public void setThreadpool(final String threadpool) {
        this.threadpool = threadpool;
    }
@Test
    public void testEqualsAndHashCode() {
        GrpcRegisterConfig config1 = new GrpcRegisterConfig();
        GrpcRegisterConfig config2 = new GrpcRegisterConfig();
        
        config1.setThreadpool("threadPool");
        config2.setThreadpool("threadPool");
        
        assertThat(ImmutableSet.of(config1, config2), hasSize(1));
    }