Android: having a method reference to a private method causes normal method invocations to fail

[luontola]

See #17 (comment)

It might have to do with the normal method call still using invokespecial even though Retrolambda changes the method's visibility from private to package-private. Oracle JVM doesn't mind it, but maybe Android does.

Reproducing: https://github.com/naixx/PrivateMethodAndroidBug

set ANDROID_HOME=...\adt-bundle-windows-x86_64-20140321\sdk
[in "AVD Manager.exe" create virtual device and start the emulator]
adt-bundle-windows-x86_64-20140321\sdk\tools\monitor.bat

gradlew clean build
adt-bundle-windows-x86_64-20140321\sdk\platform-tools\adb.exe install -r app\build\apk\app-debug-unaligned.apk
[start the TestBug app in the emulator]

[luontola]

This is enough to reproduce:

package com.example.testbug.app;

import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;

import rx.Observable;

public class MainActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        methodCall();
    }

    private void problemPrivateMethod() {
    }

    void methodCall() {
        Runnable ref = MainActivity.this::problemPrivateMethod;
        problemPrivateMethod();
    }
}

05-18 17:12:54.986: E/AndroidRuntime(1263): java.lang.NoSuchMethodError: com.example.testbug.app.MainActivity.problemPrivateMethod
05-18 17:12:54.986: E/AndroidRuntime(1263):     at com.example.testbug.app.MainActivity.methodCall(MainActivity.java:22)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at com.example.testbug.app.MainActivity.onCreate(MainActivity.java:14)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at android.app.Activity.performCreate(Activity.java:5231)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at android.app.ActivityThread.access$800(ActivityThread.java:135)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at android.os.Handler.dispatchMessage(Handler.java:102)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at android.os.Looper.loop(Looper.java:136)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at android.app.ActivityThread.main(ActivityThread.java:5017)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at java.lang.reflect.Method.invokeNative(Native Method)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at java.lang.reflect.Method.invoke(Method.java:515)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
05-18 17:12:54.986: E/AndroidRuntime(1263):     at dalvik.system.NativeStart.main(Native Method)

[naixx]

Subscribing to the issue

[luontola]

This fix is included in Retrolambda 1.2.3