private String setSystemProperty(final String property, final String value) {
    if (value == null) {
      return System.clearProperty(property);
    } else {
      return System.setProperty(property, value);
    }
  }
This test makes sure that we don't enforce the LOCAL_MAX_MEMORY setting when eviction is
enabled.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/PartitionedRegionLocalMaxMemoryDUnitTest.java