diff --git a/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeDrawingPoints.java b/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeDrawingPoints.java
index 7618682..7d09e9d 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeDrawingPoints.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeDrawingPoints.java
@@ -157,19 +157,19 @@
             for (int i = 1; i < segments; i++) {
                 final float t = i / (float)segments;
                 mInterpolator.interpolate(t);
-                eventTimes.add(d1, (int)(dt * t) + t1);
-                xCoords.add(d1, (int)mInterpolator.mInterpolatedX);
-                yCoords.add(d1, (int)mInterpolator.mInterpolatedY);
+                eventTimes.addAt(d1, (int)(dt * t) + t1);
+                xCoords.addAt(d1, (int)mInterpolator.mInterpolatedX);
+                yCoords.addAt(d1, (int)mInterpolator.mInterpolatedY);
                 if (GestureTrailDrawingPoints.DEBUG_SHOW_POINTS) {
-                    types.add(d1, GestureTrailDrawingPoints.POINT_TYPE_INTERPOLATED);
+                    types.addAt(d1, GestureTrailDrawingPoints.POINT_TYPE_INTERPOLATED);
                 }
                 d1++;
             }
-            eventTimes.add(d1, pt[p2]);
-            xCoords.add(d1, px[p2]);
-            yCoords.add(d1, py[p2]);
+            eventTimes.addAt(d1, pt[p2]);
+            xCoords.addAt(d1, px[p2]);
+            yCoords.addAt(d1, py[p2]);
             if (GestureTrailDrawingPoints.DEBUG_SHOW_POINTS) {
-                types.add(d1, GestureTrailDrawingPoints.POINT_TYPE_SAMPLED);
+                types.addAt(d1, GestureTrailDrawingPoints.POINT_TYPE_SAMPLED);
             }
         }
         return lastInterpolatedDrawIndex;
diff --git a/java/src/com/android/inputmethod/latin/InputPointers.java b/java/src/com/android/inputmethod/latin/InputPointers.java
index 2e638aa..c3bcf37 100644
--- a/java/src/com/android/inputmethod/latin/InputPointers.java
+++ b/java/src/com/android/inputmethod/latin/InputPointers.java
@@ -16,14 +16,16 @@
 
 package com.android.inputmethod.latin;
 
+import android.util.Log;
+
 import com.android.inputmethod.annotations.UsedForTesting;
 import com.android.inputmethod.latin.utils.ResizableIntArray;
 
-import android.util.Log;
-
 // TODO: This class is not thread-safe.
 public final class InputPointers {
     private static final String TAG = InputPointers.class.getSimpleName();
+    private static final boolean DEBUG_TIME = false;
+
     private final int mDefaultCapacity;
     private final ResizableIntArray mXCoordinates;
     private final ResizableIntArray mYCoordinates;
@@ -38,11 +40,29 @@
         mTimes = new ResizableIntArray(defaultCapacity);
     }
 
-    public void addPointer(int index, int x, int y, int pointerId, int time) {
-        mXCoordinates.add(index, x);
-        mYCoordinates.add(index, y);
-        mPointerIds.add(index, pointerId);
-        mTimes.add(index, time);
+    private void fillWithLastTimeUntil(final int index) {
+        final int fromIndex = mTimes.getLength();
+        // Fill the gap with the latest time.
+        // See {@link #getTime(int)} and {@link #isValidTimeStamps()}.
+        if (fromIndex <= 0) {
+            return;
+        }
+        final int fillLength = index - fromIndex + 1;
+        if (fillLength <= 0) {
+            return;
+        }
+        final int lastTime = mTimes.get(fromIndex - 1);
+        mTimes.fill(lastTime, fromIndex, fillLength);
+    }
+
+    public void addPointerAt(int index, int x, int y, int pointerId, int time) {
+        mXCoordinates.addAt(index, x);
+        mYCoordinates.addAt(index, y);
+        mPointerIds.addAt(index, pointerId);
+        if (LatinImeLogger.sDBG || DEBUG_TIME) {
+            fillWithLastTimeUntil(index);
+        }
+        mTimes.addAt(index, time);
     }
 
     @UsedForTesting
@@ -68,23 +88,6 @@
     }
 
     /**
-     * Append the pointers in the specified {@link InputPointers} to the end of this.
-     * @param src the source {@link InputPointers} to read the data from.
-     * @param startPos the starting index of the pointers in {@code src}.
-     * @param length the number of pointers to be appended.
-     */
-    @UsedForTesting
-    void append(InputPointers src, int startPos, int length) {
-        if (length == 0) {
-            return;
-        }
-        mXCoordinates.append(src.mXCoordinates, startPos, length);
-        mYCoordinates.append(src.mYCoordinates, startPos, length);
-        mPointerIds.append(src.mPointerIds, startPos, length);
-        mTimes.append(src.mTimes, startPos, length);
-    }
-
-    /**
      * Append the times, x-coordinates and y-coordinates in the specified {@link ResizableIntArray}
      * to the end of this.
      * @param pointerId the pointer id of the source.
@@ -141,7 +144,7 @@
     }
 
