@Override
    public void toData(DataOutput out) throws IOException {
      out.writeInt(start);
      out.writeInt(end);
    }
Tests the Heap Memory thresholds of {@link ResourceManager}

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