### Question:
Element implements Serializable, Cloneable { boolean hasId() { return id != NOT_SET_ID; } Element(final Serializable key, final Serializable value, final long version);  Element(final Object key, final Object value, final long version); @Deprecated  Element(final Object key, final Object value, final long version,
                   final long creationTime, final long lastAccessTime, final long nextToLastAccessTime,
                   final long lastUpdateTime, final long hitCount);  Element(final Object key, final Object value, final long version,
                   final long creationTime, final long lastAccessTime,
                   final long lastUpdateTime, final long hitCount);  Element(final Object key, final Object value, final long version, final long creationTime,
            final long lastAccessTime, final long hitCount, final boolean cacheDefaultLifespan,
            final int timeToLive, final int timeToIdle, final long lastUpdateTime);  Element(final Object key, final Object value,
                   final int timeToIdleSeconds, final int timeToLiveSeconds);  Element(final Object key, final Object value, final boolean eternal); @Deprecated  Element(final Object key, final Object value,
                   final Boolean eternal, final Integer timeToIdleSeconds, final Integer timeToLiveSeconds);  Element(final Serializable key, final Serializable value);  Element(final Object key, final Object value); @Deprecated final Serializable getKey(); final Object getObjectKey(); @Deprecated final Serializable getValue(); final Object getObjectValue(); @Override final boolean equals(final Object object); void setTimeToLive(final int timeToLiveSeconds); void setTimeToIdle(final int timeToIdleSeconds); @Override final int hashCode(); final void setVersion(final long version); @Deprecated final void setCreateTime(); final long getCreationTime(); final long getLatestOfCreationAndUpdateTime(); final long getVersion(); final long getLastAccessTime(); @Deprecated final long getNextToLastAccessTime(); final long getHitCount(); final void resetAccessStatistics(); final void updateAccessStatistics(); final void updateUpdateStatistics(); @Override final String toString(); @Override final Object clone(); final long getSerializedSize(); final boolean isSerializable(); final boolean isKeySerializable(); long getLastUpdateTime(); boolean isExpired(); boolean isExpired(CacheConfiguration config); long getExpirationTime(); boolean isEternal(); void setEternal(final boolean eternal); boolean isLifespanSet(); int getTimeToLive(); int getTimeToIdle(); boolean usesCacheDefaultLifespan();  }### Answer:
@Test public void testIdNotSetByDefault() { Element e = new Element("foo", "bar"); assertThat(e.hasId(), is(false)); }