}

    @LazyInit @CheckForNull private transient Set<K> keySet;

    @Override
    public Set<K> keySet() {
      Set<K> result = keySet;
      return (result == null) ? keySet = createKeySet() : result;
    }

    Set<K> createKeySet() {
      return new KeySet<>(this);
    }

    @LazyInit @CheckForNull private transient Collection<V> values;

boolean remove(Object); } org/codehaus/plexus/util/FastMap$KeySet$1.class package org.codehaus.plexus.util; synchronized class FastMap$KeySet$1 implements java.util.Iterator { FastMap$EntryImpl after; FastMap$EntryImpl before; void FastMap$KeySet$1(FastMap$KeySet); public void remove(); public boolean hasNext(); public Object next(); } org/codehaus/plexus/util/FastMap$KeySet.class package org.codehaus.plexus.util; synchronized class FastMap$KeySet extends java.util.AbstractSet { private void FastMap$KeySet(FastMap);...

    for (Object key : keys) {
      remove(key);
    }
  }

  @LazyInit @RetainedWith @CheckForNull Set<K> keySet;

  @Override
  public Set<K> keySet() {
    // does not impact recency ordering
    Set<K> ks = keySet;
    return (ks != null) ? ks : (keySet = new KeySet());
  }

  @LazyInit @RetainedWith @CheckForNull Collection<V> values;

  @Override

    map.put(three, four);
    Iterator<?> i = map.entrySet().iterator();
    i.next();
    i.remove();
    assertNotified(listener, three, four, RemovalCause.EXPLICIT);

    map.put(four, five);
    i = map.keySet().iterator();
    i.next();
    i.remove();
    assertNotified(listener, four, five, RemovalCause.EXPLICIT);

    map.put(five, six);
    i = map.values().iterator();
    i.next();
    i.remove();

    map.put(three, four);
    Iterator<?> i = map.entrySet().iterator();
    i.next();
    i.remove();
    assertNotified(listener, three, four, RemovalCause.EXPLICIT);

    map.put(four, five);
    i = map.keySet().iterator();
    i.next();
    i.remove();
    assertNotified(listener, four, five, RemovalCause.EXPLICIT);

    map.put(five, six);
    i = map.values().iterator();
    i.next();
    i.remove();

    for (Object key : keys) {
      remove(key);
    }
  }

  @LazyInit @RetainedWith @CheckForNull Set<K> keySet;

  @Override
  public Set<K> keySet() {
    // does not impact recency ordering
    Set<K> ks = keySet;
    return (ks != null) ? ks : (keySet = new KeySet());
  }

  @LazyInit @RetainedWith @CheckForNull Collection<V> values;

  @Override

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