src/share/classes/com/sun/tools/javac/tree/TreeScanner.java

*** 287,296 ****
--- 287,308 ----
  
      @Override
      public void visitTypeBoundKind(TypeBoundKind that) {
      }
      
+     @Override
+     public void visitFunctionType(JCFunctionType tree) {
+         scan(tree.returnType);
+         scan(tree.parameterTypes);
+     }
+     
+     @Override
+     public void visitLambda(JCLambda tree) {
+         scan(tree.parameters);
+         scan(tree.bodyOrExpr);
+     }
+ 
      public void visitModifiers(JCModifiers tree) {
          scan(tree.annotations);
      }
  
      public void visitAnnotation(JCAnnotation tree) {