jabref-3.6-guava.patch

--- jabref-3.6/src/main/java/net/sf/jabref/logic/integrity/IntegrityCheck.java.orig
+++ jabref-3.6/src/main/java/net/sf/jabref/logic/integrity/IntegrityCheck.java
@@ -459,7 +459,7 @@
         public List<IntegrityMessage> check(BibEntry entry) {
             List<IntegrityMessage> results = new ArrayList<>();
             for (Map.Entry<String, String> field : entry.getFieldMap().entrySet()) {
-                boolean asciiOnly = CharMatcher.ascii().matchesAllOf(field.getValue());
+                boolean asciiOnly = CharMatcher.ASCII.matchesAllOf(field.getValue());
                 if (!asciiOnly) {
                     results.add(new IntegrityMessage(Localization.lang("Non-ASCII encoded character found"), entry,
                             field.getKey()));