org.jdesktop.swingx.JXMonthViewTest fails when run on last day of a month

[homebeaver]

testTimeZoneChangeOffsetFirstDisplayedDate

    @Test
    public void testTimeZoneChangeOffsetFirstDisplayedDate() {
...
        assertEquals("first displayed must be offset by real offset", 
                realOffset,  monthView.getFirstDisplayedDay().getTime() - firstDisplayed.getTime());

siehe https://github.com/homebeaver/SwingSet3/actions/runs/1522343606

Error: Failures:
Error: JXMonthViewTest.testTimeZoneChangeOffsetFirstDisplayedDate:2126 first displayed must be offset by real offset expected:<-10800000> but was:<2581200000>
Error: JXMonthViewTest.testTimeZoneChangeToday:2042 first displayed must be offset by real offset
********** spurious failure - so try extensiv debug output:
server locale: en
server timezone: sun.util.calendar.ZoneInfo[id="Etc/UTC",offset=0,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]
server local time: Tue Nov 30 18:29:35 UTC 2021
first timeZone sun.util.calendar.ZoneInfo[id="GMT+04:00",offset=14400000,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]
first timezone offset / min 240
second timezone sun.util.calendar.ZoneInfo[id="GMT+07:00",offset=25200000,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]
second timezone offset / min 420
monthView locale: en
monthView anchor Tue Nov 30 18:29:35 UTC 2021
monthView firstDisplayed Tue Nov 30 17:00:00 UTC 2021 expected:<-180> but was:<43020>

windows:

junit.framework.AssertionFailedError: first displayed must be offset by real offset expected:<-10800000> but was:<2581200000>
	at junit.framework.Assert.fail(Assert.java:57)
	at junit.framework.Assert.failNotEquals(Assert.java:329)
	at junit.framework.Assert.assertEquals(Assert.java:78)
	at junit.framework.Assert.assertEquals(Assert.java:159)
	at junit.framework.TestCase.assertEquals(TestCase.java:302)
	at org.jdesktop.swingx.JXMonthViewTest.testTimeZoneChangeOffsetFirstDisplayedDate(JXMonthViewTest.java:2126)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:93)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:40)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:529)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:756)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:452)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)

[homebeaver]

war bereits issue 618!!!

testTimeZoneChangeToday

    /**
     * Issue #618-swingx: JXMonthView displays problems with non-default
     * timezones.
     * 
     * Here: test that the first displayed date is offset by offset diff of
     * timezones. Configure the monthView with a fixed timezone to clear up the
     * mist ...
     * 
     * This did fail on the server on 31mar2008, us/pacific timezone, en_US
     * locale. Trying to sim the context then.
     * 
     * Failed again at Tue Sep 30 10:12:31 PDT 2008, en_US locale. Next
     * (testTimeZoneChangeOffsetFirstDisplayedDate) failed at the same time, 
     */
    @Test
    public void testTimeZoneChangeToday() {
...
        String server = "server locale: " + Locale.getDefault()
                + "\n server timezone: " + localCal.getTimeZone()
                + "\n server local time: " + localCal.getTime();
        String timeZones = "first timeZone " + tz
                + "\n first timezone offset / min " + oldOffset / (1000 * 60)
                + "\n second timezone " + tzOther
                + "\n second timezone offset / min " + newOffset / (1000 * 60);
        String monthViewProps = "monthView locale: " + monthView.getLocale()
                + "\n monthView anchor " + anchor
                + "\n monthView firstDisplayed " + monthView.getFirstDisplayedDay();

        LOG.info("\n "+server + "\n "+timeZones + "\n "+monthViewProps); // print exected
        assertEquals(                                                  // JXMonthViewTest.java:2042
                "first displayed must be offset by real offset "
                        + "\n ********** spurious failure - so try extensiv debug output:"
                        + "\n " + server 
                        + "\n " + timeZones 
                        + "\n " + monthViewProps, 
                (realOffset) / (1000 * 60),
                (monthView.getFirstDisplayedDay().getTime() - firstDisplayed.getTime()) / (1000 * 60));

ist vs expected

monthView anchor Tue Nov 30 20:42:59 CET 2021 // is
monthView anchor Tue Nov 30 20:52:25 CET 2021 // expected

Unix:

siehe https://github.com/homebeaver/SwingSet3/actions/runs/1522343606

Error: Tests run: 144, Failures: 2, Errors: 0, Skipped: 0, Time elapsed: 2.312 s <<< FAILURE! - in org.jdesktop.swingx.JXMonthViewTest
Error: testTimeZoneChangeOffsetFirstDisplayedDate(org.jdesktop.swingx.JXMonthViewTest) Time elapsed: 0.006 s <<< FAILURE!
junit.framework.AssertionFailedError: first displayed must be offset by real offset expected:<-10800000> but was:<2581200000>
at org.jdesktop.swingx.JXMonthViewTest.testTimeZoneChangeOffsetFirstDisplayedDate(JXMonthViewTest.java:2126)

Error: testTimeZoneChangeToday(org.jdesktop.swingx.JXMonthViewTest) Time elapsed: 0.026 s <<< FAILURE!
junit.framework.AssertionFailedError:

first displayed must be offset by real offset 
 ********** spurious failure - so try extensiv debug output:
 server locale: en
 server timezone: sun.util.calendar.ZoneInfo[id="Etc/UTC",offset=0,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]
 server local time: Tue Nov 30 18:29:35 UTC 2021
 first timeZone sun.util.calendar.ZoneInfo[id="GMT+04:00",offset=14400000,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]
 first timezone offset / min 240
 second timezone sun.util.calendar.ZoneInfo[id="GMT+07:00",offset=25200000,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]
 second timezone offset / min 420
 monthView locale: en
 monthView anchor Tue Nov 30 18:29:35 UTC 2021
 monthView firstDisplayed Tue Nov 30 17:00:00 UTC 2021 expected:<-180> but was:<43020>
	at org.jdesktop.swingx.JXMonthViewTest.testTimeZoneChangeToday(JXMonthViewTest.java:2042)