Add safe null check for visiting J.TypeParameter's modifiers

openrewrite · Nov 20, 2023 · 9965bbf · 9965bbf
1 parent 4f04066
commit 9965bbf
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/rewrite-java/src/main/java/org/openrewrite/java/JavaVisitor.java b/rewrite-java/src/main/java/org/openrewrite/java/JavaVisitor.java
@@ -1191,7 +1191,11 @@ public J visitTypeParameter(J.TypeParameter typeParam, P p) {
         t = t.withPrefix(visitSpace(t.getPrefix(), Space.Location.TYPE_PARAMETERS_PREFIX, p));
         t = t.withMarkers(visitMarkers(t.getMarkers(), p));
         t = t.withAnnotations(ListUtils.map(t.getAnnotations(), a -> visitAndCast(a, p)));
-        t = t.withModifiers(ListUtils.map(t.getModifiers(), m -> visitAndCast(m, p)));
+
+        if (t.getModifiers() != null && !t.getModifiers().isEmpty()) {
+            t = t.withModifiers(ListUtils.map(t.getModifiers(), m -> visitAndCast(m, p)));
+        }
+
         t = t.withName(visitAndCast(t.getName(), p));
         if (t.getName() instanceof NameTree) {
             t = t.withName((Expression) visitTypeName((NameTree) t.getName(), p));