Java Concurrency Reentrant Lock

Meet Reentrant Lock

In this article, we will discuss about, java 5 inclusion Reentrant Lock. Reentrant Lock someway similar to synchronize block. But it provides much more flexibility than synchronize.   I encourage all my readers to use Reentrant lock as it is Extrinsic in nature and developer has much more control over it unlike synchronize.

Benefits of using Reentrant Lock over synchronize.

Reentrant Lock has some important methods. Please see the picture below

Reentrant Lock Working:  Once A thread lock reentrant lock , Lock hold count is increase by 1 when same thread release it it’s count decreased by  1.

Example: Usage of Reentrant lock in Transfer money from One Account to Another Account.

Code :

package com.example.concurrency.reentrant;

import java.util.concurrent.locks.ReentrantLock;

public class Account {

private ReentrantLock implicitLock= new ReentrantLock();
private String name;
private Integer balance=10000;

public ReentrantLock getImplicitLock() {
return implicitLock;
}

public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getBalance() {
return balance;
}
public void setBalance(Integer blance) {
this.balance = blance;
}


public boolean debit(Integer amount)
{
if(amount > balance)
{
System.out.println(Thread.currentThread().getName() + " :: " +name + " says ::"+ amount + " grater than current balance" );
return false;
}
balance = balance -amount;
System.out.println(Thread.currentThread().getName() + " :: " + name + " says ::"+ amount + " Debited Success Fully" );
return true;
}

public void credit(Integer amount)
{

balance = balance +amount;
System.out.println(Thread.currentThread().getName() + " :: " + name + " says ::"+ amount + " Credited Success Fully" );

}




}

package com.example.concurrency.reentrant;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.ReentrantLock;

public class AcountTransfer {
private ReentrantLock lock= new ReentrantLock();
public void transfer(Account from,Account to,Integer amount)
{
boolean transfer = false;
try
{
if(lock.tryLock())
{
System.out.println(Thread.currentThread().getName() + " says accuire lock");
boolean flag = from.debit(amount);
if(flag)
{
to.credit(amount);
}


System.out.println(Thread.currentThread().getName()+ " :: " + from.getName() + " says :: now balance is " + from.getBalance());
System.out.println(Thread.currentThread().getName()+ " :: " + to.getName() + " says :: now balance is " + to.getBalance());
transfer = true;

}
else
{

System.out.println(Thread.currentThread().getName() + " says fail to accuire both lock Try again");
transfer(from,to,amount);//try again
}




}
catch(Exception ex)
{
ex.printStackTrace();
}
finally
{
if(transfer)
{
lock.unlock();
}



}


}


public static void main(String[] args) {

ExecutorService service = Executors.newFixedThreadPool(3);


Account from = new Account();
from.setBalance(20000);
from.setName("Shamik Mitra");

Account to = new Account();
to.setName("Samir Mitra");
AcountTransfer transfer = new AcountTransfer();
Runnable a = new Runnable(){
public void run()
{
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

transfer.transfer(from, to, 200);

System.out.println(Thread.currentThread().getName() +" says :: Transfer successfull");
}
};

Runnable b = new Runnable(){
public void run()
{
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
transfer.transfer(to, from, 1000);

System.out.println(Thread.currentThread().getName() +" says :: Transfer successfull");
}
};
for(int i=0;i<4;i++)
{

service.submit(a);
service.submit(b);
}



}

}

Output :

