VerifyError:拒绝类android.support.g.b，因为它在编译时验证失败 [英] VerifyError: Rejecting class android.support.g.b because it failed compile-time verification

问题描述

这类似于拒绝类，因为它无法编译- Android时间验证和 java.lang.VerifyError:使用发行版APK时，验证程序拒绝了Lollipop上的类，但是问题的根源仍然未知，所有提出的解决方案都无济于事.

This is similar to Rejecting class because it failed compile-time verification Android and java.lang.VerifyError: Verifier rejected class on Lollipop when using release APK but the origin of my problem is still unknown and all the proposed solutions do not help.

手动安装具有MultiDex支持并启用ProGuard的签名发行版APK会在启动时引发此异常:

Manually installing a signed release apk with MultiDex support and ProGuard enabled throws this exception on start:

475-475/? E/AndroidRuntime: FATAL EXCEPTION: main
                            Process: ..., PID: 475
                            java.lang.VerifyError: Verifier rejected class android.support.g.b due to bad method void android.support.g.b.<init>() (declaration of 'android.support.g.b' appears in /data/app/...-2/base.apk)
                                at ...MyApp.attachBaseContext(Unknown Source)
                                at android.app.Application.attach(Application.java:181)

-dontoptimize不会发生这种情况.当前的最小优化设置:

This will not happen with -dontoptimize. Current minimal optimization setting:

-optimizations "code/*"

在没有-optimizations或限制性较小的选项的情况下，我会遇到相同的错误.添加-keep class android.*也无济于事.我没有遇到"code/removal/*,code/simplification/*"错误，但这会忽略-assumenosideeffects

I get the same error without -optimizations or with less restrictive options. Adding -keep class android.* wont help either. I get no error with "code/removal/*,code/simplification/*", but this ignores -assumenosideeffects

android.support.g.b是混淆的android.support.multidex.MultiDex类本身，并且在调用覆盖的attachBaseContext(Context)时引起错误:

android.support.g.b is the obfuscated android.support.multidex.MultiDex class itself, and the error is caused when the overridden attachBaseContext(Context) is called:

@Override
protected void attachBaseContext(Context base) {

    super.attachBaseContext(base);
    MultiDex.install(this);
}

使用字节码查看器对该方法(默认构造函数)进行解码会导致:

Decoding this method (the default constructor) with the byte code viewer results in:

private b() { // <init> //()V
    return
}

• 通过类规范禁用优化将很有用.
• 替代方法:知道考虑-assumenosideeffects
的最小-optimizations选项
• It would be useful to disable optimization by class specification.
• Alternative: Knowing the minimum -optimizations option that considers -assumenosideeffects

推荐答案

请勿将成员通配符与-assumenosideeffects一起使用，因为这将溢出"到其他类的Object.参见 https://sourceforge.net/p/proguard/bugs/716/#98d4

Do not use member wildcards with -assumenosideeffects because this will "spill over" to Object for other classes. See https://sourceforge.net/p/proguard/bugs/716/#98d4

任何带有接口的规则都可能出现类似的问题.示例:

Similar problems may come up for any rules with interfaces. Example:

-assumenosideeffects class * implements Interface {
    public <init>();
    public Object interfacemethod(); # May concern methods with same signature in other Objects
}

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