Method remove

corpus/java/training/guava/cache/LocalCache.java:3123–3168

(Object key, int hash)

    }

    @Nullable
    V remove(Object key, int hash) {
      lock();
      try {
        long now = map.ticker.read();
        preWriteCleanup(now);

        int newCount = this.count - 1;
        AtomicReferenceArray<ReferenceEntry<K, V>> table = this.table;
        int index = hash & (table.length() - 1);
        ReferenceEntry<K, V> first = table.get(index);

        for (ReferenceEntry<K, V> e = first; e != null; e = e.getNext()) {
          K entryKey = e.getKey();
          if (e.getHash() == hash
              && entryKey != null
              && map.keyEquivalence.equivalent(key, entryKey)) {
            ValueReference<K, V> valueReference = e.getValueReference();
            V entryValue = valueReference.get();

            RemovalCause cause;
            if (entryValue != null) {
              cause = RemovalCause.EXPLICIT;
            } else if (valueReference.isActive()) {
              cause = RemovalCause.COLLECTED;
            } else {
              // currently loading
              return null;
            }

            ++modCount;
            ReferenceEntry<K, V> newFirst =
                removeValueFromChain(first, e, entryKey, hash, entryValue, valueReference, cause);
            newCount = this.count - 1;
            table.set(index, newFirst);
            this.count = newCount; // write-volatile
            return entryValue;
          }
        }

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

    boolean storeLoadedValue(
        K key, int hash, LoadingValueReference<K, V> oldValueReference, V newValue) {