evictEntries(newEntry);
        return null;
      } finally {
        unlock();
        postWriteCleanup();
      }
    }

    /** Expands the table if possible. */
    @GuardedBy("this")
    void expand() {
      AtomicReferenceArray<ReferenceEntry<K, V>> oldTable = table;
      int oldCapacity = oldTable.length();
      if (oldCapacity >= MAXIMUM_CAPACITY) {
        return;

        evictEntries(newEntry);
        return null;
      } finally {
        unlock();
        postWriteCleanup();
      }
    }

    /** Expands the table if possible. */
    @GuardedBy("this")
    void expand() {
      AtomicReferenceArray<ReferenceEntry<K, V>> oldTable = table;
      int oldCapacity = oldTable.length();
      if (oldCapacity >= MAXIMUM_CAPACITY) {
        return;