How to implement Redis Multi-Exec by using Spring-data-Redis

All Spring Configuration is written properly. Non-Multi-Exec Redis operations work perfectly.

@Autowired
@Qualifier("stringRedisTemplate")
StringRedisTemplate template;

void test(){
  template.multi();
  template.boundValueOps("somevkey").increment(1);
  template.boundZSetOps("somezkey").add("zvalue", timestamp);
  template.exec();
}

After running above code through Junit Test, Exceptions are thrown.

    org.springframework.data.redis.RedisSystemException: Unknown exception; nested exception is org.springframework.data.redis.RedisSystemException: Unknown jedis exception; nested exception is java.lang.NullPointerException
        at org.springframework.data.redis.connection.jedis.JedisUtils.convertJedisAccessException(JedisUtils.java:93)
        at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.translateExceptionIfPossible(JedisConnectionFactory.java:155)
        at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:58)
        at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
        at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:163)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
        at $Proxy66.appendUserStream(Unknown Source)
        at com.uniu.test.repository.StreamCacheRepositoryTest.testAppendUserStream(StreamCacheRepositoryTest.java:23)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)