Keep inner interface method names in proguard

Question

Lets say I have..

public class SomeClass {


    public interface someInterface {

        public void firstMethod(String variable);


        public void secondMethod(String variable);


        public void thirdMethod();

    }
}

and I do..

-keep,includedescriptorclasses public class com.somepackage.SomeClass {
    <fields>;
    <methods>;
}

-keep public interface com.somepackage.someInterface {*;}

I end up with

public interface someInterface {

        public void a(String variable);


        public void a(String variable);


        public void a();

    }

How do I ensure this interface's method names are not obfuscated while still obfuscating the rest of the class?

If its inside of a class, shouldn't the proguard parameters include your outer class as part of the full name of the interface? — Morrison Chang, Sep 04 '14 at 16:50

score 44 · Accepted Answer · answered Sep 07 '14 at 15:24

44

ProGuard uses the naming convention of Java bytecode, as seen in class file names and stacktraces. Therefore:

-keep public interface com.somepackage.SomeClass$someInterface {*;}

answered Sep 07 '14 at 15:24

Eric Lafortune

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5

I lost an hour because I used above syntax which didn't work for me. The reason was that I define my interfaces without the public accessor (it's obsolete since all interfaces are public). In that case you need to use: -keep interface com.somepackage.SomeClass$someInterface {*;}. I think ProGuard should be "clever" enough to handle his case automatically. – Emanuel Moecklin Jan 30 '17 at 21:18

score 2 · Answer 2 · answered Oct 04 '17 at 20:29

2

I tried the following and it seemed to work:

-keep interface com.somepackage.SomeClass$someInterface

answered Oct 04 '17 at 20:29

Phileo99

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score 1 · Answer 3 · edited Oct 21 '19 at 13:35

1

For those who are looking for how to keep a custom annotation (which is defined in a @interface in java) retaining its all members,

you should actually use like below to keep it:

-keep @interface com.your.annotation.interface. {*;}

edited Oct 21 '19 at 13:35

Meraj al Maksud

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answered Oct 21 '19 at 12:56

SebastianX

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isnt that you should have it like -keep @interface com.your.annotation.interface.** { *; } or it is the different meaning? – Emil Jul 10 '22 at 23:15

Keep inner interface method names in proguard

3 Answers3