make travis ci happy

beast-dev · Aug 4, 2023 · 04b3519 · 04b3519
1 parent 77713e9
commit 04b3519
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/dr/evomodel/branchratemodel/AbstractBranchRateModel.java b/src/dr/evomodel/branchratemodel/AbstractBranchRateModel.java
@@ -90,6 +90,9 @@ public void makeDirty() {
     public LogColumn[] getColumns() {
         if (this instanceof DifferentiableBranchRates) {
             Tree tree = ((DifferentiableBranchRates) this).getTree();
+            if (tree == null) {
+                return super.getColumns();
+            }
             LogColumn[] columns = new LogColumn[tree.getNodeCount() - 1];
             for (int i = 0; i < columns.length; i++) {
                 if (tree.getNode(i) != tree.getRoot())