boolean isOpDestroyEvent(InternalRegion r) {
    // Note that if the region is a proxy then we go ahead and distributed
    // the destroy because we can't eliminate it based on committed state
    return isOpDestroy()
        && (r.isProxy() || (getOriginalValue() != null && !Token.isRemoved(getOriginalValue())));
  }
@return the value, or null if the value does not exist in the cache, Token.INVALID or
        Token.LOCAL_INVALID if the value is invalid
geode-core/src/main/java/org/apache/geode/internal/cache/TXEntryState.java