CalendarIntervalTriggerImpl throws NPE when IntervalUnit is MILLISECOND

[thrykol]

Version: Quartz 2.3.2

time.getTime() throws a NPE inside CalendarIntervalTriggerImpl#getFireTimeAfter when using IntervalUnit.MILLISECOND. The code is assuming that the minimum unit is SECOND.

java.lang.NullPointerException: Cannot invoke "java.util.Date.getTime()" because "time" is null
	at org.quartz.impl.triggers.CalendarIntervalTriggerImpl.getFireTimeAfter(CalendarIntervalTriggerImpl.java:844)
	at org.quartz.impl.triggers.CalendarIntervalTriggerImpl.getFireTimeAfter(CalendarIntervalTriggerImpl.java:675)
	at org.quartz.impl.triggers.CalendarIntervalTriggerImpl.triggered(CalendarIntervalTriggerImpl.java:513)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.triggerFired(JobStoreSupport.java:3069)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$44.execute(JobStoreSupport.java:2985)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$44.execute(JobStoreSupport.java:2978)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3864)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.triggersFired(JobStoreSupport.java:2977)
	at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:353)