safety null check

SoarGroup · Dec 3, 2024 · b06855e · b06855e
1 parent fa0c98e
commit b06855e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/main/java/edu/umich/soar/visualsoar/datamap/DataMapTree.java b/src/main/java/edu/umich/soar/visualsoar/datamap/DataMapTree.java
@@ -412,7 +412,7 @@ public void mouseClicked(MouseEvent e) {
                     FakeTreeNode ftn = ((FakeTreeNode) path.getLastPathComponent());
                     if (ftn == null) return;
                     NamedEdge ne = ftn.getEdge();
-                    if (ne.isGenerated() && (ne.getNode() != null)) {
+                    if (ne != null && ne.isGenerated() && (ne.getNode() != null)) {
                         (ne.getNode()).openRules(MainFrame.getMainFrame(), ne.getLine());
                     }
                 }