this.salt = new byte[SALT_SIZE];
        secureRandom.nextBytes(this.salt);

        // Derive master key from password
        this.masterKey = deriveKey(masterPassword, salt);

        // Clear the master password after use
        Arrays.fill(masterPassword, '\0');
    }

    /**
     * Initialize secure credential storage with existing salt and password
     *

 * bound. However, it would also let them create `new TypeParameter<@Nullable T>() {}`, which
 * wouldn't behave as users might expect. Additionally, it's not clear how the TypeToken API could
 * support even a "normal" `TypeParameter<T>` when `<T>` has a nullable bound. (See the discussion
 * on TypeToken.where.) So, in the interest of failing fast and encouraging the user to switch to a

    public boolean containsValue(@Nullable Object value) {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.containsValue(value);
    }

    @Override
    public void clear() {
      assertTrue(Thread.holdsLock(mutex));
      delegate.clear();
    }

    @Override
    public Collection<V> values() {
      assertTrue(Thread.holdsLock(mutex));
      /* TODO: verify that the Collection is also synchronized? */

                (queueSize.get() * 100.0 / MAX_BUFFERS));
    }

    /**
     * Clear all cached buffers (for testing or cleanup)
     */
    public static void clearCache() {
        bufferQueue.clear();
        queueSize.set(0);
    }

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 * #iterator()} method after the first, and whose iterator is always unmodifiable.
 *
 * <p>The {@code Iterable} specification does not make it absolutely clear what should happen on a
 * second invocation, so implementors have made various choices, including:
 *
 * <ul>
 *   <li>returning the same iterator again
 *   <li>throwing an exception of some kind

				err = msgp.WrapError(err, "TargetsMap")
				return
			}
			if z.TargetsMap == nil {
				z.TargetsMap = make(map[string]TargetReplicationResyncStatus, zb0002)
			} else if len(z.TargetsMap) > 0 {
				clear(z.TargetsMap)
			}
			for zb0002 > 0 {
				zb0002--
				var za0001 string
				za0001, err = dc.ReadString()
				if err != nil {
					err = msgp.WrapError(err, "TargetsMap")
					return
				}

            }
            helper.setProperty(bean, propertyName, valueType, element);
        }
    }

    /**
     * Clear all caches. Useful for testing or memory management.
     */
    public static void clearCaches() {
        EXPRESSION_CACHE.clear();
        EnhancedCompositeBeanHelper.clearCaches();
    }

    throw new UnsupportedOperationException();
  }

  @Override
  public void remove(Range<C> range) {
    throw new UnsupportedOperationException();
  }

  @Override
  public void clear() {
    remove(Range.all());
  }

  @Override
  public boolean enclosesAll(RangeSet<C> other) {
    return enclosesAll(other.asRanges());
  }

  @Override

  }

  @CanIgnoreReturnValue
  final @Nullable V remove(Object key) {
    checkNotNull(key);
    clearCache();
    return backingMap.remove(key);
  }

  final void clear() {
    clearCache();
    backingMap.clear();
  }

  @Nullable V get(Object key) {
    checkNotNull(key);
    V value = getIfCached(key);
    // TODO(b/192579700): Use a ternary once it no longer confuses our nullness checker.