assertEquals(innerException, exception.getCause());
        assertEquals(innerMessage, exception.getCause().getMessage());
    }

    @Test
    public void test_multiLevelExceptionChaining() {
        // Test multi-level exception chaining
        Exception level1 = new Exception("Level 1");
        RuntimeException level2 = new RuntimeException("Level 2", level1);

Shinsuke Sugaya <******@****.***> 1768120985 +0900