安卓VerifyError异常

Question

我在我的应用程序中使用指纹传感器。我知道api可用于棉花糖和更高版本的操作系统。因此，当在我的类中运行时，我会动态检查sdk版本。

即使是指纹不能执行的代码，我在4.0 android操作系统上也会遇到以下异常，而在5.0和更高版本上也是如此。

**java.lang.VerifyError: com/cloudzon/gratzeez1/GiveGratuityActivity
                                                                        at java.lang.Class.newInstanceImpl(Native Method)
                                                                        at java.lang.Class.newInstance(Class.java:1215)
                                                                        at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
                                                                        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2265)
                                                                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)
                                                                        at android.app.ActivityThread.access$800(ActivityThread.java:151)
                                                                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)
                                                                        at android.os.Handler.dispatchMessage(Handler.java:110)
                                                                        at android.os.Looper.loop(Looper.java:193)
                                                                        at android.app.ActivityThread.main(ActivityThread.java:5322)
                                                                        at java.lang.reflect.Method.invokeNative(Native Method)
                                                                        at java.lang.reflect.Method.invoke(Method.java:515)
                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
                                                                        at dalvik.system.NativeStart.main(Native Method)**

我发现因为在我的类中使用了下面的代码，所以我面临着这个问题。

public boolean cipherInit() {
    try {
        cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7);
    } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
        throw new RuntimeException("Failed to get Cipher", e);
    }

    try {
        keyStore.load(null);
        SecretKey key = (SecretKey) keyStore.getKey(KEY_NAME,
                null);
        cipher.init(Cipher.ENCRYPT_MODE, key);
        return true;
    } catch (KeyPermanentlyInvalidatedException e) {
        return false;
    } catch (KeyStoreException | CertificateException | UnrecoverableKeyException | IOException | NoSuchAlgorithmException | InvalidKeyException e) {
        throw new RuntimeException("Failed to init Cipher", e);
    }
}

Answer 1

我也遇到了这个问题，另一个答案让我走上了正确的道路；How to Use Unsupported Exception for Lower Platform Version

我将该方法更改为；

public boolean cipherInit() {
    try {
        cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7);
    } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
        throw new RuntimeException("Failed to get Cipher", e);
    }

    try {
        keyStore.load(null);
        SecretKey key = (SecretKey) keyStore.getKey(KEY_NAME, null);
        cipher.init(Cipher.ENCRYPT_MODE, key);
        return true;
    } catch (Exception e) {
        if(e instanceof KeyPermanentlyInvalidatedException)
            return false;
        else if(e instanceof KeyStoreException|e instanceof CertificateException|e instanceof UnrecoverableKeyException|e instanceof IOException|e instanceof NoSuchAlgorithmException|e instanceof InvalidKeyException)
            throw new RuntimeException("Failed to init Cipher",e);
    }
    return false;
}

出于某种原因，将(KeyPermanentlyInvalidatedException的KeyPermanentlyInvalidatedException的catch块从KeyPermanentlyInvalidatedException)的e)更改为(e实例)似乎解决了这个问题。

Answer 2

我只需更改catch异常块即可解决此问题。KeyPermanentlyInvalidatedException是InvalidKeyException的子类，如果我们使用KeyPermanentlyInvalidatedException，就会得到VerifyError。

catch (KeyPermanentlyInvalidatedException e) {
(...)
}

相反，请使用InvalidKeyException

catch (InvalidKeyException e) {
(...)
}

@opt05 answer帮助我解决我的问题，但我不喜欢他使用instance of的方法。