@Before
  public void setup() {
    // ensure no bleedthrough from other tests
    TypeRegistry.init();
  }
Test of methods on HeapDataOutputStream

TODO right now this just tests the new write(ByteBuffer) method. We might want to add some unit
tests for the existing methods.
geode-core/src/test/java/org/apache/geode/internal/HeapDataOutputStreamJUnitTest.java