     public int[] getTimes() {
-        if (LatinImeLogger.sDBG) {
+        if (LatinImeLogger.sDBG || DEBUG_TIME) {
             if (!isValidTimeStamps()) {
                 throw new RuntimeException("Time stamps are invalid.");
             }
@@ -157,10 +160,11 @@
 
     private boolean isValidTimeStamps() {
         final int[] times = mTimes.getPrimitiveArray();
-        for (int i = 1; i < getPointerSize(); ++i) {
+        final int size = getPointerSize();
+        for (int i = 1; i < size; ++i) {
             if (times[i] < times[i - 1]) {
                 // dump
-                for (int j = 0; j < times.length; ++j) {
+                for (int j = 0; j < size; ++j) {
                     Log.d(TAG, "--- (" + j + ") " + times[j]);
                 }
                 return false;
diff --git a/java/src/com/android/inputmethod/latin/RichInputConnection.java b/java/src/com/android/inputmethod/latin/RichInputConnection.java
index 4d174dd..7cf64a3 100644
--- a/java/src/com/android/inputmethod/latin/RichInputConnection.java
+++ b/java/src/com/android/inputmethod/latin/RichInputConnection.java
@@ -685,6 +685,10 @@
                 && !settingsValues.isWordConnector(codePointBeforeCursor)) {
             return true;
         }
+        return isCursorFollowedByWordCharacter(settingsValues);
+    }
+
+    public boolean isCursorFollowedByWordCharacter(final SettingsValues settingsValues) {
         final CharSequence after = getTextAfterCursor(1, 0);
         if (!TextUtils.isEmpty(after) && !settingsValues.isWordSeparator(after.charAt(0))
                 && !settingsValues.isWordConnector(after.charAt(0))) {
diff --git a/java/src/com/android/inputmethod/latin/WordComposer.java b/java/src/com/android/inputmethod/latin/WordComposer.java
index f078c73..b4f2d1a 100644
--- a/java/src/com/android/inputmethod/latin/WordComposer.java
+++ b/java/src/com/android/inputmethod/latin/WordComposer.java
@@ -186,7 +186,7 @@
             // (See {@link #setBatchInputWord}).
             if (!mIsBatchMode) {
                 // TODO: Set correct pointer id and time
-                mInputPointers.addPointer(newIndex, keyX, keyY, 0, 0);
+                mInputPointers.addPointerAt(newIndex, keyX, keyY, 0, 0);
             }
         }
         mIsFirstCharCapitalized = isFirstCharCapitalized(
diff --git a/java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java b/java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java
index cc42d87..968129a 100644
--- a/java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java
+++ b/java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java
@@ -813,7 +813,8 @@
                 }
             }
             if (settingsValues.isSuggestionStripVisible()
-                    && settingsValues.mSpacingAndPunctuations.mCurrentLanguageHasSpaces) {
+                    && settingsValues.mSpacingAndPunctuations.mCurrentLanguageHasSpaces
+                    && !mConnection.isCursorFollowedByWordCharacter(settingsValues)) {
                 restartSuggestionsOnWordTouchedByCursor(settingsValues,
                         deleteCountAtStart - mDeleteCount /* offset */,
                         true /* includeResumedWordInSuggestions */, keyboardSwitcher);
@@ -1114,8 +1115,19 @@
                 keyboardSwitcher.getKeyboard());
         mWordComposer.setCursorPositionWithinWord(
                 typedWord.codePointCount(0, numberOfCharsInWordBeforeCursor));
-        mConnection.setComposingRegion(expectedCursorPosition - numberOfCharsInWordBeforeCursor,
+        // TODO: Change these lines to setComposingRegion(cursorPosition,
+        //         cursorPosition + range.getNumberOfCharsInWordAfterCursor());
+        if (0 != offset) {
+            // Backspace was pressed. We are at the end of a word, and we don't know the cursor
+            // position for sure, so use relative methods.
+            mConnection.deleteSurroundingText(numberOfCharsInWordBeforeCursor, 0);
+            mConnection.setComposingText(typedWord, 1);
+        } else {
+            // This is recorrection. The cursor position is reasonably reliable, and the cursor
+            // may be in the middle of a word so use setComposingRegion.
+            mConnection.setComposingRegion(expectedCursorPosition - numberOfCharsInWordBeforeCursor,
                 expectedCursorPosition + range.getNumberOfCharsInWordAfterCursor());
+        }
         if (suggestions.isEmpty()) {
             // We come here if there weren't any suggestion spans on this word. We will try to
             // compute suggestions for it instead.
diff --git a/java/src/com/android/inputmethod/latin/utils/ResizableIntArray.java b/java/src/com/android/inputmethod/latin/utils/ResizableIntArray.java
index 7c6fe93..64c9e2c 100644
--- a/java/src/com/android/inputmethod/latin/utils/ResizableIntArray.java
+++ b/java/src/com/android/inputmethod/latin/utils/ResizableIntArray.java
@@ -34,7 +34,7 @@
         throw new ArrayIndexOutOfBoundsException("length=" + mLength + "; index=" + index);
     }
 
