Spy does not see method called in feedback call

[misczu]

check that

• The problematic code (if that's possible) is copied here;

       class A {
             B callee;
             public A(B callee) {
               this.callee = callee;
               callee.setCallback(this);
             }
             public void call(String val) {
               callee.executeAndCallback(val);
             }
             public void receive(String val) {
               System.out.println("Received: " + val);
             }
       }
       
       class B {
           A callback;
           public void setCallback(A callback) {
             this.callback = callback;
           }
           public void executeAndCallback(String val) {
             callback.receive(val);
           }
       }
       
       @Test
       void test() {
             //given
             B b = new B();
             A a = new A(b);
             A spyA = spy(a);
             //when
             spyA.call("123");
             //then
             verify(spyA, times(1)).receive(anyString());
       }
  

• Provide versions (mockito / jdk / os / any other relevant information)

• mockito-core - 5.11.0
  junit-jupiter - 5.10.2
  java 17
  W10

• Error

Wanted but not invoked:
a.receive();
-> at dk.bec.mortgage.resultclient.service.POC_Test$A.receive(POC_Test.java:24)

However, there was exactly 1 interaction with this mock:
a.call("123");
-> at dk.bec.mortgage.resultclient.service.POC_Test.test(POC_Test.java:47)

[misczu]

@raphw can you look into this, please? :)

[raphw]

Shouldn't you specify that the real method should be invoked?

[misczu]

but it is spy, so it is calling real method