java Programming Glossary: jmm

Are volatile variable 'reads' as fast as normal reads?

http://stackoverflow.com/questions/1090311/are-volatile-variable-reads-as-fast-as-normal-reads

is no additional overhead associated with volatile reads. JMM cookbook from Doug Lea see architecture table near the bottom...

How can CopyOnWriteArrayList be thread-safe?

http://stackoverflow.com/questions/2950871/how-can-copyonwritearraylist-be-thread-safe

operations are not protected at all. As I understand under JMM all accesses to a variable both read and write should be protected.. does return get getArray index . In my understanding of JMM this means that get may observe the array in an inconsistent.. 4 are reordered like 1 2 new 4 2 copyOf 3. Do I understand JMM incorrectly or is there any other explanations on why CopyOnWriteArrayList..

Memory barriers and coding style over a Java VM

http://stackoverflow.com/questions/3964317/memory-barriers-and-coding-style-over-a-java-vm

the volatile publish the values will be seen under the new JMM final int a b Foo final int a final int b this.a a this.b b.. and static checking and you can also look at the JMM Cookbook for indicators about specific behaviors that would.. is sufficient but perhaps not necessary. Looking at the JMM FAQ the two entries How do final fields work under the new JMM..