val i: Iterator<String> = cache.urls()
    assertThat(i.hasNext()).isTrue()
    assertThat(i.next()).isEqualTo(urlA.toString())
    assertThat(i.hasNext()).isTrue()
    assertThat(i.next()).isEqualTo(urlB.toString())
    assertThat(i.hasNext()).isTrue()
    assertThat(i.next()).isEqualTo(urlC.toString())

    // ... and nothing else.
    assertThat(i.hasNext()).isFalse()
    assertFailsWith<NoSuchElementException> {

          final Iterator<Entry<K, V>> entryIterator) {
    return new UnmodifiableIterator<Entry<K, V>>() {
      @Override
      public boolean hasNext() {
        return entryIterator.hasNext();
      }

      @Override
      public Entry<K, V> next() {
        return unmodifiableEntry(entryIterator.next());
      }
    };
  }

      Random random = new Random();
      List<ReferenceEntry<Object, Object>> reads = new ArrayList<>();
      Iterator<ReferenceEntry<Object, Object>> i = readOrder.iterator();
      while (i.hasNext()) {
        ReferenceEntry<Object, Object> entry = i.next();
        if (random.nextBoolean()) {
          map.get(entry.getKey(), loader);
          reads.add(entry);
          i.remove();

      Random random = new Random();
      List<ReferenceEntry<Object, Object>> reads = new ArrayList<>();
      Iterator<ReferenceEntry<Object, Object>> i = readOrder.iterator();
      while (i.hasNext()) {
        ReferenceEntry<Object, Object> entry = i.next();
        if (random.nextBoolean()) {
          map.get(entry.getKey(), loader);
          reads.add(entry);
          i.remove();

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

            reportSetMap = new java.util.LinkedHashMap<String, ReportSet>();
            if (getReportSets() != null) {
                for (java.util.Iterator<ReportSet> i = getReportSets().iterator(); i.hasNext(); ) {
                    ReportSet reportSet = (ReportSet) i.next();
                    reportSetMap.put(reportSet.getId(), reportSet);
                }
            }
        }

          // Skip stale entry.
          return false;
        }
      } finally {
        currentSegment.postReadCleanup();
      }
    }

    @Override
    public boolean hasNext() {
      return nextExternal != null;
    }

    WriteThroughEntry nextEntry() {
      if (nextExternal == null) {
        throw new NoSuchElementException();
      }

          // Skip stale entry.
          return false;
        }
      } finally {
        currentSegment.postReadCleanup();
      }
    }

    @Override
    public boolean hasNext() {
      return nextExternal != null;
    }

    WriteThroughEntry nextEntry() {
      if (nextExternal == null) {
        throw new NoSuchElementException();
      }