Exception in thread "main" redis.clients.jedis.exceptions.JedisException: Could not return the resource to the pool

 at redis.clients.util.Pool.returnResourceObject(Pool.java:65)

 at redis.clients.jedis.JedisPool.returnResource(JedisPool.java:113)

 at redis.clients.jedis.JedisPool.returnResource(JedisPool.java:11)

 at redis.clients.jedis.Jedis.close(Jedis.java:3580)

 at com.wordpress.itfromzerotohero.redis.RedisLogic.setValue(RedisLogic.java:55)

 at com.wordpress.itfromzerotohero.App.fillData(App.java:38)

 at com.wordpress.itfromzerotohero.App.main(App.java:20)

 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

 at java.lang.reflect.Method.invoke(Method.java:606)

 at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

Caused by: java.lang.IllegalStateException: Object has already been retured to this pool or is invalid

 at org.apache.commons.pool2.impl.GenericObjectPool.returnObject(GenericObjectPool.java:582)

 at redis.clients.util.Pool.returnResourceObject(Pool.java:63)

 ... 11 more

public class RedisLogic {



 private RedisLogic (){



 }



 private static RedisLogic instance = new RedisLogic();

 private static Jedis jedis = null;

 private static JedisPool jedisPool = null;



 public static RedisLogic getInstance(){

 return instance;

 }



 public static void getConnection(){

 JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();

 jedisPoolConfig.setMaxTotal(10);

 jedisPoolConfig.setMaxIdle(2);

 jedisPoolConfig.setMinIdle(1);



 if (jedisPool == null) {

 jedisPool = new JedisPool(jedisPoolConfig, "localhost", 6379);

 }

 if (jedis == null) {

 jedis = jedisPool.getResource();

 }

 }



 public void releaseConnection(){

 if (jedis != null) {

 jedis.close();

 }

 }



 public void setValue(String key, String value){

 try {

 jedis.set(key, value);

 } catch (JedisException e) {

 if (jedis != null) {

 jedisPool.returnBrokenResource(jedis);

 jedis = null;

 }

 } finally {

 if (jedis != null) {

 jedis.close();

 }

 }

 }



 public String getValue(String key){

 String result = null;

 try {

 result = jedis.get(key);

 } catch (JedisException e) {

 e.printStackTrace();

 if (jedis != null) {

 jedisPool.returnBrokenResource(jedis);

 jedis = null;

 }

 } catch (Exception ex) {

 ex.printStackTrace();

 } finally {

 if (jedis != null) {

 jedis.close();

 }

 }

 return result;

 }

}

public class App 

{

 public static void main( String[] args )

 {

 fillData();

 }



 private static void fillData(){

 RedisLogic redisLogic = RedisLogic.getInstance();

 redisLogic.getConnection();

 for (int i=0; i <= 10; i++) {

 redisLogic.setValue("name" + i, "bluething" + i);

 }

 }



 private static void getData(){

 RedisLogic redisLogic = RedisLogic.getInstance();

 redisLogic.getConnection();

 for (int i=0; i <= 5; i++) {

 System.out.println("Key: name" + i + " value: " + redisLogic.getValue("name" + i));

 }

 }



 private static void simpleSetString(){

 Jedis jedis = new Jedis("localhost");

 System.out.println("Connection to server ok");

 System.out.println("Ping to server:" + jedis.ping());



 jedis.set("name", "bluething");

 System.out.println("Name stored in jedis server: " + jedis.get("name"));

 }

}