X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fappletgui%2FOverviewCanvas.java;h=07f591971754be002438eb8392145dba1f51bdec;hb=76fe44a302e9bd32938af7ee2b70b48d7f0d4c4b;hp=ecc90b832b4c2436765e7f9ad98f01d6e2a78070;hpb=a958faf67348b6360f735e51b9b23c24976014cf;p=jalview.git

diff --git a/src/jalview/appletgui/OverviewCanvas.java b/src/jalview/appletgui/OverviewCanvas.java
index ecc90b8..07f5919 100644
--- a/src/jalview/appletgui/OverviewCanvas.java
+++ b/src/jalview/appletgui/OverviewCanvas.java
@@ -128,8 +128,7 @@ public class OverviewCanvas extends Component
     {
       mg.translate(0, od.getSequencesHeight());
       or.drawGraph(mg, av.getAlignmentConservationAnnotation(),
-              av.getCharWidth(), od.getGraphHeight(),
-              od.getColumns(av.getAlignment()));
+              od.getGraphHeight(), od.getColumns(av.getAlignment()));
       mg.translate(0, -od.getSequencesHeight());
     }
 
@@ -163,4 +162,12 @@ public class OverviewCanvas extends Component
     }
   }
 
+  /**
+   * Nulls references to protect against potential memory leaks
+   */
+  void dispose()
+  {
+    od = null;
+  }
+
 }