diff --git a/java/Android.mk b/java/Android.mk
index 154f3a2..837b2d9 100644
--- a/java/Android.mk
+++ b/java/Android.mk
@@ -17,7 +17,7 @@
 
 LOCAL_MODULE_TAGS := optional
 
-LOCAL_SRC_FILES := $(call all-java-files-under, src ../java-overridable/src)
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
 LOCAL_PACKAGE_NAME := LatinIME
 
diff --git a/java/src/com/android/inputmethod/compat/AppWorkaroundsHelper.java b/java/src/com/android/inputmethod/compat/AppWorkaroundsHelper.java
new file mode 100644
index 0000000..f5e56eb
--- /dev/null
+++ b/java/src/com/android/inputmethod/compat/AppWorkaroundsHelper.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.compat;
+
+import android.content.pm.PackageInfo;
+
+@SuppressWarnings("unused")
+public class AppWorkaroundsHelper {
+    private AppWorkaroundsHelper() {
+        // This helper class is not publicly instantiable.
+    }
+
+    public static boolean evaluateIsBrokenByRecorrection(final PackageInfo info) {
+        return false;
+    }
+}
diff --git a/java/src/com/android/inputmethod/dictionarypack/DictionaryPackConstants.java b/java/src/com/android/inputmethod/dictionarypack/DictionaryPackConstants.java
new file mode 100644
index 0000000..13caea4
--- /dev/null
+++ b/java/src/com/android/inputmethod/dictionarypack/DictionaryPackConstants.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.android.inputmethod.dictionarypack;
+
+/**
+ * A class to group constants for dictionary pack usage.
+ *
+ * This class only defines constants. It should not make any references to outside code as far as
+ * possible, as it's used to separate cleanly the keyboard code from the dictionary pack code; this
+ * is needed in particular to cleanly compile regression tests.
+ */
+public class DictionaryPackConstants {
+    /**
+     * The root domain for the dictionary pack, upon which authorities and actions will append
+     * their own distinctive strings.
+     */
+    private static final String DICTIONARY_DOMAIN = "com.android.inputmethod.dictionarypack.aosp";
+
+    /**
+     * Authority for the ContentProvider protocol.
+     */
+    // TODO: find some way to factorize this string with the one in the resources
+    public static final String AUTHORITY = DICTIONARY_DOMAIN;
+
+    /**
+     * The action of the intent for publishing that new dictionary data is available.
+     */
+    // TODO: make this different across different packages. A suggested course of action is
+    // to use the package name inside this string.
+    // NOTE: The appended string should be uppercase like all other actions, but it's not for
+    // historical reasons.
+    public static final String NEW_DICTIONARY_INTENT_ACTION = DICTIONARY_DOMAIN + ".newdict";
+
+    /**
+     * The action of the intent sent by the dictionary pack to ask for a client to make
+     * itself known. This is used when the settings activity is brought up for a client the
+     * dictionary pack does not know about.
+     */
+    public static final String UNKNOWN_DICTIONARY_PROVIDER_CLIENT = DICTIONARY_DOMAIN
+            + ".UNKNOWN_CLIENT";
+
+    // In the above intents, the name of the string extra that contains the name of the client
+    // we want information about.
+    public static final String DICTIONARY_PROVIDER_CLIENT_EXTRA = "client";
+
+    /**
+     * The action of the intent to tell the dictionary provider to update now.
+     */
+    public static final String UPDATE_NOW_INTENT_ACTION = DICTIONARY_DOMAIN
+            + ".UPDATE_NOW";
+
+    /**
+     * The intent action to inform the dictionary provider to initialize the db
+     * and update now.
+     */
+    public static final String INIT_AND_UPDATE_NOW_INTENT_ACTION = DICTIONARY_DOMAIN
+            + ".INIT_AND_UPDATE_NOW";
+}
diff --git a/java/src/com/android/inputmethod/dictionarypack/MetadataUriGetter.java b/java/src/com/android/inputmethod/dictionarypack/MetadataUriGetter.java
new file mode 100644
index 0000000..512d426
--- /dev/null
+++ b/java/src/com/android/inputmethod/dictionarypack/MetadataUriGetter.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.android.inputmethod.dictionarypack;
+
+import android.content.Context;
+
+/**
+ * Helper to get the metadata URI from its base URI.
