Apply fix for HARMONY-4289: [classlib][prefs] test org.apache.harmony.prefs.tests.java.util.prefs.AbstractPreferencesTest should not depends on Internet connection

validating xml may need to access resource on internet, that may cause test
failure if testing machine can't connect to interent.

git-svn-id: https://svn.apache.org/repos/asf/harmony/enhanced/classlib/trunk@896746 13f79535-47bb-0310-9956-ffa450edef68
1 file changed