I was unable to find any issue or discussion related to what I described below and so decided to create a ticket.

After change 73e382fa877f80994817a136b0adcc4365ccd904 `LocalCache` implements its own versions of methods like `computeIfAbsent` and `computeIfPresent`. These replace previous implementations inherited from `ConcurrentMap` with ones that delegate to unconditional call to `compute` with customised lambda e.g. `computeIfAbsent`:

```java
 return ((v = get(key)) == null &&
                (newValue = mappingFunction.apply(key)) != null &&
                (v = putIfAbsent(key, newValue)) == null) ? newValue : v;
```
becomes:

```java
compute(key, (k, oldValue) -> (oldValue == null) ? function.apply(key) : oldValue);
```

This has side effect that even if value is already present it is replaced by itself which confuses removal listener that will report value being removed with `RemovalCause.REPLACED`. Stats are possibly also incorrect (not used them to date so I am not sure).

Below test case reproduces this behaviour.

```java
List<RemovalNotification> notifications = new ArrayList<>();

Cache<Integer, Integer> cache = CacheBuilder.<Integer, Integer>newBuilder()
        .removalListener((RemovalListener<Integer, Integer>) notifications::add)
        .recordStats()
        .build();

cache.asMap().computeIfAbsent(1, integer -> integer + 1);
cache.asMap().computeIfAbsent(1, integer -> integer + 1);

assert notifications.size() == 1;
assert notifications.get(0).getCause() == RemovalCause.REPLACED;
assert cache.stats().evictionCount() == 0;
assert cache.stats().loadCount() == 2;
```
new com.google.common.base.Function<V, V>() {
              @Override
              public V apply(V newValue) {
                LoadingValueReference.this.set(newValue);
                return newValue;
              }
            },
            directExecutor());
      } catch (Throwable t) {
        ListenableFuture<V> result = setException(t) ? futureValue : fullyFailedFuture(t);
        if (t instanceof InterruptedException) {
          Thread.currentThread().interrupt();
        }
        return result;
      }
    }
    public V compute(K key, BiFunction<? super K, ? super V, ? extends V> function) {
      stopwatch.start();
      V previousValue;
      try {
        previousValue = oldValue.waitForValue();
      } catch (ExecutionException e) {
        previousValue = null;
      }
      V newValue = function.apply(key, previousValue);
      this.set(newValue);
      return newValue;
    }
    public long elapsedNanos() {
      return stopwatch.elapsed(NANOSECONDS);