### Question:
Job implements Serializable { public Long getLastBuildNumber() { return lastBuildNumber; }  String getName(); Job setName(String name); String getDisplayName(); Job setDisplayName(String displayName); String getUrl(); Job setUrl(String url); Boolean getBuildable(); Job setBuildable(Boolean buildable); Boolean getInQueue(); Job setInQueue(Boolean inQueue); Long getNextBuildNumber(); Job setNextBuildNumber(Long nextBuildNumber); Long getLastBuildNumber(); Job setLastBuildNumber(Long lastBuildNumber);  }### Answer:
@Test public void lastBuildNumber_byDefault_isNull() { assertNull(job.getLastBuildNumber()); }