public final String offsetString() {
    return '[' + Integer.toHexString(getAbsoluteOffset()) + ']';
  }
Gets the absolute offset of this item as a string, suitable for including in annotations.

@return {@code non-null;} the offset string
android/android_framework/dex-maker/src/main/java/com/android/dx/dex/file/OffsettedItem.java