+ */
+@SuppressWarnings("unused")
+public class MetadataUriGetter {
+    public static String getUri(final Context context, final String baseUri) {
+        return baseUri;
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/DictionaryFacilitatorProvider.java b/java/src/com/android/inputmethod/latin/DictionaryFacilitatorProvider.java
new file mode 100644
index 0000000..a48b41f
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/DictionaryFacilitatorProvider.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin;
+
+/**
+ * Factory for instantiating DictionaryFacilitator objects.
+ */
+public class DictionaryFacilitatorProvider {
+    public static DictionaryFacilitator getDictionaryFacilitator(boolean isNeededForSpellChecking) {
+        return new DictionaryFacilitatorImpl();
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/about/AboutPreferences.java b/java/src/com/android/inputmethod/latin/about/AboutPreferences.java
new file mode 100644
index 0000000..f60b189
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/about/AboutPreferences.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.about;
+
+import android.app.Fragment;
+
+/**
+ * Dummy class of AboutPreferences. Never use this.
+ */
+public final class AboutPreferences extends Fragment {
+    private AboutPreferences() {
+        // Prevents this from being instantiated
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/accounts/AccountStateChangedListener.java b/java/src/com/android/inputmethod/latin/accounts/AccountStateChangedListener.java
new file mode 100644
index 0000000..60d420f
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/accounts/AccountStateChangedListener.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.accounts;
+
+import android.support.annotation.NonNull;
+
+import javax.annotation.Nullable;
+
+/**
+ * Handles changes to account used to sign in to the keyboard.
+ * e.g. account switching/sign-in/sign-out from the keyboard
+ * user toggling the sync preference.
+ */
+public class AccountStateChangedListener {
+
+    /**
+     * Called when the current account being used in keyboard is signed out.
+     *
+     * @param oldAccount the account that was signed out of.
+     */
+    public static void onAccountSignedOut(@NonNull String oldAccount) {
+    }
+
+    /**
+     * Called when the user signs-in to the keyboard.
+     * This may be called when the user switches accounts to sign in with a different account.
+     *
+     * @param oldAccount the previous account that was being used for sign-in.
+     *        May be null for a fresh sign-in.
+     * @param newAccount the account being used for sign-in.
+     */
+    public static void onAccountSignedIn(@Nullable String oldAccount, @NonNull String newAccount) {
+    }
+
+    /**
+     * Called when the user toggles the sync preference.
+     *
+     * @param account the account being used for sync.
+     * @param syncEnabled indicates whether sync has been enabled or not.
+     */
+    public static void onSyncPreferenceChanged(@Nullable String account, boolean syncEnabled) {
+    }
+
+    /**
+     * Forces an immediate sync to happen.
+     * This should only be used for debugging purposes.
+     *
+     * @param account the account to use for sync.
+     */
+    public static void forceSync(@Nullable String account) {
+    }
+
+    /**
+     * Forces an immediate deletion of user's data.
+     * This should only be used for debugging purposes.
+     *
+     * @param account the account to use for sync.
+     */
+    public static void forceDelete(@Nullable String account) {
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/accounts/LoginAccountUtils.java b/java/src/com/android/inputmethod/latin/accounts/LoginAccountUtils.java
new file mode 100644
index 0000000..dcc64a2
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/accounts/LoginAccountUtils.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.accounts;
+
+import android.content.Context;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Utility class for retrieving accounts that may be used for login.
+ */
+public class LoginAccountUtils {
+    /**
+     * This defines the type of account this class deals with.
+     * This account type is used when listing the accounts available on the device for login.
+     */
+    public static final String ACCOUNT_TYPE = "";
+
+    private LoginAccountUtils() {
+        // This utility class is not publicly instantiable.
+    }
+
+    /**
+     * Get the accounts available for login.
+     *
+     * @return an array of accounts. Empty (never null) if no accounts are available for login.
