hg: jdk9/sandbox/jdk: 8056205: (fs) Potential for NPE in Files.walkFileTree if closing directory fails

[chris.hegarty at oracle.com]

Changeset: 66b07872e356
Author:    bpb
Date:      2016-12-21 11:54 -0800
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/66b07872e356

8056205: (fs) Potential for NPE in Files.walkFileTree if closing directory fails
Summary: Change incorrect ioe != null to ioe == null
Reviewed-by: rriggs

! src/java.base/share/classes/java/nio/file/FileTreeWalker.java