JAL-2388 Rationalised hashCode method in HiddenColumns

diff --git a/src/jalview/datamodel/HiddenColumns.java b/src/jalview/datamodel/HiddenColumns.java
index 2edb3f1..3685ab0 100644 (file)
--- a/src/jalview/datamodel/HiddenColumns.java
+++ b/src/jalview/datamodel/HiddenColumns.java
@@ -1247,9 +1247,10 @@ public class HiddenColumns
   /**
    * Returns a hashCode built from hidden column ranges
    */
-  public int hashCode(int hc)
+  @Override
+  public int hashCode()
   {
-    int hashCode = hc;
+    int hashCode = 1;
     if (hiddenColumns != null)
     {
       for (int[] hidden : hiddenColumns)