private int headerSize() {
    /*
     * Because of how this instance was set up, this is the same
     * as the alignment.
     */
    return getAlignment();
  }
Get the size of the header of this list.

@return {@code >= 0;} the header size
android/android_framework/dex-maker/src/main/java/com/android/dx/dex/file/UniformListItem.java