JAL-2864 OverviewCanvas.dispose() for applet

diff --git a/src/jalview/appletgui/OverviewCanvas.java b/src/jalview/appletgui/OverviewCanvas.java
index 9597b44..03c93fa 100644 (file)
--- a/src/jalview/appletgui/OverviewCanvas.java
+++ b/src/jalview/appletgui/OverviewCanvas.java
@@ -164,4 +164,12 @@ public class OverviewCanvas extends Component
     }
   }
 
+  /**
+   * Nulls references to protect against potential memory leaks
+   */
+  void dispose()
+  {
+    od = null;
+  }
+
 }

diff --git a/src/jalview/appletgui/OverviewPanel.java b/src/jalview/appletgui/OverviewPanel.java
index 8ce597d..4f47913 100755 (executable)
--- a/src/jalview/appletgui/OverviewPanel.java
+++ b/src/jalview/appletgui/OverviewPanel.java
@@ -329,6 +329,10 @@ public class OverviewPanel extends Panel implements Runnable,
     } finally
     {
       av = null;
+      if (oviewCanvas != null)
+      {
+        oviewCanvas.dispose();
+      }
       oviewCanvas = null;
       ap = null;
       od = null;