-    public void add(final int index, final int val) {
+    public void addAt(final int index, final int val) {
         if (index < mLength) {
             mArray[index] = val;
         } else {
diff --git a/tests/src/com/android/inputmethod/latin/InputPointersTests.java b/tests/src/com/android/inputmethod/latin/InputPointersTests.java
index 5095f96..1a47cdd 100644
--- a/tests/src/com/android/inputmethod/latin/InputPointersTests.java
+++ b/tests/src/com/android/inputmethod/latin/InputPointersTests.java
@@ -55,14 +55,22 @@
         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
         final int limit = src.getXCoordinates().length * 2 + 10;
         for (int i = 0; i < limit; i++) {
-            src.addPointer(i, i * 2, i * 3, i * 4);
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointer(x, y, pointerId, time);
             assertEquals("size after add " + i, i + 1, src.getPointerSize());
         }
         for (int i = 0; i < limit; i++) {
-            assertEquals("xCoordinates at " + i, i, src.getXCoordinates()[i]);
-            assertEquals("yCoordinates at " + i, i * 2, src.getYCoordinates()[i]);
-            assertEquals("pointerIds at " + i, i * 3, src.getPointerIds()[i]);
-            assertEquals("times at " + i, i * 4, src.getTimes()[i]);
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            assertEquals("xCoordinates at " + i, x, src.getXCoordinates()[i]);
+            assertEquals("yCoordinates at " + i, y, src.getYCoordinates()[i]);
+            assertEquals("pointerIds at " + i, pointerId, src.getPointerIds()[i]);
+            assertEquals("times at " + i, time, src.getTimes()[i]);
         }
     }
 
@@ -70,14 +78,22 @@
         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
         final int limit = 1000, step = 100;
         for (int i = 0; i < limit; i += step) {
-            src.addPointer(i, i, i * 2, i * 3, i * 4);
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointerAt(i, x, y, pointerId, time);
             assertEquals("size after add at " + i, i + 1, src.getPointerSize());
         }
         for (int i = 0; i < limit; i += step) {
-            assertEquals("xCoordinates at " + i, i, src.getXCoordinates()[i]);
-            assertEquals("yCoordinates at " + i, i * 2, src.getYCoordinates()[i]);
-            assertEquals("pointerIds at " + i, i * 3, src.getPointerIds()[i]);
-            assertEquals("times at " + i, i * 4, src.getTimes()[i]);
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            assertEquals("xCoordinates at " + i, x, src.getXCoordinates()[i]);
+            assertEquals("yCoordinates at " + i, y, src.getYCoordinates()[i]);
+            assertEquals("pointerIds at " + i, pointerId, src.getPointerIds()[i]);
+            assertEquals("times at " + i, time, src.getTimes()[i]);
         }
     }
 
@@ -85,7 +101,11 @@
         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
         final int limit = src.getXCoordinates().length * 2 + 10;
         for (int i = 0; i < limit; i++) {
-            src.addPointer(i, i * 2, i * 3, i * 4);
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointer(x, y, pointerId, time);
         }
         final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
         dst.set(src);
@@ -100,7 +120,11 @@
         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
         final int limit = 100;
         for (int i = 0; i < limit; i++) {
-            src.addPointer(i, i * 2, i * 3, i * 4);
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointer(x, y, pointerId, time);
         }
         final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
         dst.copy(src);
@@ -121,106 +145,135 @@
     }
 
     public void testAppend() {
-        final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
-        final int srcLen = 100;
-        for (int i = 0; i < srcLen; i++) {
-            src.addPointer(i, i * 2, i * 3, i * 4);
-        }
-        final int dstLen = 50;
+        final int dstLength = 50;
         final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
-        for (int i = 0; i < dstLen; i++) {
-            final int value = -i - 1;
-            dst.addPointer(value * 4, value * 3, value * 2, value);
+        for (int i = 0; i < dstLength; i++) {
+            final int x = i * 4;
+            final int y = i * 3;
+            final int pointerId = i * 2;
+            final int time = i;
+            dst.addPointer(x, y, pointerId, time);
         }
         final InputPointers dstCopy = new InputPointers(DEFAULT_CAPACITY);
         dstCopy.copy(dst);
 
