Make utility classes final

import com.android.inputmethod.latin.InputTypeUtils;

import com.android.inputmethod.latin.R;

public class AccessibilityUtils {

public final class AccessibilityUtils {

    private static final String TAG = AccessibilityUtils.class.getSimpleName();

    private static final String CLASS = AccessibilityUtils.class.getClass().getName();

    private static final String PACKAGE = AccessibilityUtils.class.getClass().getPackage()

import java.lang.reflect.Field;

import java.lang.reflect.Method;

public class CompatUtils {

public final class CompatUtils {

    private static final String TAG = CompatUtils.class.getSimpleName();

    private static final String EXTRA_INPUT_METHOD_ID = "input_method_id";

    // TODO: Can these be constants instead of literal String constants?

import java.lang.reflect.Field;

public class EditorInfoCompatUtils {

public final class EditorInfoCompatUtils {

    // EditorInfo.IME_FLAG_FORCE_ASCII has been introduced since API#16 (JellyBean).

    private static final Field FIELD_IME_FLAG_FORCE_ASCII = CompatUtils.getField(

            EditorInfo.class, "IME_FLAG_FORCE_ASCII");

import java.lang.reflect.Method;

public class InputMethodServiceCompatUtils {

public final class InputMethodServiceCompatUtils {

    private static final Method METHOD_enableHardwareAcceleration =

            CompatUtils.getMethod(InputMethodService.class, "enableHardwareAcceleration");

import java.lang.reflect.Field;

public class SettingsSecureCompatUtils {

public final class SettingsSecureCompatUtils {

    private static final Field FIELD_ACCESSIBILITY_SPEAK_PASSWORD = CompatUtils.getField(

            android.provider.Settings.Secure.class, "ACCESSIBILITY_SPEAK_PASSWORD");