JAL-1152 avoid NPE on null alignment annotation vector

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

diff --git a/src/jalview/gui/PopupMenu.java b/src/jalview/gui/PopupMenu.java
index 1c7be46..8467c66 100644 (file)
--- a/src/jalview/gui/PopupMenu.java
+++ b/src/jalview/gui/PopupMenu.java
@@ -372,12 +372,12 @@ public class PopupMenu extends JPopupMenu
       {
         AlignmentAnnotation[] aa = ap.av.getAlignment()
                 .getAlignmentAnnotation();
-        for (int i = 0; i < aa.length; i++)
+        for (int i = 0; aa != null && i < aa.length; i++)
         {
-          if (aa[i].getRNAStruc() != null)
+          if (aa[i].isValidStruc() && aa[i].sequenceRef == null)
           {
             final String rnastruc = aa[i].getRNAStruc();
-            final String structureLine = aa[i].label;
+            final String structureLine = aa[i].label + " (alignment)";
             menuItem = new JMenuItem();
             menuItem.setText(MessageManager.formatMessage(
                     "label.2d_rna_structure_line", new String[]
@@ -414,7 +414,7 @@ public class PopupMenu extends JPopupMenu
           AlignmentAnnotation seqAnno[] = seq.getAnnotation();
           for (int i = 0; i < seqAnno.length; i++)
           {
-            if (seqAnno[i].getRNAStruc() != null)
+            if (seqAnno[i].isValidStruc())
             {
               final String rnastruc = seqAnno[i].getRNAStruc();