+     */
+    @Nonnull
+    @SuppressWarnings("unused")
+    public static String[] getAccountsForLogin(final Context context) {
+        return new String[0];
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/define/DebugFlags.java b/java/src/com/android/inputmethod/latin/define/DebugFlags.java
new file mode 100644
index 0000000..c509e83
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/define/DebugFlags.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.define;
+
+import android.content.SharedPreferences;
+
+public final class DebugFlags {
+    public static final boolean DEBUG_ENABLED = false;
+
+    private DebugFlags() {
+        // This class is not publicly instantiable.
+    }
+
+    @SuppressWarnings("unused")
+    public static void init(final SharedPreferences prefs) {
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/define/DecoderSpecificConstants.java b/java/src/com/android/inputmethod/latin/define/DecoderSpecificConstants.java
new file mode 100644
index 0000000..7f57ce8
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/define/DecoderSpecificConstants.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.inputmethod.latin.define;
+
+/**
+ * Decoder specific constants for LatinIme.
+ */
+public class DecoderSpecificConstants {
+
+    // Must be equal to MAX_WORD_LENGTH in native/jni/src/defines.h
+    public static final int DICTIONARY_MAX_WORD_LENGTH = 48;
+
+    // (MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1)-gram is supported in Java side. Needs to modify
+    // MAX_PREV_WORD_COUNT_FOR_N_GRAM in native/jni/src/defines.h for suggestions.
+    public static final int MAX_PREV_WORD_COUNT_FOR_N_GRAM = 3;
+
+    public static final String DECODER_DICT_SUFFIX = "";
+
+    public static final boolean SHOULD_VERIFY_MAGIC_NUMBER = true;
+    public static final boolean SHOULD_VERIFY_CHECKSUM = true;
+    public static final boolean SHOULD_USE_DICT_VERSION = true;
+    public static final boolean SHOULD_AUTO_CORRECT_USING_NON_WHITE_LISTED_SUGGESTION = false;
+    public static final boolean SHOULD_REMOVE_PREVIOUSLY_REJECTED_SUGGESTION = true;
+}
diff --git a/java/src/com/android/inputmethod/latin/define/JniLibName.java b/java/src/com/android/inputmethod/latin/define/JniLibName.java
new file mode 100644
index 0000000..abfc36d
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/define/JniLibName.java
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.define;
+
+public final class JniLibName {
+    private JniLibName() {
+        // This class is not publicly instantiable.
+    }
+
+    public static final String JNI_LIB_NAME = "jni_latinime";
+}
diff --git a/java/src/com/android/inputmethod/latin/define/ProductionFlags.java b/java/src/com/android/inputmethod/latin/define/ProductionFlags.java
new file mode 100644
index 0000000..f31c208
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/define/ProductionFlags.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.define;
+
+public final class ProductionFlags {
+    private ProductionFlags() {
+        // This class is not publicly instantiable.
+    }
+
+    public static final boolean IS_HARDWARE_KEYBOARD_SUPPORTED = false;
+
+    /**
+     * Include all suggestions from all dictionaries in
+     * {@link com.android.inputmethod.latin.SuggestedWords#mRawSuggestions}.
+     */
+    public static final boolean INCLUDE_RAW_SUGGESTIONS = false;
+
+    /**
+     * When false, the metrics logging is not yet ready to be enabled.
+     */
+    public static final boolean IS_METRICS_LOGGING_SUPPORTED = false;
+
+    /**
+     * When {@code false}, the split keyboard is not yet ready to be enabled.
+     */
+    public static final boolean IS_SPLIT_KEYBOARD_SUPPORTED = true;
+
+    /**
+     * When {@code false}, account sign-in in keyboard is not yet ready to be enabled.
+     */
+    public static final boolean ENABLE_ACCOUNT_SIGN_IN = false;
+
+    /**
+     * When {@code true}, user history dictionary sync feature is ready to be enabled.
+     */
+    public static final boolean ENABLE_USER_HISTORY_DICTIONARY_SYNC =
+            ENABLE_ACCOUNT_SIGN_IN && false;
+
+    /**
+     * When {@code true}, the IME maintains per account {@link UserHistoryDictionary}.
