RFR: 8145680: Remove unnecessary explicit initialization of volatile variables in java.base

[Andrew Haley]

On 20/12/15 20:02, Jason Mehrens wrote:

> For the cases where boolean was being assigned to 'true' (ASSCI and
> FileLockImpl) does it hurt performance since the accessor methods
> will now include a branch at the bytecode level?

That depends on the caller.  A trivial accessor method will usually be
inlined: if the caller uses ! foo.isOpen(), say, the two uses of !
will cancel.

> See: "Speed-kings of inverting booleans" at
> http://www.javaspecialists.eu/archive/Issue042.html

That's from 2002, and not valid any more.  Maybe not valid even back
then.

Andrew.