-        dst.append(src, 0, 0);
-        assertEquals("size after append zero", dstLen, dst.getPointerSize());
-        assertIntArrayEquals("xCoordinates after append zero",
-                dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLen);
-        assertIntArrayEquals("yCoordinates after append zero",
-                dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLen);
-        assertIntArrayEquals("pointerIds after append zero",
-                dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLen);
-        assertIntArrayEquals("times after append zero",
-                dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLen);
+        final ResizableIntArray srcXCoords = new ResizableIntArray(DEFAULT_CAPACITY);
+        final ResizableIntArray srcYCoords = new ResizableIntArray(DEFAULT_CAPACITY);
+        final ResizableIntArray srcPointerIds = new ResizableIntArray(DEFAULT_CAPACITY);
+        final ResizableIntArray srcTimes = new ResizableIntArray(DEFAULT_CAPACITY);
+        final int srcLength = 100;
+        final int srcPointerId = 10;
+        for (int i = 0; i < srcLength; i++) {
+            final int x = i;
+            final int y = i * 2;
+            // The time value must be larger than <code>dst</code>.
+            final int time = i * 4 + dstLength;
+            srcXCoords.add(x);
+            srcYCoords.add(y);
+            srcPointerIds.add(srcPointerId);
+            srcTimes.add(time);
+        }
 
-        dst.append(src, 0, srcLen);
-        assertEquals("size after append", dstLen + srcLen, dst.getPointerSize());
+        final int startPos = 0;
+        dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords,
+                startPos, 0 /* length */);
+        assertEquals("size after append zero", dstLength, dst.getPointerSize());
+        assertIntArrayEquals("xCoordinates after append zero",
+                dstCopy.getXCoordinates(), startPos, dst.getXCoordinates(), startPos, dstLength);
+        assertIntArrayEquals("yCoordinates after append zero",
+                dstCopy.getYCoordinates(), startPos, dst.getYCoordinates(), startPos, dstLength);
+        assertIntArrayEquals("pointerIds after append zero",
+                dstCopy.getPointerIds(), startPos, dst.getPointerIds(), startPos, dstLength);
+        assertIntArrayEquals("times after append zero",
+                dstCopy.getTimes(), startPos, dst.getTimes(), startPos, dstLength);
+
+        dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords,
+                startPos, srcLength);
+        assertEquals("size after append", dstLength + srcLength, dst.getPointerSize());
         assertTrue("primitive length after append",
-                dst.getPointerIds().length >= dstLen + srcLen);
+                dst.getPointerIds().length >= dstLength + srcLength);
         assertIntArrayEquals("original xCoordinates values after append",
-                dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLen);
+                dstCopy.getXCoordinates(), startPos, dst.getXCoordinates(), startPos, dstLength);
         assertIntArrayEquals("original yCoordinates values after append",
-                dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLen);
+                dstCopy.getYCoordinates(), startPos, dst.getYCoordinates(), startPos, dstLength);
         assertIntArrayEquals("original pointerIds values after append",
-                dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLen);
+                dstCopy.getPointerIds(), startPos, dst.getPointerIds(), startPos, dstLength);
         assertIntArrayEquals("original times values after append",
-                dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLen);
+                dstCopy.getTimes(), startPos, dst.getTimes(), startPos, dstLength);
         assertIntArrayEquals("appended xCoordinates values after append",
-                src.getXCoordinates(), 0, dst.getXCoordinates(), dstLen, srcLen);
+                srcXCoords.getPrimitiveArray(), startPos, dst.getXCoordinates(),
+                dstLength, srcLength);
         assertIntArrayEquals("appended yCoordinates values after append",
-                src.getYCoordinates(), 0, dst.getYCoordinates(), dstLen, srcLen);
+                srcYCoords.getPrimitiveArray(), startPos, dst.getYCoordinates(),
+                dstLength, srcLength);
         assertIntArrayEquals("appended pointerIds values after append",
-                src.getPointerIds(), 0, dst.getPointerIds(), dstLen, srcLen);
+                srcPointerIds.getPrimitiveArray(), startPos, dst.getPointerIds(),
+                dstLength, srcLength);
         assertIntArrayEquals("appended times values after append",
-                src.getTimes(), 0, dst.getTimes(), dstLen, srcLen);
+                srcTimes.getPrimitiveArray(), startPos, dst.getTimes(), dstLength, srcLength);
     }
 
