set conserve and quality null if outofmemory

diff --git a/src/jalview/gui/AlignViewport.java b/src/jalview/gui/AlignViewport.java
index 9a7df7f..fb3d4df 100755 (executable)
--- a/src/jalview/gui/AlignViewport.java
+++ b/src/jalview/gui/AlignViewport.java
@@ -365,6 +365,8 @@ public class AlignViewport
         {
           javax.swing.SwingUtilities.invokeLater(new Runnable()
           {
+
+
             public void run()
             {
               javax.swing.JOptionPane.showInternalMessageDialog(Desktop.desktop,
@@ -376,6 +378,9 @@ public class AlignViewport
             }
           });
 
+          conservation = null;
+          quality = null;
+
           System.out.println("Conservation calculation: " + error);
           System.gc();