hg: jigsaw/jake/langtools: 8148608: Intermittent java.nio.file.ProviderNotFoundException when building Jake

[jan.lahoda at oracle.com]

Changeset: a8d05939727f
Author:    jlahoda
Date:      2016-03-01 17:58 +0100
URL:       http://hg.openjdk.java.net/jigsaw/jake/langtools/rev/a8d05939727f

8148608: Intermittent java.nio.file.ProviderNotFoundException when building Jake
Summary: Using Files.isRegularFile instead of !Files.isDirectory-Files.exists to check if a path is a file, to avoid trouble when a directory is created inbetween the isDirectory and exists calls.

! src/jdk.compiler/share/classes/com/sun/tools/javac/file/JavacFileManager.java