diff --git a/tools/dicttool/Android.mk b/tools/dicttool/Android.mk
index 426e441..7832c14 100644
--- a/tools/dicttool/Android.mk
+++ b/tools/dicttool/Android.mk
@@ -17,7 +17,6 @@
 include $(CLEAR_VARS)
 
 BUILD_TOP := ../../../../..
-FRAMEWORK_TOP := $(BUILD_TOP)/frameworks/base/core/java
 LATINIME_DIR := $(BUILD_TOP)/packages/inputmethods/LatinIME
 LATINIME_BASE_SOURCE_DIRECTORY := $(LATINIME_DIR)/java/src/com/android/inputmethod
 LATINIME_CORE_SOURCE_DIRECTORY := $(LATINIME_BASE_SOURCE_DIRECTORY)/latin
@@ -28,9 +27,6 @@
         $(LATINIME_DIR)/tests/src/com/android/inputmethod/latin/makedict/
 
 USED_TARGETTED_UTILS := \
-        $(FRAMEWORK_TOP)/android/util/ContainerHelpers.java \
-        $(FRAMEWORK_TOP)/android/util/SparseArray.java \
-        $(FRAMEWORK_TOP)/com/android/internal/util/ArrayUtils.java \
         $(LATINIME_CORE_SOURCE_DIRECTORY)/ByteArrayWrapper.java \
         $(LATINIME_CORE_SOURCE_DIRECTORY)/utils/CollectionUtils.java
 
diff --git a/tools/dicttool/compat/android/util/SparseArray.java b/tools/dicttool/compat/android/util/SparseArray.java
new file mode 100644
index 0000000..6c76f19
--- /dev/null
+++ b/tools/dicttool/compat/android/util/SparseArray.java
@@ -0,0 +1,84 @@
+/*
+ * 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 android.util;
+
+import com.android.inputmethod.latin.utils.CollectionUtils;
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+public class SparseArray<E> {
+    private final ArrayList<Integer> mKeys;
+    private final ArrayList<E> mValues;
+
+    public SparseArray() {
+        this(10);
+    }
+
+    public SparseArray(final int initialCapacity) {
+        mKeys = CollectionUtils.newArrayList(initialCapacity);
+        mValues = CollectionUtils.newArrayList(initialCapacity);
+    }
+
+    public int size() {
+        return mKeys.size();
+    }
+
+    public void clear() {
+        mKeys.clear();
+        mValues.clear();
+    }
+
+    public void put(final int key, final E value) {
+        final int index = Collections.binarySearch(mKeys, key);
+        if (index >= 0) {
+            mValues.set(index, value);
+            return;
+        }
+        final int insertIndex = ~index;
+        mKeys.add(insertIndex, key);
+        mValues.add(insertIndex, value);
+    }
+
+    public E get(final int key) {
+        return get(key, null);
+    }
+
+    public E get(final int key, final E valueIfKeyNotFound) {
+        final int index = Collections.binarySearch(mKeys, key);
+        if (index >= 0) {
+            return mValues.get(index);
+        }
+        return valueIfKeyNotFound;
+    }
+
+    public int indexOfKey(final int key) {
+        return mKeys.indexOf(key);
+    }
+
+    public int indexOfValue(final E value) {
+        return mValues.indexOf(value);
+    }
+
+    public int keyAt(final int index) {
+        return mKeys.get(index);
+    }
+
+    public E valueAt(final int index) {
+        return mValues.get(index);
+    }
+}