     public void testAppendResizableIntArray() {
-        final int srcLen = 100;
+        final int dstLength = 50;
+        final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
+        for (int i = 0; i < dstLength; i++) {
+            final int x = i * 4;
+            final int y = i * 3;
+            final int pointerId = i * 2;
+            final int time = i;
+            dst.addPointer(x, y, pointerId, time);
+        }
+        final InputPointers dstCopy = new InputPointers(DEFAULT_CAPACITY);
+        dstCopy.copy(dst);
+
+        final int srcLength = 100;
         final int srcPointerId = 1;
-        final int[] srcPointerIds = new int[srcLen];
+        final int[] srcPointerIds = new int[srcLength];
         Arrays.fill(srcPointerIds, srcPointerId);
         final ResizableIntArray srcTimes = new ResizableIntArray(DEFAULT_CAPACITY);
         final ResizableIntArray srcXCoords = new ResizableIntArray(DEFAULT_CAPACITY);
         final ResizableIntArray srcYCoords= new ResizableIntArray(DEFAULT_CAPACITY);
-        for (int i = 0; i < srcLen; i++) {
-            srcTimes.add(i * 2);
-            srcXCoords.add(i * 3);
-            srcYCoords.add(i * 4);
+        for (int i = 0; i < srcLength; i++) {
+            // The time value must be larger than <code>dst</code>.
+            final int time = i * 2 + dstLength;
+            final int x = i * 3;
+            final int y = i * 4;
+            srcTimes.add(time);
+            srcXCoords.add(x);
+            srcYCoords.add(y);
         }
-        final int dstLen = 50;
-        final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
-        for (int i = 0; i < dstLen; i++) {
-            final int value = -i - 1;
-            dst.addPointer(value * 4, value * 3, value * 2, value);
-        }
-        final InputPointers dstCopy = new InputPointers(DEFAULT_CAPACITY);
-        dstCopy.copy(dst);
 
         dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords, 0, 0);
-        assertEquals("size after append zero", dstLen, dst.getPointerSize());
+        assertEquals("size after append zero", dstLength, dst.getPointerSize());
         assertIntArrayEquals("xCoordinates after append zero",
-                dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLen);
+                dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLength);
         assertIntArrayEquals("yCoordinates after append zero",
-                dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLen);
+                dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLength);
         assertIntArrayEquals("pointerIds after append zero",
-                dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLen);
+                dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLength);
         assertIntArrayEquals("times after append zero",
-                dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLen);
+                dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLength);
 
-        dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords, 0, srcLen);
-        assertEquals("size after append", dstLen + srcLen, dst.getPointerSize());
+        dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords, 0, srcLength);
+        assertEquals("size after append", dstLength + srcLength, dst.getPointerSize());
         assertTrue("primitive length after append",
-                dst.getPointerIds().length >= dstLen + srcLen);
+                dst.getPointerIds().length >= dstLength + srcLength);
         assertIntArrayEquals("original xCoordinates values after append",
-                dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLen);
+                dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLength);
         assertIntArrayEquals("original yCoordinates values after append",
-                dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLen);
+                dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLength);
         assertIntArrayEquals("original pointerIds values after append",
-                dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLen);
+                dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLength);
         assertIntArrayEquals("original times values after append",
-                dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLen);
+                dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLength);
         assertIntArrayEquals("appended xCoordinates values after append",
-                srcXCoords.getPrimitiveArray(), 0, dst.getXCoordinates(), dstLen, srcLen);
+                srcXCoords.getPrimitiveArray(), 0, dst.getXCoordinates(), dstLength, srcLength);
         assertIntArrayEquals("appended yCoordinates values after append",
-                srcYCoords.getPrimitiveArray(), 0, dst.getYCoordinates(), dstLen, srcLen);
+                srcYCoords.getPrimitiveArray(), 0, dst.getYCoordinates(), dstLength, srcLength);
         assertIntArrayEquals("appended pointerIds values after append",
-                srcPointerIds, 0, dst.getPointerIds(), dstLen, srcLen);
+                srcPointerIds, 0, dst.getPointerIds(), dstLength, srcLength);
         assertIntArrayEquals("appended times values after append",
-                srcTimes.getPrimitiveArray(), 0, dst.getTimes(), dstLen, srcLen);
+                srcTimes.getPrimitiveArray(), 0, dst.getTimes(), dstLength, srcLength);
     }
 
