X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FCaseInsensitiveString.java;h=536671db9d7399a16da6027d8866ebb5dbcb5b72;hb=66270dda280788c15956c7a0485f0b9adf03c62a;hp=b66e80d3616cd5e4b249f539198bcd43648a9b73;hpb=604cbee405a837565ba1a74aa9bddd62aed685ab;p=jalview.git

diff --git a/src/jalview/util/CaseInsensitiveString.java b/src/jalview/util/CaseInsensitiveString.java
index b66e80d..536671d 100644
--- a/src/jalview/util/CaseInsensitiveString.java
+++ b/src/jalview/util/CaseInsensitiveString.java
@@ -25,6 +25,8 @@ package jalview.util;
  * want to preserve case, but do not want to duplicate upper and lower case
  * variants
  */
+import java.util.Locale;
+
 public final class CaseInsensitiveString
 {
   String value;
@@ -71,7 +73,7 @@ public final class CaseInsensitiveString
   @Override
   public int hashCode()
   {
-    return value == null ? super.hashCode() : value.toUpperCase()
-            .hashCode();
+    return value == null ? super.hashCode()
+            : value.toUpperCase(Locale.ROOT).hashCode();
   }
 }