+     */
+    public static final boolean ENABLE_PER_ACCOUNT_USER_HISTORY_DICTIONARY =
+            ENABLE_ACCOUNT_SIGN_IN && false;
+}
diff --git a/java/src/com/android/inputmethod/latin/settings/AdditionalFeaturesSettingUtils.java b/java/src/com/android/inputmethod/latin/settings/AdditionalFeaturesSettingUtils.java
new file mode 100644
index 0000000..4e8a10b
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/settings/AdditionalFeaturesSettingUtils.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.settings;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.PreferenceFragment;
+import android.view.inputmethod.InputMethodSubtype;
+
+import com.android.inputmethod.latin.RichInputMethodSubtype;
+import com.android.inputmethod.latin.RichInputMethodManager;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Utility class for managing additional features settings.
+ */
+@SuppressWarnings("unused")
+public class AdditionalFeaturesSettingUtils {
+    public static final int ADDITIONAL_FEATURES_SETTINGS_SIZE = 0;
+
+    private AdditionalFeaturesSettingUtils() {
+        // This utility class is not publicly instantiable.
+    }
+
+    public static void addAdditionalFeaturesPreferences(
+            final Context context, final PreferenceFragment settingsFragment) {
+        // do nothing.
+    }
+
+    public static void readAdditionalFeaturesPreferencesIntoArray(final Context context,
+            final SharedPreferences prefs, final int[] additionalFeaturesPreferences) {
+        // do nothing.
+    }
+
+    @Nonnull
+    public static RichInputMethodSubtype createRichInputMethodSubtype(
+            @Nonnull final RichInputMethodManager imm,
+            @Nonnull final InputMethodSubtype subtype,
+            final Context context) {
+        return new RichInputMethodSubtype(subtype);
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/touchinputconsumer/GestureConsumer.java b/java/src/com/android/inputmethod/latin/touchinputconsumer/GestureConsumer.java
new file mode 100644
index 0000000..8291b4f
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/touchinputconsumer/GestureConsumer.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.touchinputconsumer;
+
+import android.view.inputmethod.EditorInfo;
+
+import com.android.inputmethod.keyboard.Keyboard;
+import com.android.inputmethod.latin.DictionaryFacilitator;
+import com.android.inputmethod.latin.SuggestedWords;
+import com.android.inputmethod.latin.common.InputPointers;
+import com.android.inputmethod.latin.inputlogic.PrivateCommandPerformer;
+
+import java.util.Locale;
+
+/**
+ * Stub for GestureConsumer.
+ * <br>
+ * The methods of this class should only be called from a single thread, e.g.,
+ * the UI Thread.
+ */
+@SuppressWarnings("unused")
+public class GestureConsumer {
+    public static final GestureConsumer NULL_GESTURE_CONSUMER =
+            new GestureConsumer();
+
+    public static GestureConsumer newInstance(
+            final EditorInfo editorInfo, final PrivateCommandPerformer commandPerformer,
+            final Locale locale, final Keyboard keyboard) {
+        return GestureConsumer.NULL_GESTURE_CONSUMER;
+    }
+
+    private GestureConsumer() {
+    }
+
+    public boolean willConsume() {
+        return false;
+    }
+
+    public void onInit(final Locale locale, final Keyboard keyboard) {
+    }
+
+    public void onGestureStarted(final Locale locale, final Keyboard keyboard) {
+    }
+
+    public void onGestureCanceled() {
+    }
+
+    public void onGestureCompleted(final InputPointers inputPointers) {
+    }
+
+    public void onImeSuggestionsProcessed(final SuggestedWords suggestedWords,
+            final int composingStart, final int composingLength,
+            final DictionaryFacilitator dictionaryFacilitator) {
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/utils/DictionaryHeaderUtils.java b/java/src/com/android/inputmethod/latin/utils/DictionaryHeaderUtils.java
new file mode 100644
index 0000000..5eb613c
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/utils/DictionaryHeaderUtils.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.inputmethod.latin.utils;
+
+import com.android.inputmethod.latin.AssetFileAddress;
+import com.android.inputmethod.latin.makedict.DictionaryHeader;
+
+import java.io.File;
+
+public class DictionaryHeaderUtils {
+
+    public static int getContentVersion(AssetFileAddress fileAddress) {
+        final DictionaryHeader header = DictionaryInfoUtils.getDictionaryFileHeaderOrNull(