     // TODO: Consolidate this method with
@@ -250,14 +303,24 @@
         final int limit = 100;
         final int shiftAmount = 20;
         for (int i = 0; i < limit; i++) {
-            src.addPointer(i, i * 2, i * 3, i * 4);
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointer(x, y, pointerId, time);
         }
         src.shift(shiftAmount);
+        assertEquals("length after shift", src.getPointerSize(), limit - shiftAmount);
         for (int i = 0; i < limit - shiftAmount; ++i) {
-            assertEquals("xCoordinates at " + i, i + shiftAmount, src.getXCoordinates()[i]);
-            assertEquals("yCoordinates at " + i, (i + shiftAmount) * 2, src.getYCoordinates()[i]);
-            assertEquals("pointerIds at " + i, (i + shiftAmount) * 3, src.getPointerIds()[i]);
-            assertEquals("times at " + i, (i + shiftAmount) * 4, src.getTimes()[i]);
+            final int oldIndex = i + shiftAmount;
+            final int x = oldIndex;
+            final int y = oldIndex * 2;
+            final int pointerId = oldIndex * 3;
+            final int time = oldIndex * 4;
+            assertEquals("xCoordinates at " + i, x, src.getXCoordinates()[i]);
+            assertEquals("yCoordinates at " + i, y, src.getYCoordinates()[i]);
+            assertEquals("pointerIds at " + i, pointerId, src.getPointerIds()[i]);
+            assertEquals("times at " + i, time, src.getTimes()[i]);
         }
     }
 }
diff --git a/tests/src/com/android/inputmethod/latin/utils/ResizableIntArrayTests.java b/tests/src/com/android/inputmethod/latin/utils/ResizableIntArrayTests.java
index cad80d5..8f58e68 100644
--- a/tests/src/com/android/inputmethod/latin/utils/ResizableIntArrayTests.java
+++ b/tests/src/com/android/inputmethod/latin/utils/ResizableIntArrayTests.java
@@ -39,7 +39,8 @@
         int[] array2 = null, array3 = null;
         final int limit = DEFAULT_CAPACITY * 2 + 10;
         for (int i = 0; i < limit; i++) {
-            src.add(i);
+            final int value = i;
+            src.add(value);
             assertEquals("length after add " + i, i + 1, src.getLength());
             if (i == DEFAULT_CAPACITY) {
                 array2 = src.getPrimitiveArray();
@@ -56,7 +57,8 @@
             }
         }
         for (int i = 0; i < limit; i++) {
-            assertEquals("value at " + i, i, src.get(i));
+            final int value = i;
+            assertEquals("value at " + i, value, src.get(i));
         }
     }
 
@@ -64,11 +66,13 @@
         final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
         final int limit = DEFAULT_CAPACITY * 10, step = DEFAULT_CAPACITY * 2;
         for (int i = 0; i < limit; i += step) {
-            src.add(i, i);
+            final int value = i;
+            src.addAt(i, value);
             assertEquals("length after add at " + i, i + 1, src.getLength());
         }
         for (int i = 0; i < limit; i += step) {
-            assertEquals("value at " + i, i, src.get(i));
+            final int value = i;
+            assertEquals("value at " + i, value, src.get(i));
         }
     }
 
@@ -88,9 +92,10 @@
         }
 
         final int index = DEFAULT_CAPACITY / 2;
-        src.add(index, 100);
+        final int valueAddAt = 100;
+        src.addAt(index, valueAddAt);
         assertEquals("legth after add at " + index, index + 1, src.getLength());
-        assertEquals("value after add at " + index, 100, src.get(index));
+        assertEquals("value after add at " + index, valueAddAt, src.get(index));
         assertEquals("value after add at 0", 0, src.get(0));
         try {
             final int value = src.get(src.getLength());
@@ -104,7 +109,8 @@
         final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
         final int[] array = src.getPrimitiveArray();
         for (int i = 0; i < DEFAULT_CAPACITY; i++) {
-            src.add(i);
+            final int value = i;
+            src.add(value);
             assertEquals("length after add " + i, i + 1, src.getLength());
         }
 
@@ -116,7 +122,8 @@
 
         int[] array3 = null;
         for (int i = 0; i < DEFAULT_CAPACITY; i++) {
-            src.add(i);
+            final int value = i;
+            src.add(value);
             assertEquals("length after add " + i, i + 1, src.getLength());
             if (i == smallerLength) {
                 array3 = src.getPrimitiveArray();
@@ -133,7 +140,8 @@
         final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
         final int[] array = src.getPrimitiveArray();
         for (int i = 0; i < DEFAULT_CAPACITY; i++) {
-            src.add(i);
+            final int value = i;
+            src.add(value);
             assertEquals("length after add " + i, i + 1, src.getLength());
         }
 
@@ -144,11 +152,11 @@
         assertNotSame("array after larger setLength", array, array2);
         assertEquals("array length after larger setLength", largerLength, array2.length);
         for (int i = 0; i < largerLength; i++) {
-            final int v = src.get(i);
+            final int value = i;
             if (i < DEFAULT_CAPACITY) {
-                assertEquals("value at " + i, i, v);
+                assertEquals("value at " + i, value, src.get(i));
             } else {
-                assertEquals("value at " + i, 0, v);
+                assertEquals("value at " + i, 0, src.get(i));
             }
         }
 
@@ -159,7 +167,8 @@
         assertSame("array after smaller setLength", array2, array3);
         assertEquals("array length after smaller setLength", largerLength, array3.length);
         for (int i = 0; i < smallerLength; i++) {
-            assertEquals("value at " + i, i, src.get(i));
+            final int value = i;
+            assertEquals("value at " + i, value, src.get(i));
         }
     }
 
