[foobarian]

I ran into my share of concurrency bugs, but one thing I could never intentionally trigger was any kind of inconsistency stemming from removing a "volatile" modifier from a mutable field in Java. Maybe the JVM I tried this with was just too awesome.

[hashmash]

Were you only testing on x86 or any other "total store order" architecture? If so, removing the volatile modifier has less of an impact.