Question about atomicity in ConcurrentHashMap

[Gernot Neppert]

Am 23.05.2013 18:34, schrieb Sam Pullara:
> ConcurrentHashMap overrides computeIfAbsent and does something that will not compute more than once. However, it appears that they suggest not doing anything expensive as other operations on the map may block during the computation.
>


No, it doesn't - that's why I started this thread in the first place ;-)

I'm using the Win32 snaphot of build 90. Maybe it's just the source 
bundle in the JDK snapshot that has not been updated?!