@@ -167,7 +176,8 @@
         final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
         final int limit = DEFAULT_CAPACITY * 2 + 10;
         for (int i = 0; i < limit; i++) {
-            src.add(i);
+            final int value = i;
+            src.add(value);
         }
 
         final ResizableIntArray dst = new ResizableIntArray(DEFAULT_CAPACITY);
@@ -179,7 +189,8 @@
     public void testCopy() {
         final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
         for (int i = 0; i < DEFAULT_CAPACITY; i++) {
-            src.add(i);
+            final int value =  i;
+            src.add(value);
         }
 
         final ResizableIntArray dst = new ResizableIntArray(DEFAULT_CAPACITY);
@@ -204,119 +215,126 @@
     }
 
     public void testAppend() {
-        final int srcLen = DEFAULT_CAPACITY;
-        final ResizableIntArray src = new ResizableIntArray(srcLen);
-        for (int i = 0; i < srcLen; i++) {
-            src.add(i);
+        final int srcLength = DEFAULT_CAPACITY;
+        final ResizableIntArray src = new ResizableIntArray(srcLength);
+        for (int i = 0; i < srcLength; i++) {
+            final int value = i;
+            src.add(value);
         }
         final ResizableIntArray dst = new ResizableIntArray(DEFAULT_CAPACITY * 2);
         final int[] array = dst.getPrimitiveArray();
-        final int dstLen = DEFAULT_CAPACITY / 2;
-        for (int i = 0; i < dstLen; i++) {
+        final int dstLength = DEFAULT_CAPACITY / 2;
+        for (int i = 0; i < dstLength; i++) {
             final int value = -i - 1;
             dst.add(value);
         }
         final ResizableIntArray dstCopy = new ResizableIntArray(dst.getLength());
         dstCopy.copy(dst);
 
-        dst.append(src, 0, 0);
-        assertEquals("length after append zero", dstLen, dst.getLength());
+        final int startPos = 0;
+        dst.append(src, startPos, 0 /* length */);
+        assertEquals("length after append zero", dstLength, dst.getLength());
         assertSame("array after append zero", array, dst.getPrimitiveArray());
-        assertIntArrayEquals("values after append zero",
-                dstCopy.getPrimitiveArray(), 0, dst.getPrimitiveArray(), 0, dstLen);
+        assertIntArrayEquals("values after append zero", dstCopy.getPrimitiveArray(), startPos,
+                dst.getPrimitiveArray(), startPos, dstLength);
 
-        dst.append(src, 0, srcLen);
-        assertEquals("length after append", dstLen + srcLen, dst.getLength());
+        dst.append(src, startPos, srcLength);
+        assertEquals("length after append", dstLength + srcLength, dst.getLength());
         assertSame("array after append", array, dst.getPrimitiveArray());
         assertTrue("primitive length after append",
-                dst.getPrimitiveArray().length >= dstLen + srcLen);
-        assertIntArrayEquals("original values after append",
-                dstCopy.getPrimitiveArray(), 0, dst.getPrimitiveArray(), 0, dstLen);
-        assertIntArrayEquals("appended values after append",
-                src.getPrimitiveArray(), 0, dst.getPrimitiveArray(), dstLen, srcLen);
+                dst.getPrimitiveArray().length >= dstLength + srcLength);
+        assertIntArrayEquals("original values after append", dstCopy.getPrimitiveArray(), startPos,
+                dst.getPrimitiveArray(), startPos, dstLength);
+        assertIntArrayEquals("appended values after append", src.getPrimitiveArray(), startPos,
+                dst.getPrimitiveArray(), dstLength, srcLength);
 
-        dst.append(src, 0, srcLen);
-        assertEquals("length after 2nd append", dstLen + srcLen * 2, dst.getLength());
+        dst.append(src, startPos, srcLength);
+        assertEquals("length after 2nd append", dstLength + srcLength * 2, dst.getLength());
         assertNotSame("array after 2nd append", array, dst.getPrimitiveArray());
         assertTrue("primitive length after 2nd append",
-                dst.getPrimitiveArray().length >= dstLen + srcLen * 2);
+                dst.getPrimitiveArray().length >= dstLength + srcLength * 2);
         assertIntArrayEquals("original values after 2nd append",
-                dstCopy.getPrimitiveArray(), 0, dst.getPrimitiveArray(), 0, dstLen);
+                dstCopy.getPrimitiveArray(), startPos, dst.getPrimitiveArray(), startPos,
+                dstLength);
         assertIntArrayEquals("appended values after 2nd append",
-                src.getPrimitiveArray(), 0, dst.getPrimitiveArray(), dstLen, srcLen);
+                src.getPrimitiveArray(), startPos, dst.getPrimitiveArray(), dstLength,
+                srcLength);
         assertIntArrayEquals("appended values after 2nd append",
-                src.getPrimitiveArray(), 0, dst.getPrimitiveArray(), dstLen + srcLen, srcLen);
+                src.getPrimitiveArray(), startPos, dst.getPrimitiveArray(), dstLength + srcLength,
+                srcLength);
     }
 
     public void testFill() {
-        final int srcLen = DEFAULT_CAPACITY;
-        final ResizableIntArray src = new ResizableIntArray(srcLen);
-        for (int i = 0; i < srcLen; i++) {
-            src.add(i);
+        final int srcLength = DEFAULT_CAPACITY;
+        final ResizableIntArray src = new ResizableIntArray(srcLength);
+        for (int i = 0; i < srcLength; i++) {
+            final int value = i;
+            src.add(value);
         }
         final int[] array = src.getPrimitiveArray();
 
