Android: Read file contents from Uri

read.java

public static byte[] readUri(Context context, Uri uri) throws IOException {
    ParcelFileDescriptor pdf = context.getContentResolver().openFileDescriptor(uri, "r");

    assert pdf != null;
    assert pdf.getStatSize() <= Integer.MAX_VALUE;
    byte[] data = new byte[(int) pdf.getStatSize()];

    FileDescriptor fd = pdf.getFileDescriptor();
    FileInputStream fileStream = new FileInputStream(fd);
    fileStream.read(data);

    return data;
}