Parcelable version of Android's SparseArray. Apache 2 licensed

ParcelableSparseArray.java

import android.content.Intent;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.SparseArray;

import junit.framework.TestCase;

public class ParcelableSparseArray
    extends SparseArray<Object>
    implements Parcelable {

    public static final Parcelable.Creator<ParcelableSparseArray> CREATOR = new Creator<ParcelableSparseArray>() {

        @Override
        public ParcelableSparseArray createFromParcel(Parcel source) {
            return new ParcelableSparseArray(source);
        }

        @Override
        public ParcelableSparseArray[] newArray(int size) {
            return new ParcelableSparseArray[size];
        }
    };
    private SparseArray<Object> _sparseArray;

    public ParcelableSparseArray() {
        super();
    }

    // -----------------------------------------------------------------------
    // Parcelable implementation

    private ParcelableSparseArray(Parcel in) {
        _sparseArray = in.readSparseArray(ParcelableSparseArray.class.getClassLoader());
    }

    public Object[] values() {
        Object[] values = new Object[size()];

        for (int i = 0; i < size(); i++) {
            values[i] = valueAt(i);
        }

        return values;
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel out, int _) {
        out.writeSparseArray(_sparseArray);
    }

    // -----------------------------------------------------------------------
    // Tests

    public class ParcelableSparseArrayTest
        extends TestCase {

        public static final String TEST_STRING = "Test String";
        public static final int TEST_INTEGER = 3;
        public static final Event TEST_EVENT = new Event();

        private ParcelableSparseArray _testSparserray;

        public void test_IsParcelable() {

            Bundle testBundle = new Bundler("testSparseArray", _testSparserray).build();

            Intent testIntent = new Intent("someAction");
            testIntent.putExtras(testBundle);

            ParcelableSparseArray testSource = testIntent.getParcelableExtra("testSparseArray");
            assertThat(testSource.get(1)).isEqualTo(TEST_STRING);
            assertThat(testSource.get(3)).isEqualTo(TEST_INTEGER);
            assertThat(testSource.get(5)).isEqualTo(TEST_EVENT);
        }

        public void test_ValuesReturnsObjectArray() {
            Object[] testObjectWithValues = _testSparserray.values();

            assertThat(testObjectWithValues.length).isEqualTo(3);
            assertThat(testObjectWithValues[0]).isEqualTo(TEST_STRING);
            assertThat(testObjectWithValues[1]).isEqualTo(TEST_INTEGER);
            assertThat(testObjectWithValues[2]).isEqualTo(TEST_EVENT);
        }

        @Override
        protected void setUp() throws Exception {
            super.setUp();

            _testSparserray = new ParcelableSparseArray();
            _testSparserray.put(1, TEST_STRING);
            _testSparserray.put(3, TEST_INTEGER);
            _testSparserray.put(5, TEST_EVENT);
        }
    }
}

it doesn't work

Haven't revisited this in sometime but are you folks saying the test also doesn't run successfully?