hg: jdk/sandbox: 8194070: Update various tests to pass under JDK 11

[chris.hegarty at oracle.com]

Changeset: 374c63fbe652
Author:    darcy
Date:      2018-01-31 11:25 -0800
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/374c63fbe652

8194070: Update various tests to pass under JDK 11
Reviewed-by: alanb, sherman, psandoz

! test/jdk/java/util/jar/JarFile/mrjar/MultiReleaseJarHttpProperties.java
! test/jdk/java/util/jar/JarFile/mrjar/MultiReleaseJarProperties.java
! test/jdk/jdk/nio/zipfs/MultiReleaseJarTest.java
! test/jdk/lib/testlibrary/java/util/jar/CreateMultiReleaseTestJars.java
! test/jdk/sun/net/www/protocol/jar/MultiReleaseJarURLConnection.java
! test/jdk/sun/security/tools/jarsigner/multiRelease/MVJarSigningTest.java