+                new File(fileAddress.mFilename), fileAddress.mOffset, fileAddress.mLength);
+        return Integer.parseInt(header.mVersionString);
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/utils/FeedbackUtils.java b/java/src/com/android/inputmethod/latin/utils/FeedbackUtils.java
new file mode 100644
index 0000000..67de8ba
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/utils/FeedbackUtils.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.utils;
+
+import android.content.Context;
+import android.content.Intent;
+
+@SuppressWarnings("unused")
+public class FeedbackUtils {
+    public static boolean isHelpAndFeedbackFormSupported() {
+        return false;
+    }
+
+    public static void showHelpAndFeedbackForm(Context context) {
+    }
+
+    public static int getAboutKeyboardTitleResId() {
+        return 0;
+    }
+
+    public static Intent getAboutKeyboardIntent(Context context) {
+        return null;
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/utils/FileTransforms.java b/java/src/com/android/inputmethod/latin/utils/FileTransforms.java
new file mode 100644
index 0000000..9f4584e
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/utils/FileTransforms.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.utils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.zip.GZIPInputStream;
+
+public final class FileTransforms {
+    public static OutputStream getCryptedStream(OutputStream out) {
+        // Crypt the stream.
+        return out;
+    }
+
+    public static InputStream getDecryptedStream(InputStream in) {
+        // Decrypt the stream.
+        return in;
+    }
+
+    public static InputStream getUncompressedStream(InputStream in) throws IOException {
+        return new GZIPInputStream(in);
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/utils/ManagedProfileUtils.java b/java/src/com/android/inputmethod/latin/utils/ManagedProfileUtils.java
new file mode 100644
index 0000000..ef1872b
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/utils/ManagedProfileUtils.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.utils;
+
+import android.content.Context;
+
+import com.android.inputmethod.annotations.UsedForTesting;
+
+public class ManagedProfileUtils {
+    private static ManagedProfileUtils INSTANCE = new ManagedProfileUtils();
+    private static ManagedProfileUtils sTestInstance;
+
+    private ManagedProfileUtils() {
+        // This utility class is not publicly instantiable.
+    }
+
+    @UsedForTesting
+    public static void setTestInstance(final ManagedProfileUtils testInstance) {
+        sTestInstance = testInstance;
+    }
+
+    public static ManagedProfileUtils getInstance() {
+        return sTestInstance == null ? INSTANCE : sTestInstance;
+    }
+
+    public boolean hasWorkProfile(final Context context) {
+        return false;
+    }
+}
\ No newline at end of file
diff --git a/java/src/com/android/inputmethod/latin/utils/MetadataFileUriGetter.java b/java/src/com/android/inputmethod/latin/utils/MetadataFileUriGetter.java
new file mode 100644
index 0000000..97fb17d
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/utils/MetadataFileUriGetter.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.utils;
+
+import com.android.inputmethod.latin.R;
+
+import android.content.Context;
+
+/**
+ * Helper class to get the metadata URI and the additional ID.
+ */
+@SuppressWarnings("unused")
+public class MetadataFileUriGetter {
+    private MetadataFileUriGetter() {
+        // This helper class is not instantiable.
+    }
+
+    public static String getMetadataUri(final Context context) {
+        return context.getString(R.string.dictionary_pack_metadata_uri);
+    }
+
+    public static String getMetadataAdditionalId(final Context context) {
+        return "";
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/utils/StatsUtils.java b/java/src/com/android/inputmethod/latin/utils/StatsUtils.java
new file mode 100644
index 0000000..03e5847
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/utils/StatsUtils.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.utils;
+
+import android.view.inputmethod.InputMethodSubtype;
+
+import com.android.inputmethod.latin.DictionaryFacilitator;
+import com.android.inputmethod.latin.RichInputMethodManager;
+import com.android.inputmethod.latin.SuggestedWords;
+import com.android.inputmethod.latin.settings.SettingsValues;
+
+import javax.annotation.Nullable;
+
+@SuppressWarnings("unused")
+public final class StatsUtils {
+
+    private StatsUtils() {
+        // Intentional empty constructor.
