diff --git a/java/java-tests/testData/inspection/dataFlow/fixture/EclipseDefaultTypeUse.java b/java/java-tests/testData/inspection/dataFlow/fixture/EclipseDefaultTypeUse.java
index 08122acd2489..dbf69af7a285 100644
--- a/java/java-tests/testData/inspection/dataFlow/fixture/EclipseDefaultTypeUse.java
+++ b/java/java-tests/testData/inspection/dataFlow/fixture/EclipseDefaultTypeUse.java
@@ -16,4 +16,26 @@ public class EclipseDefaultTypeUse {
     // List::add is not annotated but ArrayList<String> is defined in context of TYPE_USE NonNullByDefault annotation
     a.add(<warning descr="Passing 'null' argument to parameter annotated as @NotNull">null</warning>); 
   }
+}
+@NonNullByDefault
+@FunctionalInterface
+interface DefNotNull {
+  String apply(String s);
+}
+@FunctionalInterface
+interface Plain {
+  String apply(String s);
+}
+@NonNullByDefault
+class UseNotNull {
+  void test() {
+    DefNotNull l1 = s -> <warning descr="Condition 's == null' is always 'false'">s == null</warning> ? "null" : s.isEmpty() ? <warning descr="'null' is returned by the method declared as @NonNullByDefault">null</warning> : s;
+    Plain l2 = s -> s == null ? "null" : s.isEmpty() ? null : s;
+  }
+}
+class UsePlain {
+  void test() {
+    DefNotNull l1 = s -> <warning descr="Condition 's == null' is always 'false'">s == null</warning> ? "null" : s.isEmpty() ? <warning descr="'null' is returned by the method declared as @NonNullByDefault">null</warning> : s;
+    Plain l2 = s -> s == null ? "null" : s.isEmpty() ? null : s;
+  }
 }
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