@Override
    public void fromData(DataInput in) throws IOException, ClassNotFoundException {
      start = in.readInt();
      end = in.readInt();
    }
Tests the Heap Memory thresholds of {@link ResourceManager}

@since GemFire 6.0
geode-core/src/distributedTest/java/org/apache/geode/cache/management/MemoryThresholdsDUnitTest.java