Use stringbuffer, not string+

diff --git a/src/jalview/analysis/AlignSeq.java b/src/jalview/analysis/AlignSeq.java
index 092928f..661857f 100755 (executable)
--- a/src/jalview/analysis/AlignSeq.java
+++ b/src/jalview/analysis/AlignSeq.java
@@ -655,14 +655,14 @@ public class AlignSeq
     public static String extractGaps(String gapChar, String seq)\r
     {\r
         StringTokenizer str = new StringTokenizer(seq, gapChar);\r
-        String newString = new String();\r
+        StringBuffer newString = new StringBuffer();\r
 \r
         while (str.hasMoreTokens())\r
         {\r
-            newString = newString + str.nextToken();\r
+            newString.append( str.nextToken() );\r
         }\r
 \r
-        return newString;\r
+        return newString.toString();\r
     }\r
 \r
     /**\r