pool-1-thread-1 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
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pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-3 says accuire lock
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-3 :: Shamik Mitra says ::200 Debited Success Fully
pool-1-thread-3 :: Samir Mitra says ::200 Credited Success Fully
pool-1-thread-3 :: Shamik Mitra says :: now balance is 19800
pool-1-thread-3 :: Samir Mitra says :: now balance is 10200
pool-1-thread-1 says fail to accuire both lock Try again
pool-1-thread-3 says :: Transfer successfull
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
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pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-1 says accuire lock
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-1 :: Shamik Mitra says ::200 Debited Success Fully
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-1 :: Samir Mitra says ::200 Credited Success Fully
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-1 :: Shamik Mitra says :: now balance is 19600
pool-1-thread-1 :: Samir Mitra says :: now balance is 10400
pool-1-thread-1 says :: Transfer successfull
pool-1-thread-2 says fail to accuire both lock Try again
pool-1-thread-2 says accuire lock
pool-1-thread-2 :: Samir Mitra says ::1000 Debited Success Fully
pool-1-thread-2 :: Shamik Mitra says ::1000 Credited Success Fully
pool-1-thread-2 :: Samir Mitra says :: now balance is 9400
pool-1-thread-2 :: Shamik Mitra says :: now balance is 20600
pool-1-thread-2 says :: Transfer successfull
pool-1-thread-3 says accuire lock
pool-1-thread-3 :: Samir Mitra says ::1000 Debited Success Fully
pool-1-thread-3 :: Shamik Mitra says ::1000 Credited Success Fully
pool-1-thread-3 :: Samir Mitra says :: now balance is 8400
pool-1-thread-3 :: Shamik Mitra says :: now balance is 21600
pool-1-thread-3 says :: Transfer successfull
pool-1-thread-1 says accuire lock
pool-1-thread-1 :: Shamik Mitra says ::200 Debited Success Fully
pool-1-thread-1 :: Samir Mitra says ::200 Credited Success Fully
pool-1-thread-1 :: Shamik Mitra says :: now balance is 21400
pool-1-thread-1 :: Samir Mitra says :: now balance is 8600
pool-1-thread-1 says :: Transfer successfull
pool-1-thread-2 says accuire lock
pool-1-thread-2 :: Samir Mitra says ::1000 Debited Success Fully
pool-1-thread-2 :: Shamik Mitra says ::1000 Credited Success Fully
pool-1-thread-2 :: Samir Mitra says :: now balance is 7600
pool-1-thread-2 :: Shamik Mitra says :: now balance is 22400
pool-1-thread-2 says :: Transfer successfull
pool-1-thread-3 says accuire lock
pool-1-thread-3 :: Shamik Mitra says ::200 Debited Success Fully
pool-1-thread-3 :: Samir Mitra says ::200 Credited Success Fully
pool-1-thread-3 :: Shamik Mitra says :: now balance is 22200
pool-1-thread-3 :: Samir Mitra says :: now balance is 7800
pool-1-thread-3 says :: Transfer successfull
pool-1-thread-1 says accuire lock
pool-1-thread-1 :: Samir Mitra says ::1000 Debited Success Fully
pool-1-thread-1 :: Shamik Mitra says ::1000 Credited Success Fully
pool-1-thread-1 :: Samir Mitra says :: now balance is 6800
pool-1-thread-1 :: Shamik Mitra says :: now balance is 23200
pool-1-thread-1 says :: Transfer successfull

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Java Concurrency Fork Join Pool

Fork Join pool

ForkJoinPool was introduced in Java 7. Same is similar to Executor framework but with one difference. Forkjoin pool acts in recursive way unlike Executor thread, Executor thread splits the bigger task then submit task to worker threads. ForkJoin pool takes a big task then

Split into smaller tasks again those smaller tasks splits themselves to  sub tasks until each sub-task is atomic or not divisible.  So it work’s recursively. 

Pictorial view to understand ForkJoin pool concept.                      

                          

                                                Divide Task in to smaller tasks

Fork: To split the sub-tasks from Bigger task. Ex: Task 1.1 splits to Task 1.1.1 and Task 1.1.2

Join: Getting result from immediate sub-tasks. Ex: Task 1.1 take results from Task 1.1.1 and Task 1.1.2

Fork Join pool is faster than Executor service.

Fork join Vs Executor service.

Example:

Suppose we want search an element in a sorted array. So we will use

 Binary Search Algorithm.

Our Search Algorithm:

Step 1:   Determines the mid element of the array, check mid element equals with search element if so return else split array in to two halves based on mid element.

Step 2: If search element is less than mid element then we create a new subtask in this sub task we take left half of the array.

Step 3: If element is greater than mid element then we create a new subtask in this sub task we take right half of the array.

Step 4: Until element is not found we continue the step 4 and 5.

Step 5: If array size is 1 and array element is not equal to search element. returns Element Not Found.

