@Test
public void testConstructor06() {

    Thread.currentThread().setContextClassLoader(new BadClassLoader());
    try {
        new MessageManager("");
        fail("例外が発生しませんでした");
    } catch (Exception e) {
        e.printStackTrace();
        assertEquals("java.lang.RuntimeException: hoge", e.getMessage());
        assertEquals(MessageRuntimeException.class, e.getClass());
    }
}