Hi, while looking through some bugs in JBS I found this[1] one.
It seems to be that it is already solved. I tried the submitted example with jdk6,7,8 and it seems that it works since jdk7. So maybe the bug can be closed, like the one it relates to JDK-5056544 javax.swing.timer stops after changing actual system time I created a headless swing based jtreg-test for JDK-4290274 but actually it would run only on linux(which can be changed) and must be started by a user that can change the time. Is it possible to integrate such a test in openjdk? -- Sebastian [0] https://bugs.openjdk.java.net/browse/JDK-4290274