+    }
+
+    public static void onCreate(final SettingsValues settingsValues,
+            RichInputMethodManager richImm) {
+    }
+
+    public static void onPickSuggestionManually(final SuggestedWords suggestedWords,
+            final SuggestedWords.SuggestedWordInfo suggestionInfo,
+            final DictionaryFacilitator dictionaryFacilitator) {
+    }
+
+    public static void onBackspaceWordDelete(int wordLength) {
+    }
+
+    public static void onBackspacePressed(int lengthToDelete) {
+    }
+
+    public static void onBackspaceSelectedText(int selectedTextLength) {
+    }
+
+    public static void onDeleteMultiCharInput(int multiCharLength) {
+    }
+
+    public static void onRevertAutoCorrect() {
+    }
+
+    public static void onRevertDoubleSpacePeriod() {
+    }
+
+    public static void onRevertSwapPunctuation() {
+    }
+
+    public static void onFinishInputView() {
+    }
+
+    public static void onCreateInputView() {
+    }
+
+    public static void onStartInputView(int inputType, int displayOrientation, boolean restarting) {
+    }
+
+    public static void onAutoCorrection(final String typedWord, final String autoCorrectionWord,
+            final boolean isBatchInput, final DictionaryFacilitator dictionaryFacilitator,
+            final String prevWordsContext) {
+    }
+
+    public static void onWordCommitUserTyped(final String commitWord, final boolean isBatchMode) {
+    }
+
+    public static void onWordCommitAutoCorrect(final String commitWord, final boolean isBatchMode) {
+    }
+
+    public static void onWordCommitSuggestionPickedManually(
+            final String commitWord, final boolean isBatchMode) {
+    }
+
+    public static void onDoubleSpacePeriod() {
+    }
+
+    public static void onLoadSettings(SettingsValues settingsValues) {
+    }
+
+    public static void onInvalidWordIdentification(final String invalidWord) {
+    }
+
+    public static void onSubtypeChanged(final InputMethodSubtype oldSubtype,
+            final InputMethodSubtype newSubtype) {
+    }
+
+    public static void onSettingsActivity(final String entryPoint) {
+    }
+
+    public static void onInputConnectionLaggy(final int operation, final long duration) {
+    }
+
+    public static void onDecoderLaggy(final int operation, final long duration) {
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/utils/StatsUtilsManager.java b/java/src/com/android/inputmethod/latin/utils/StatsUtilsManager.java
new file mode 100644
index 0000000..cd42f50
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/utils/StatsUtilsManager.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+package com.android.inputmethod.latin.utils;
+
+import android.content.Context;
+
+import com.android.inputmethod.latin.DictionaryFacilitator;
+import com.android.inputmethod.latin.settings.SettingsValues;
+
+@SuppressWarnings("unused")
+public class StatsUtilsManager {
+
+    private static final StatsUtilsManager sInstance = new StatsUtilsManager();
+    private static StatsUtilsManager sTestInstance = null;
+
+    /**
+     * @return the singleton instance of {@link StatsUtilsManager}.
+     */
+    public static StatsUtilsManager getInstance() {
+        return sTestInstance != null ? sTestInstance : sInstance;
+    }
+
+    public static void setTestInstance(final StatsUtilsManager testInstance) {
+        sTestInstance = testInstance;
+    }
+
+    public void onCreate(final Context context, final DictionaryFacilitator dictionaryFacilitator) {
+    }
+
+    public void onLoadSettings(final Context context, final SettingsValues settingsValues) {
+    }
+
+    public void onStartInputView() {
+    }
+
+    public void onFinishInputView() {
+    }
+
+    public void onDestroy(final Context context) {
+    }
+}