Is it possible to change the current time of a stream or jvm instance in java?

Question

I want to test some methods of the class that contain logic depending on the current time of its launch. I would like to set the / jvm / system stream time to a specific future date in JUnit setup and run my tests. Also I would like it to be temporary. Has anyone done this before?

I was thinking of something like TimeZone.setDefault (timezone)

Answer 1

You can use AspectJ and roundabout methods java.lang.System.currentTimeMillis(), java.util.Date.new()and java.util.Calendar.getInstance(), which adjust the time to suit your needs.

Answer 2

, java.util.Date.

joda-time, . . this

Answer 3

. , , TimeHelper, : Date factory, DateFormatters .., .

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Answer 4

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