Change Jimfs to use FileSystems.newFileSystem with its own ClassLoader.
Change Jimfs to use FileSystems.newFileSystem with its own ClassLoader.

Otherwise it won't work when it's not loaded by the system ClassLoader.

wrmsr/jimfs,szpak/jimfs,rasheedamir/jimfs,yaochang/jimfs,rasheedamir/jimfs,google/jimfs,akkinenirajesh/jimfs,wrmsr/jimfs,szpak/jimfs,akkinenirajesh/jimfs,google/jimfs,thejavamonk/jimfs,yaochang/jimfs