-        final int startPos = srcLen / 3;
-        final int length = srcLen / 3;
+        final int startPos = srcLength / 3;
+        final int length = srcLength / 3;
         final int endPos = startPos + length;
         assertTrue(startPos >= 1);
-        final int value = 123;
+        final int fillValue = 123;
         try {
-            src.fill(value, -1, length);
+            src.fill(fillValue, -1 /* startPos */, length);
             fail("fill from -1 shouldn't succeed");
         } catch (IllegalArgumentException e) {
             // success
         }
         try {
-            src.fill(value, startPos, -1);
+            src.fill(fillValue, startPos, -1 /* length */);
             fail("fill negative length shouldn't succeed");
         } catch (IllegalArgumentException e) {
             // success
         }
 
-        src.fill(value, startPos, length);
-        assertEquals("length after fill", srcLen, src.getLength());
+        src.fill(fillValue, startPos, length);
+        assertEquals("length after fill", srcLength, src.getLength());
         assertSame("array after fill", array, src.getPrimitiveArray());
-        for (int i = 0; i < srcLen; i++) {
-            final int v = src.get(i);
+        for (int i = 0; i < srcLength; i++) {
+            final int value = i;
             if (i >= startPos && i < endPos) {
-                assertEquals("new values after fill at " + i, value, v);
+                assertEquals("new values after fill at " + i, fillValue, src.get(i));
             } else {
-                assertEquals("unmodified values after fill at " + i, i, v);
+                assertEquals("unmodified values after fill at " + i, value, src.get(i));
             }
         }
 
-        final int length2 = srcLen * 2 - startPos;
+        final int length2 = srcLength * 2 - startPos;
         final int largeEnd = startPos + length2;
-        assertTrue(largeEnd > srcLen);
-        final int value2 = 456;
-        src.fill(value2, startPos, length2);
+        assertTrue(largeEnd > srcLength);
+        final int fillValue2 = 456;
+        src.fill(fillValue2, startPos, length2);
         assertEquals("length after large fill", largeEnd, src.getLength());
         assertNotSame("array after large fill", array, src.getPrimitiveArray());
         for (int i = 0; i < largeEnd; i++) {
-            final int v = src.get(i);
+            final int value = i;
             if (i >= startPos && i < largeEnd) {
-                assertEquals("new values after large fill at " + i, value2, v);
+                assertEquals("new values after large fill at " + i, fillValue2, src.get(i));
             } else {
-                assertEquals("unmodified values after large fill at " + i, i, v);
+                assertEquals("unmodified values after large fill at " + i, value, src.get(i));
             }
         }
 
         final int startPos2 = largeEnd + length2;
         final int endPos2 = startPos2 + length2;
-        final int value3 = 789;
-        src.fill(value3, startPos2, length2);
+        final int fillValue3 = 789;
+        src.fill(fillValue3, startPos2, length2);
         assertEquals("length after disjoint fill", endPos2, src.getLength());
         for (int i = 0; i < endPos2; i++) {
-            final int v = src.get(i);
+            final int value = i;
             if (i >= startPos2 && i < endPos2) {
-                assertEquals("new values after disjoint fill at " + i, value3, v);
+                assertEquals("new values after disjoint fill at " + i, fillValue3, src.get(i));
             } else if (i >= startPos && i < largeEnd) {
-                assertEquals("unmodified values after disjoint fill at " + i, value2, v);
+                assertEquals("unmodified values after disjoint fill at " + i,
+                        fillValue2, src.get(i));
             } else if (i < startPos) {
-                assertEquals("unmodified values after disjoint fill at " + i, i, v);
+                assertEquals("unmodified values after disjoint fill at " + i, value, src.get(i));
             } else {
-                assertEquals("gap values after disjoint fill at " + i, 0, v);
+                assertEquals("gap values after disjoint fill at " + i, 0, src.get(i));
             }
         }
     }
@@ -346,12 +364,14 @@
         final int limit = DEFAULT_CAPACITY * 10;
         final int shiftAmount = 20;
         for (int i = 0; i < limit; ++i) {
-            src.add(i, i);
+            final int value = i;
+            src.addAt(i, value);
             assertEquals("length after add at " + i, i + 1, src.getLength());
         }
         src.shift(shiftAmount);
         for (int i = 0; i < limit - shiftAmount; ++i) {
-            assertEquals("value at " + i, i + shiftAmount, src.get(i));
+            final int oldValue = i + shiftAmount;
+            assertEquals("value at " + i, oldValue, src.get(i));
         }
     }
 }