What is the difference between HashMap in alt-rt.jar and rt.jar. I think I see a considerable speed up in one of my applications, what would be the explanation?
Best Regards
P.S.: I found the two different *.jar in JDK 1.6.0_25 64-bit. Eventually the speed up is also related to alt-string.jar. This alt could eventually be related to a command line option:
http://thevirtualmachinist.blogspot.com/2010/09/xxusecompressedstrings.html
But I am more interested in understanding alt-rt.jar and I don't see from the above article that there is a command line option related to it.