The TextStyling-Java project build (on the top of c1663ac) crashes with the following stacktrace:

com.android.example.text.styling E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.android.example.text.styling, PID: 3843
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.example.text.styling/com.android.example.text.styling.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.io.FileDescriptor android.os.ParcelFileDescriptor.getFileDescriptor()' on a null object reference
…
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.io.FileDescriptor android.os.ParcelFileDescriptor.getFileDescriptor()' on a null object reference
at android.support.v4.graphics.TypefaceCompatUtil.mmap(TypefaceCompatUtil.java:98)
at android.support.v4.graphics.TypefaceCompatApi24Impl.createFromFontInfo(TypefaceCompatApi24Impl.java:140)
at android.support.v4.graphics.TypefaceCompat.createFromFontInfo(TypefaceCompat.java:167)
at android.support.v4.provider.FontsContractCompat.getFontInternal(FontsContractCompat.java:190)
at android.support.v4.provider.FontsContractCompat.getFontSync(FontsContractCompat.java:244)
at android.support.v4.graphics.TypefaceCompat.createFromResourcesFamilyXml(TypefaceCompat.java:124)
at android.support.v4.content.res.ResourcesCompat.loadFont(ResourcesCompat.java:390)
at android.support.v4.content.res.ResourcesCompat.loadFont(ResourcesCompat.java:336)
at android.support.v4.content.res.ResourcesCompat.getFont(ResourcesCompat.java:205)
at com.android.example.text.styling.MainActivity.onCreate(MainActivity.java:48)
…

The getColor(id) call is used in the androidTest: MarkdownBuilderTest.java

The test fails when run on emulators at version 22 and below. The path forward is to use the ContextCompat call which conveniently sorts out which call to use.

from: support-compat-27.0.2-sources.jar!\android\support\v4\content\ContextCompat.java

public static final int getColor(@NonNull Context context, @ColorRes int id) {
    if (Build.VERSION.SDK_INT >= 23) {
        return context.getColor(id);
    } else {
        return context.getResources().getColor(id);
    }
}

For reference:
https://stackoverflow.com/questions/31590714/getcolorint-id-deprecated-on-android-6-0-marshmallow-api-23

Some tests fail in the junit tests as there is an assumption that the line separator for the system is one character. While this is true for Android devices, junit tests run on the host system. On windows the separator is two characters long. This suggests that the line separator needs to be a parameter:

-            endOfParagraph++;
+            endOfParagraph += LINE_SEPARATOR.length();

List of line separators:
https://stackoverflow.com/questions/426397/do-line-endings-differ-between-windows-and-linux

This is what people accept as good in Stackoverflow ---> ² S _½ <--- but that does not work for me. I literally copied this and the result was not a subscript.

Do you have any other way to do it?

Thanks,