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ProGuard混淆 - java.lang.NoSuchMethodError:getPointer(ProGuard obfuscation - java.lang.NoSuchMethodError: getPointer)

我试图混淆我写的游戏。 我把它缩小到一个非常基本的项目来说明问题(项目可以在这里找到: https//github.com/dschneider/libgdx-proguard-test )。

您必须在终端中安装ant并运行make desktop来编译和混淆项目。 尝试之后运行混淆的jar时会发生以下错误:

Exception in thread "main" java.lang.NoSuchMethodError: getPointer
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1894)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1851)
at java.lang.Runtime.load0(Runtime.java:795)
at java.lang.System.load(System.java:1062)
at org.lwjgl.Sys$1.run(Sys.java:70)
at java.security.AccessController.doPrivileged(Native Method)
at org.lwjgl.Sys.b(Sys.java:66)
at org.lwjgl.Sys.c(Sys.java:95)
at org.lwjgl.Sys.<clinit>(Sys.java:112)
at org.lwjgl.openal.AL.<clinit>(AL.java:59)
at com.badlogic.gdx.backends.openal.OpenALAudio.<init>(OpenALAudio.java:70)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.<init>(LwjglApplication.java:82)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.<init>(LwjglApplication.java:64)
at com.libgdxproguard.test.Main.main(Main.java:14)

我错过了什么吗? 当我告诉ProGuard不要混淆代码时,它会在之后运行。 显然有些东西被混淆了什么不应该被混淆,但我不知道如何解决这个错误。


I am trying to obfuscate a game that I wrote. I slimmed it down to a very basic project to illustrate the problem (the project can be found here: https://github.com/dschneider/libgdx-proguard-test).

You have to install ant and run make desktop in terminal to compile and obfuscate the project. The following error occurs when trying to run the obfuscated jar afterwards:

Exception in thread "main" java.lang.NoSuchMethodError: getPointer
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1894)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1851)
at java.lang.Runtime.load0(Runtime.java:795)
at java.lang.System.load(System.java:1062)
at org.lwjgl.Sys$1.run(Sys.java:70)
at java.security.AccessController.doPrivileged(Native Method)
at org.lwjgl.Sys.b(Sys.java:66)
at org.lwjgl.Sys.c(Sys.java:95)
at org.lwjgl.Sys.<clinit>(Sys.java:112)
at org.lwjgl.openal.AL.<clinit>(AL.java:59)
at com.badlogic.gdx.backends.openal.OpenALAudio.<init>(OpenALAudio.java:70)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.<init>(LwjglApplication.java:82)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.<init>(LwjglApplication.java:64)
at com.libgdxproguard.test.Main.main(Main.java:14)

Am I missing something? When I tell ProGuard to not obfuscate the code, it works afterwards. Apparently something is obfuscated what shouldn't be obfuscated, but I am not sure how to solve this error.


原文:https://stackoverflow.com/questions/20910593
更新时间:2021-11-04 13:11

最满意答案

实际上,我以前很想这样做,但只是想出了这个想法。 你可以翻译

trait T(implicit impl: ClassName) {
  def foo = ... // using impl here
}

[EDITED:原始版本未提供对其他方法的隐式访问]

trait T {
  // no need to ever use it outside T
  protected case class ClassNameW(implicit val wrapped: ClassName)

  // normally defined by caller as val implWrap = ClassNameW 
  protected val implWrap: ClassNameW 

  // will have to repeat this when you extend T and need access to the implicit
  import implWrap.wrapped

  def foo = ... // using wrapped here
}

Actually, I've wanted this quite often before, but just came up with this idea. You can translate

trait T(implicit impl: ClassName) {
  def foo = ... // using impl here
}

to [EDITED: original version didn't provide access to implicit for other methods]

trait T {
  // no need to ever use it outside T
  protected case class ClassNameW(implicit val wrapped: ClassName)

  // normally defined by caller as val implWrap = ClassNameW 
  protected val implWrap: ClassNameW 

  // will have to repeat this when you extend T and need access to the implicit
  import implWrap.wrapped

  def foo = ... // using wrapped here
}

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