kares@clevo:~/workspace/oss/jruby$ bin/jruby -Itest test/jruby/test_date.rb 
/home/kares/workspace/oss/jruby/lib/ruby/stdlib/power_assert.rb:7: warning: tracing (e.g. set_trace_func) will not capture all events without --debug flag
Loaded suite test/jruby/test_date
Started
....................................F
=============================================================================================================================================================================================================
Failure: test_time_conv(TestDate)
test/jruby/test_date.rb:565:in `test_time_conv'
     562:   def test_time_conv
     563:     today = Date.today
     564:     assert_equal(today.to_s, Date.today.to_time.strftime('%F'))
  => 565:     assert_equal(today, Date.today.to_time.to_date)
     566: 
     567:     time = DateTime.now
     568:     #assert_equal(nil, time.to_time.zone)
<#<Date: 2019-01-27 ((2458510j,0s,0n),+0s,2299161j)>> expected but was
<#<Date: 2019-01-27 ((2458511j,0s,0n),+0s,2299161j)>>

diff:
? #<Date: 2019-01-27 ((2458510j,0s,0n),+0s,2299161j)>
?                            1                       
=============================================================================================================================================================================================================
........

Finished in 0.704371 seconds.
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45 tests, 1073 assertions, 1 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
97.7778% passed
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63.89 tests/s, 1523.34 assertions/s