public void setLastModified(long lastModified) {
    setLastModifiedAndAccessedTimes(lastModified, lastModified);
  }
This sets the lastModified time for the entry. In subclasses with statistics it will also set
the lastAccessed time unless the system property gemfire.disableAccessTimeUpdateOnPut is set to
true.

@param lastModified the time of last modification of the entry
geode-core/src/main/java/org/apache/geode/internal/cache/entries/AbstractRegionEntry.java