c = new URLClassLoader(new URL[]{file.getAbsoluteFile().toURI().toURL()});
            Class<?> realmClass = c.loadClass(RealmClass);
            return (LoadedRealm)(realmClass.getDeclaredConstructor(String.class).newInstance(RealmPath));
        }catch (Exception e){
            throw new RealmLoadException(e);
        }
    }

以下是结构图：

multirealm模块不导入/“know about”（请原谅我的术语）survivalrealm模块，只是相反。
我只是想做些不可能的事吗？如果你需要.iml文件，尽管问。任何帮助都是非常感谢的，我已经试着解决这个问题基本上一整天了。感谢您阅读本期初级读物。