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Dex to Java decompiler

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Missing Routine Implementations

fosterbrereton opened this issue · comments

commented

Issue details

During decompilation I am shown three function prototypes for routines in a public class that extends Service:

/* JADX INFO: Access modifiers changed from: private */
public native int ReturnKey(byte[] bArr, byte[] bArr2);

/* JADX INFO: Access modifiers changed from: private */
public native void decrypt(byte[] bArr, byte[] bArr2, byte[] bArr3);

private native void encrypt(byte[] bArr, byte[] bArr2, byte[] bArr3);

However the implementation for these routines are not shown anywhere. While I am seeing decompilation errors, they do not appear to be related to either of these three routines. What am I missing?

Relevant log output or stacktrace

No response

Provide sample and class/method full name

No response

Jadx version

1.4.7

commented

@fosterbrereton these are native methods, and you should look for implementation in native libraries.
Simple example for usage of native methods in Java: https://stackoverflow.com/questions/18900736/what-are-native-methods-in-java-and-where-should-they-be-used
Unfortunately, jadx do not support decompilation of native libs, so you should use other decompilers for that.

commented

Okay, thank you for the pointer.