Dependencies between classe of NIO2

[Alan Bateman]

Rémi Forax wrote:
> It seems that Path as lot of dependencies.
>
> Path path = Paths.get(".");
> System.out.println(path.getName());
>
> I wonder if some of them can be removed.
Thanks Rémi. I'll create a bug for this. A few initial comments below.

> :
> [Loaded java.nio.file.attribute.UserPrincipalLookupService from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
> [Loaded sun.nio.fs.UnixFileSystem$4 from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
This is the initialization of UnixFileSystem.theLookupService, which 
should be changed to be lazily initialized.

> :
> [Loaded java.nio.file.DirectoryStream$Filter from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
> [Loaded sun.nio.fs.AbstractPath$1 from /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
> [Loaded java.nio.file.WatchEvent$Modifier from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
These are the initialization of AbstractPath.acceptAllFilter and 
AbstractPath.NO_MODIFIERS. These should be changed too.

> [Loaded sun.nio.fs.UnixNativeDispatcher from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
> [Loaded sun.nio.fs.UnixNativeDispatcher$1 from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
> [Loaded java.nio.file.attribute.BasicFileAttributes from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
> [Loaded java.nio.file.attribute.PosixFileAttributes from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
> [Loaded sun.nio.fs.UnixFileAttributes from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
> [Loaded sun.nio.fs.UnixFileStoreAttributes from 
> /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
> [Loaded sun.nio.fs.UnixMountEntry from /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
This a a bit trickery as it's the initialization of the native 
dispatcher (and causes initializations of a a few Unix* classes that are 
known to native code) but should be re-examined.

> [Loaded sun.nio.fs.Util from /usr/jdk/jdk1.7.0/jre/lib/rt.jar]
If I remember correctly, this class came about about String.split loaded 
all of regex. Sherman has since pushed changes (6840246) that probably 
means we can get rid of the Util class.

-Alan.