ProGuard中断JavaFX应用程序

Question

我试图混淆我的JavaFX应用程序，但它失败了。生成的结果不工作，我不明白为什么。由于fxml文件无法加载所有导入（ClassNotFoundException），因此生成的jar会失败。

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<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.VBox?>

<?import controls.CustomControl?>

<VBox fx:controller="sample.Controller"
          xmlns:fx="http://javafx.com/fxml">
    <children>
        <CustomControl>
            <children>
                <Button text="Test"></Button>
            </children>
        </CustomControl>
    </children>
</VBox>

-target 8

-injars ./out/artifacts/JavaFXApp/JavaFXApp.jar

-outjars ./out/obfuscated/Obfuscated.jar
-ignorewarnings

-printmapping ./out/obfuscated/proguard.map
-dontusemixedcaseclassnames
-dontshrink
-dontoptimize
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers

#-flattenpackagehierarchy
-repackageclasses 'p'
-allowaccessmodification

-libraryjars "<java.home>/lib/rt.jar"
-libraryjars "<java.home>/lib/javaws.jar"
-libraryjars "<java.home>/lib/ext/jfxrt.jar"

-adaptresourcefilecontents **.fxml,**.properties,META-INF/MANIFEST.MF,images/*.jar,publicCerts.store,production.version

-keepattributes javafx.fxml.FXML,Exceptions,InnerClasses,Signature,Deprecated,SourceFile,LineNumberTable,LocalVariable*Table,*Annotation*,Synthetic,EnclosingMethod
-keepclassmembers class * {
    @javafx.fxml.FXML *;
}

-keepclassmembernames public class com.javafx.main.Main, com.nywelt.sharkload.application.Main {
    public static void main(java.lang.String[]);
}
-keepclasseswithmembers public class com.javafx.main.Main, com.product.main.EntryFX, net.license.LicenseEntryPoint {
    public *; public static *;
}

**Obfuscated.jar**
- META-INF
--> MANIFEST.MF
- p
--> a.class
--> b.class
--> c.class
- sample
--> sample.fxml

Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));

现在结构看起来是这样的：

**Obfuscated_fixed.jar**
- META-INF
--> MANIFEST.MF
- p
--> a.class
--> b.class
--> c.class
--> sample.fxml

sample.fxml文件现在如下所示：

<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.VBox?>

<?import p.a?>

<VBox fx:controller="p.b"
          xmlns:fx="http://javafx.com/fxml">
    <children>
        <a>
            <children>
                <Button text="Test"></Button>
            </children>
        </a>
    </children>
</VBox>

现在这个罐子应该真的又能工作了，因为一切又正常了。但事实并非如此！fxml加载程序无法加载CustomControl（现在命名/模糊化为“.class”）。这是为什么？

E:\Eigene Programme\GuardTest\out\obfuscated>java -jar Obfuscated_fixed.jar
Exception in Application start method
Exception in thread "main" java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at sun.launcher.LauncherHelper$FXHelper.main(Unknown Source)
Caused by: java.lang.RuntimeException: Exception in Application start method
        at com.sun.javafx.application.LauncherImpl.launchApplication1(Unknown So
urce)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$152(
Unknown Source)
        at com.sun.javafx.application.LauncherImpl$$Lambda$49/849460928.run(Unkn
own Source)
        at java.lang.Thread.run(Unknown Source)
Caused by: javafx.fxml.LoadException:
file:/E:/Eigene%20Programme/GuardTest/out/obfuscated/Obfuscated_fixed.jar!/p/sam
ple.fxml

        at javafx.fxml.FXMLLoader.constructLoadException(Unknown Source)
        at javafx.fxml.FXMLLoader.importClass(Unknown Source)
        at javafx.fxml.FXMLLoader.processImport(Unknown Source)
        at javafx.fxml.FXMLLoader.processProcessingInstruction(Unknown Source)
        at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml.FXMLLoader.load(Unknown Source)
        at p.c.start(Main.java:13)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$159
(Unknown Source)
        at com.sun.javafx.application.LauncherImpl$$Lambda$52/663980963.run(Unkn
own Source)
        at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$172(Unknown
 Source)
        at com.sun.javafx.application.PlatformImpl$$Lambda$46/410424423.run(Unkn
own Source)
        at com.sun.javafx.application.PlatformImpl.lambda$null$170(Unknown Sourc
e)
        at com.sun.javafx.application.PlatformImpl$$Lambda$48/1149216748.run(Unk
nown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl.lambda$runLater$171(Unknown S
ource)
        at com.sun.javafx.application.PlatformImpl$$Lambda$47/1963387170.run(Unk
nown Source)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source)
        at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at com.sun.glass.ui.win.WinApplication.lambda$null$145(Unknown Source)
        at com.sun.glass.ui.win.WinApplication$$Lambda$36/237061348.run(Unknown
Source)
        ... 1 more
Caused by: java.lang.ClassNotFoundException
        at javafx.fxml.FXMLLoader.loadType(Unknown Source)
        ... 26 more

E:\Eigene Programme\GuardTest\out\obfuscated>Pause
Drücken Sie eine beliebige Taste . . .

在主类中使用

FXMLLoader.setDefaultClassLoader(this.getClass().getClassLoader());

也无济于事。

IntelliJ生成的jar工件编译为：./out/artifacts/javafxapp/javafxapp.jar

在./out/obfuscated/obfuscated.Jar下可以找到模糊化的Jar

经过模糊处理但已固定（至少应该是）的jar，如上所述:./out/obfuscated/obfuscated_fixed.jar

为了证明'sample.fxml'文件中的import语句导致了问题，我从fxml文件中删除了自定义控件，并将其保存到（工作）JAR:./out/obfuscated/obfuscated_fixed_work.jar

很抱歉问了这么长的问题。无论如何，我希望你会帮助我：）

Answer 1

我找到解决办法了！问题是FXML不能导入不以大写字母开头的类。因此，必须提供ProGuard用于混淆的可用名称列表。这是由以下机构完成的：

-classobfuscationdictionary obfuscationClassNames.txt

其中ObfuscationClassNames.txt包含可用类名的行分隔列表：

A
B
C
D
...