uncaughtException java.lang.AbstractMethodError when install the signed APK of sample app

[RandunuK]

I'm getting the following exception when install the signed APK of the sample app.

    java.lang.AbstractMethodError: abstract method "io.github.rosemoe.editor.widget.SymbolPairMatch io.github.rosemoe.editor.interfaces.EditorLanguage.getSymbolPairs()"
        at io.github.rosemoe.editor.widget.CodeEditor.setEditorLanguage(CodeEditor.java:635)
        at io.github.rosemoe.editor.app.MainActivity.onCreate(MainActivity.java:95)
        at android.app.Activity.performCreate(Activity.java:6942)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1126)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2880)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2988)
        at android.app.ActivityThread.-wrap14(ActivityThread.java)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1631)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6682)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)

[itsaky]

I think this happens due to unimplemented getSymbolPairs method in JavaLanguage.

The JavaLanguage class should implement getSymbolPairs interface method and at least return null. Doing so, the error is fixed.

[RandunuK]

I think this happens due to unimplemented getSymbolPairs method in JavaLanguage.

The JavaLanguage class should implement getSymbolPairs interface method and at least return null. Doing so, the error is fixed.

yep, this will fix the issue.

@Override
    public SymbolPairMatch getSymbolPairs() {
        return new SymbolPairMatch.DefaultSymbolPairs();
    }

[itsaky]

I think this can be closed now...

[Rosemoe]

I reproduced this before the update on Android Lollipop. The problem seems to be caused by low Android version and will exists in other languages modules that didn't implement their own getSymbolPairs() method.
Default methods are supported since Android N. I'll remove default modifiers and implement them in subclasses.