Mac 打开JD-GUI报错：ERROR launching ‘JD-GUI‘

ERROR launching 'JD-GUI'
You need to have JAVA installed on your Mac!\nVisit http://java.com for more information...

github.com/java-decomp…

解决方案

找到JAVA_HOME

$ echo $JAVA_HOME
/Users/Shared/jre/

修改/Applications/JD-GUI.app/Contents/MacOS/universalJavaApplicationStub.sh

/Users/Shared/jre/bin/java -jar /Applications/JD-GUI.app/Contents/Resources/Java/jd-gui-1.6.6-min.jar

原因

我下载的 JD-GUI包内容是这样:

找报错信息

用命令行执行

cd /Applications/JD-GUI.app/Contents/MacOS
sh universalJavaApplicationStub.sh

有报错

Exception in thread "main" java.lang.IllegalAccessError: class org.jd.gui.OsxApp (in unnamed module @0x6bc168e5) cannot access class com.apple.eawt.Application (in module java.desktop) because module java.desktop does not export com.apple.eawt to unnamed module @0x6bc168e5
	at org.jd.gui.OsxApp.main(Unknown Source)

这里有连个类: org.jd.gui.OsxApp & com.apple.eawt.Application

定位源码

源码 github.com/java-decomp…

package org.jd.gui;

import com.apple.eawt.Application;

public class OsxApp extends App {

    @SuppressWarnings("unchecked")
    public static void main(String[] args) {
        // Create an instance of the mac OSX Application class
        Application application = Application.getApplication();

        App.main(args);

        // Add an handle invoked when the application is asked to open a list of files
        application.setOpenFileHandler(e -> controller.openFiles(e.getFiles()));

        // Add an handle invoked when the application is asked to quit
        application.setQuitHandler((e, r) -> System.exit(0));
    }
}

JD-GUI源码引用了com.apple.eawt.Application，但我们的jdk环境并没有这个类。

如何解决？

我估计com.apple.eawt在旧版本Mac存在，但mac升级后，com.apple.eawt就弃用了。所以我们只要避开OsxApp引用到的Application就可以了。

方案已经写在文章开头