void testPublicInterfaceAndPackage() {
        // Arrange & Act
        Class<SessionSetupHandler> clazz = SessionSetupHandler.class;

        // Assert
        assertTrue(clazz.isInterface(), "Should be an interface");
        assertTrue(Modifier.isPublic(clazz.getModifiers()), "Interface should be public");
        assertEquals("jcifs.smb", clazz.getPackageName(), "Package must match source");

    }

    @Test
    @DisplayName("Interface structure is as expected")
    void interfaceStructure() {
        Class<?> c = SpnegoConstants.class;
        assertTrue(c.isInterface(), "SpnegoConstants must be an interface");
        assertEquals(4, c.getDeclaredFields().length, "Unexpected number of fields");
        assertEquals(0, c.getDeclaredMethods().length, "No declared methods expected");

            // Then
            assertTrue(Modifier.isPublic(modifiers));
            assertFalse(Modifier.isAbstract(modifiers));
            assertFalse(Modifier.isInterface(modifiers));
        }
    }

            // Then
            assertTrue(Modifier.isPublic(modifiers));
            assertFalse(Modifier.isAbstract(modifiers));
            assertFalse(Modifier.isInterface(modifiers));
        }
    }

            return value;
        }
        try {
            final Class<?> implType = getClassForImplementationHint(type, configuration, loader);
            if (null == value && implType.isInterface() && configuration.getChildCount() == 0) {
                return null; // nothing to process
            }
            final Object bean = instantiateObject(implType);
            if (null == value) {

    void testInterfaceIsPublic() {
        int modifiers = SecurityInfo.class.getModifiers();
        assertTrue(Modifier.isPublic(modifiers), "SecurityInfo interface should be public");
        assertTrue(Modifier.isInterface(modifiers), "SecurityInfo should be an interface");
    }

    @Test
    @DisplayName("Test constant values range")
    void testConstantValuesRange() throws IllegalAccessException {

    void typeAndSignatures() throws Exception {
        Class<?> clazz = SmbResourceLocatorInternal.class;

        // Assert it's an interface and extends the right superinterface
        assertTrue(clazz.isInterface(), "Should be an interface");
        assertTrue(Arrays.asList(clazz.getInterfaces()).contains(SmbResourceLocator.class), "Should extend SmbResourceLocator");

        }

        @Test
        @DisplayName("Should be a public interface")
        void shouldBePublicInterface() {
            assertTrue(SmbSession.class.isInterface(), "SmbSession should be an interface");
            assertTrue(java.lang.reflect.Modifier.isPublic(SmbSession.class.getModifiers()), "SmbSession should be public");
        }
    }

    @Nested

            assertNotNull(resource.getLocator(), "Should have resource locator for SMB addressing");

            // Verify interface provides SMB-specific functionality
            assertTrue(SmbResource.class.isInterface(), "Should be an interface");
            assertTrue(AutoCloseable.class.isAssignableFrom(SmbResource.class), "Should be closeable for resource management");
        }

        @Test

      @SuppressWarnings("unchecked") // returns default for both F and T
      T defaultConverter = (T) defaultConverter(convertFromType, convertToType);
      return defaultConverter;
    }
    if (type.getRawType().isInterface()) {
      return newDefaultReturningProxy(type);
    }
    return null;
  }

  private <F, T> Converter<F, T> defaultConverter(
      TypeToken<F> convertFromType, TypeToken<T> convertToType) {