JAL-2590 patch for rendering eggnog trees with polytomies (also see

[jalview.git] / src / jalview / gui / TreeCanvas.java

diff --git a/src/jalview/gui/TreeCanvas.java b/src/jalview/gui/TreeCanvas.java
index 3494fb8..e60ac8e 100755 (executable)
--- a/src/jalview/gui/TreeCanvas.java
+++ b/src/jalview/gui/TreeCanvas.java
@@ -332,9 +332,10 @@ public class TreeCanvas extends JPanel implements MouseListener, Runnable,
         g.fillRect(xend - 2, ypos - 2, 4, 4);
       }
 
-      int ystart = (int) (((SequenceNode) node.left()).ycount * chunk)
-              + offy;
-      int yend = (int) (((SequenceNode) node.right()).ycount * chunk)
+      int ystart = (node.left() == null ? 0 : (int) (((SequenceNode) node
+              .left()).ycount * chunk)) + offy;
+      int yend = (node.right() == null ? 0 : (int) (((SequenceNode) node
+              .right()).ycount * chunk))
               + offy;
 
       Rectangle pos = new Rectangle(xend - 2, ypos - 2, 5, 5);