git: openjdk/jdk15u-dev: 8251329: (zipfs) Files.walkFileTree walks infinitely if zip has dir named "." inside

[Yuri Nesterenko]

Changeset: 5f1309f3
Author:    Yuri Nesterenko <yan at openjdk.org>
Date:      2021-12-07 08:10:04 +0000
URL:       https://git.openjdk.java.net/jdk15u-dev/commit/5f1309f3fdbbdc8872921541f33bcaeb39289db4

8251329: (zipfs) Files.walkFileTree walks infinitely if zip has dir named "." inside

Backport-of: 3e3051e2ee93142983e9a3edee038e4f7b5ac0f2

! src/jdk.zipfs/share/classes/jdk/nio/zipfs/ZipFileSystem.java
! src/jdk.zipfs/share/classes/module-info.java
+ test/jdk/jdk/nio/zipfs/HasDotDotTest.java