Coding:

package com.example.concurrency;

import java.util.Arrays;

import java.util.concurrent.RecursiveTask;

public class ForkJoinSearcher extends RecursiveTask<Boolean>{

       int[] arr;

       int searchableElement;

       ForkJoinSearcher(int[] arr,int search)

       {

              this.arr = arr;

              this.searchableElement=search;

             

       }

       @Override

       protected Boolean compute() {

      

              int mid=( 0 + arr.length)/2;

              System.out.println(Thread.currentThread().getName() + " says : After splliting the arry length is :: "+ arr.length + " Midpoint is " + mid);

             

              if(arr[mid]==searchableElement)

              {

                     System.out.println(" FOUND !!!!!!!!!");

                     return true;

              }

              else if(mid==1 || mid == arr.length)

              {

                     System.out.println("NOT FOUND !!!!!!!!!");

                     return false;

              }

              else if(searchableElement < arr[mid])

              {

                     System.out.println(Thread.currentThread().getName() + " says :: Doing Left-search");

                     int[] left = Arrays.copyOfRange(arr, 0, mid);

                     ForkJoinSearcher forkTask = new ForkJoinSearcher(left,searchableElement);

                     forkTask.fork();

                     return forkTask.join();

              }

              else if(searchableElement > arr[mid])

              {

                     System.out.println(Thread.currentThread().getName() + " says :: Doing Right-search");

                     int[] right = Arrays.copyOfRange(arr, mid, arr.length);

                     ForkJoinSearcher forkTask = new ForkJoinSearcher(right,searchableElement);

                     forkTask.fork();

                     return forkTask.join();

              }

             

              return false;

             

       }

}

package com.example.concurrency;

import java.util.Arrays;

import java.util.concurrent.ForkJoinPool;

public class BinarySearch {

      

       int[] arr = new int[100];

      

       public BinarySearch()

       {

              init();

       }

      

       private void init()

       {

              for(int i=0; i<arr.length;i++)

              {

                     arr[i]=i;

              }

             

              Arrays.sort(arr);

             

             

       }

      

       public void createForJoinPool(int search)

       {

              ForkJoinPool forkJoinPool = new ForkJoinPool(50);

              ForkJoinSearcher searcher = new ForkJoinSearcher(this.arr,search);

              Boolean status = forkJoinPool.invoke(searcher);

             

              System.out.println(" Element ::" + search +" has been found in array? :: " + status );

             

       }

      

      

       public static void main(String[] args) {

             

              BinarySearch search = new BinarySearch();

              search.createForJoinPool(10);

              System.out.println("**********************");

              search.createForJoinPool(104);

             

       }

      

      

      

}

Output :

ForkJoinPool-1-worker-57 says : After splliting the arry length is :: 100 Midpoint is 50

ForkJoinPool-1-worker-57 says :: Doing Left-search

ForkJoinPool-1-worker-57 says : After splliting the arry length is :: 50 Midpoint is 25

ForkJoinPool-1-worker-57 says :: Doing Left-search

ForkJoinPool-1-worker-50 says : After splliting the arry length is :: 25 Midpoint is 12

ForkJoinPool-1-worker-50 says :: Doing Left-search

ForkJoinPool-1-worker-57 says : After splliting the arry length is :: 12 Midpoint is 6

ForkJoinPool-1-worker-57 says :: Doing Right-search

ForkJoinPool-1-worker-50 says : After splliting the arry length is :: 6 Midpoint is 3

ForkJoinPool-1-worker-50 says :: Doing Right-search

ForkJoinPool-1-worker-43 says : After splliting the arry length is :: 3 Midpoint is 1

 FOUND !!!!!!!!!

 Element ::10 has been found in array? :: true

**********************

ForkJoinPool-2-worker-57 says : After splliting the arry length is :: 100 Midpoint is 50

ForkJoinPool-2-worker-57 says :: Doing Right-search

ForkJoinPool-2-worker-57 says : After splliting the arry length is :: 50 Midpoint is 25

ForkJoinPool-2-worker-57 says :: Doing Right-search

ForkJoinPool-2-worker-50 says : After splliting the arry length is :: 25 Midpoint is 12

ForkJoinPool-2-worker-50 says :: Doing Right-search

ForkJoinPool-2-worker-57 says : After splliting the arry length is :: 13 Midpoint is 6

ForkJoinPool-2-worker-57 says :: Doing Right-search

ForkJoinPool-2-worker-50 says : After splliting the arry length is :: 7 Midpoint is 3

ForkJoinPool-2-worker-50 says :: Doing Right-search

ForkJoinPool-2-worker-57 says : After splliting the arry length is :: 4 Midpoint is 2

ForkJoinPool-2-worker-57 says :: Doing Right-search

ForkJoinPool-2-worker-43 says : After splliting the arry length is :: 2 Midpoint is 1

NOT FOUND !!!!!!!!!

 Element ::104 has been found in array? :: false

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