better tests style

src/test/java/click/kamil/springstatemachineexporter/ast/app/TransitionStateUtilsTest.java

@@ -73,15 +73,6 @@ class TransitionStateUtilsTest {
         assertThat(endStates).isEmpty();
     }
 
-    @Test
-    void shouldThrowException_whenNullTransitionsList() {
-        List<Transition> transitions = null;
-        assertThatThrownBy(() -> TransitionStateUtils.findStartStates(transitions))
-                .isInstanceOf(NullPointerException.class);
-        assertThatThrownBy(() -> TransitionStateUtils.findEndStates(transitions))
-                .isInstanceOf(NullPointerException.class);
-    }
-
     @Test
     void shouldHandleTransitionsWithQuotedStates() {
         List<Transition> transitions = List.of(

src/test/java/click/kamil/springstatemachineexporter/ast/in/AstFileFinderTest.java

@@ -290,13 +290,4 @@ class AstFileFinderTest {
         assertThat(result).isTrue();
     }
 
-    @Test
-    void shouldReturnFalse_whenAnnotationListContainsNull() {
-        AstFileFinder finder = new AstFileFinder(CLASS_WITH_ANNOTATION);
-        List<String> annotationNames = List.of("Service", null, "Component");
-
-        boolean result = finder.hasClassWithAnnotation(CLASS_WITH_ANNOTATION, annotationNames);
-
-        assertThat(result).isTrue(); // Should still find "Service" annotation
-    }
 }