@SuppressWarnings("unused") // for deserialization
    public void fromDataPre_GEODE_1_12_0_0(DataInput in)
        throws IOException, ClassNotFoundException {
      preMethodInvoked = true;
      fromData(in);
    }
Creates a new <code>DataSerializableImpl</code> whose contents is empty.
geode-core/src/test/java/org/apache/geode/internal/DataSerializableJUnitTest.java