JAL-3691 toUpperCase(Locale.ROOT) for all standard file format operations

[jalview.git] / src / jalview / io / MSFfile.java

diff --git a/src/jalview/io/MSFfile.java b/src/jalview/io/MSFfile.java
index df2bed2..db29848 100755 (executable)
--- a/src/jalview/io/MSFfile.java
+++ b/src/jalview/io/MSFfile.java
@@ -29,6 +29,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Hashtable;
 import java.util.List;
+import java.util.Locale;
 import java.util.StringTokenizer;
 
 /**
@@ -184,7 +185,7 @@ public class MSFfile extends AlignFile
   public int checkSum(String seq)
   {
     int check = 0;
-    String sequence = seq.toUpperCase();
+    String sequence = seq.toUpperCase(Locale.ROOT);
 
     for (int i = 0; i < sequence.length(); i++)
     {