@Test
    public void test_x() {
    	System.err.println("test5");
        //NotNull琬
        assertNotNull(sample2.toString());
        
        //ҒlƎђlQƂĂȂꍇ͐IB
        assertNotSame(sample2.toString(),sample.toString());
        
        //
        //assertThat(sample2.toString(),);
    }