diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 7d56533..9832a95 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -26,7 +26,9 @@ jobs:
     strategy:
       matrix:
         java: [ '17', '21' ]
-        
+    permissions:
+      pull-requests: write
+
     steps:
     - uses: actions/checkout@v4
       with:
@@ -60,3 +62,15 @@ jobs:
         REVISON: ${{ github.ref_name}}
         TEST_ENVIRONMENT: java${{ matrix.java }}
       run: mvn -Dxray.clientId=${{ env.XRAYCLOUD_CLIENT_ID }} -Dxray.clientSecret=${{ env.XRAYCLOUD_CLIENT_SECRET }} -Dxray.testEnvironment=${{ env.TEST_ENVIRONMENT }} -Dxray.testPlanKey=${{ env.XRAYCLOUD_TEST_PLAN_KEY }} -Dxray.revision=${{ env.REVISON }} xray:import-results  
+    - name: add link to Test Plan having the Test Executions (one per Java version) on the build summary
+      run: |
+        echo "| Link |" >> $GITHUB_STEP_SUMMARY
+        echo "| --- |" >> $GITHUB_STEP_SUMMARY
+        echo "| Test Plan: [${{ vars.XRAYCLOUD_TEST_PLAN_KEY }}](${{ vars.JIRACLOUD_BASE_URL }}/browse/${{ vars.XRAYCLOUD_TEST_PLAN_KEY }}) | " >> $GITHUB_STEP_SUMMARY
+    - name: add link to Test Plan on the PR
+      uses: mshick/add-pr-comment@v2
+      if: github.event_name == 'pull_request'
+      with:
+        message: |
+          Test Plan: [${{ vars.XRAYCLOUD_TEST_PLAN_KEY }}](${{ vars.JIRACLOUD_BASE_URL }}/browse/${{ vars.XRAYCLOUD_TEST_PLAN_KEY }}) 
+  
diff --git a/src/test/java/com/sergiofreire/xray/tutorials/springboot/UserRepositoryTest.java b/src/test/java/com/sergiofreire/xray/tutorials/springboot/UserRepositoryTest.java
index a66b284..04f0659 100644
--- a/src/test/java/com/sergiofreire/xray/tutorials/springboot/UserRepositoryTest.java
+++ b/src/test/java/com/sergiofreire/xray/tutorials/springboot/UserRepositoryTest.java
@@ -40,6 +40,20 @@ void findByIdReturnsNullWhenInvalidId() {
         assertThat(fromDb).isEmpty();
     }
 
+    @Test
+    void findByUsernameReturnsUserForValidUsername() {
+        User john = new User("John Doe", "johndoe", "dummypassword");
+        entityManager.persistAndFlush(john);
+
+        User user = userRepository.findByUsername("johndoe");
+        assertThat(user).isEqualTo(john);
+    }
+
+    @Test
+    void findByUsernameReturnsNullWhenInvalidUsername() {
+        User user = userRepository.findByUsername("missinguser");
+        assertThat(user).isNull();
+    }
 
     @Test
     void findAllReturnsAllUsers() {
diff --git a/src/test/java/com/sergiofreire/xray/tutorials/springboot/UserServiceUnitTest.java b/src/test/java/com/sergiofreire/xray/tutorials/springboot/UserServiceUnitTest.java
index a9d69fd..f4d2240 100644
--- a/src/test/java/com/sergiofreire/xray/tutorials/springboot/UserServiceUnitTest.java
+++ b/src/test/java/com/sergiofreire/xray/tutorials/springboot/UserServiceUnitTest.java
@@ -46,6 +46,7 @@ void setUp() {
  
         Mockito.when(userRepository.findById(john.getId())).thenReturn(Optional.of(john));
         Mockito.when(userRepository.findByUsername(john.getUsername())).thenReturn(john);
+        Mockito.when(userRepository.findByUsername(john.getUsername())).thenReturn(john);
         Mockito.when(userRepository.findAll()).thenReturn(allUsers);
         Mockito.when(userRepository.findById(-99L)).thenReturn(Optional.empty());
     }
@@ -85,21 +86,22 @@ void getUserDetailsReturnsEmptyIfNonExisting() {
     }
 
     @Test
-     void existsReturnsTrueIfExisting() {
-        boolean exists = userService.exists("johndoe");
+    void existsReturnsTrueForValidUsername() {
+        boolean userFound = userService.exists("johndoe");
 
         Mockito.verify(userRepository, VerificationModeFactory.times(1)).findByUsername(Mockito.anyString());
-        assertThat(exists).isTrue();
+        assertThat(userFound).isTrue();
     }
-
+    
     @Test
-     void existsReturnsFalseIfNonExisting() {
-        boolean exists = userService.exists("unknown");
+    void existsReturnsFalseForInvalidUsername() {
+        boolean userFound = userService.exists("missinguser");
 
         Mockito.verify(userRepository, VerificationModeFactory.times(1)).findByUsername(Mockito.anyString());
-        assertThat(exists).isFalse();
+        assertThat(userFound).isFalse();
     }
 
+
     @Test
      void getAllUsersReturnsAllExistingUsers() {
         User john = new User("John Doe", "johndoe", "dummypassword");