访问限制：类型“application”不是API（对所需库rt.jar的限制）

Question

代码如下：

package mscontroller;

import javax.swing.*;
import com.apple.eawt.Application;

public class Main {
    public static void main(String[] args)
    {
        Application app = new Application();
        app.setEnabledAboutMenu(true);

        AMEListener listener = new AMEListener();
        app.addApplicationListener(listener);
        JFrame mainFrame = new JFrame("Application Menu Example");
        mainFrame.setSize(500, 500);
        mainFrame.setVisible(true);
    }
}

Exception in thread "main" java.lang.Error: Unresolved compilation
problems:   Access restriction: The type 'Application' is not API
(restriction on required library
'/Library/Java/JavaVirtualMachines/jdk1.8.0_11.jdk/Contents/Home/jre/lib/rt.jar')
    Access restriction: The constructor 'Application()' is not API
(restriction on required library
'/Library/Java/JavaVirtualMachines/jdk1.8.0_11.jdk/Contents/Home/jre/lib/rt.jar')
    Access restriction: The type 'Application' is not API (restriction on
required library
'/Library/Java/JavaVirtualMachines/jdk1.8.0_11.jdk/Contents/Home/jre/lib/rt.jar')
    Access restriction: The method
'Application.setEnabledAboutMenu(boolean)' is not API (restriction on
required library
'/Library/Java/JavaVirtualMachines/jdk1.8.0_11.jdk/Contents/Home/jre/lib/rt.jar')
    AMEListener cannot be resolved to a type    AMEListener cannot be
resolved to a type

    at mscontroller.Main.main(Main.java:9)

eclipse是这样说的：

访问限制：类型“Application”不是API（对所需库“/library/java/javavirtualmachines/jdk1.8.0_11.jdk/contents/home/jre/lib/rt.jar”的限制）

Answer 1

删除现有/配置的系统库：Eclipse(IDE)->Project Explorer->项目名称->（选项）构建路径->配置构建路径->Java构建路径->库->（选择）JRE系统库[(For me）JRE1.8.0_231]->删除。

当前您处于相同的位置：Eclipse(IDE)->Project Explorer->Project Name->（Option）构建路径->Configure构建路径->Java构建路径->库

现在再次添加相同的系统库：添加库->JRE系统库->Workspace default JRE（（对我而言）JRE1.8.0_231)->Finish->Apply->Close。

现在等着做完吧。