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On my linux server, any java program (even the “Hello world”) uses 100% of cpu and is very very slow. Id does not depend on the java version, I have tried different versions of openjdk and sun jdk, both behave the same. How could I fix that?
I have found the solution in this article http://blog.wpkg.org/2012/07/01/java-leap-second-bug-30-june-1-july-2012-fix/
There is a great chance, this is caused by the “leap second kernel bug”. Firstly, check for the following in the
dmesgTo fix it, firstly stop the ntp client. On debian-like systems
Store the current time
And test the java. If everything is working correctly, try to restart ntp service
And test it again.