PluginException exception = new PluginException(longMessage);

        assertNotNull(exception);
        assertEquals(longMessage, exception.getMessage());
    }

    @Test
    public void test_multiLevelExceptionChain() {
        // Test multi-level exception chain
        Throwable level3 = new NullPointerException("Null value");
        Throwable level2 = new IllegalStateException("Invalid state", level3);

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