Java多线程 自定义线程池详情
作者：冬日毛毛雨
这篇文章主要介绍了Java多线程 自定义线程池，文章主要是学习代码，没有过多解析,需要的朋友可以参考一下文章的具体内容
主要介绍：
- 1.任务队列
- 2.拒绝策略（抛出异常、直接丢弃、阻塞、临时队列）
- 3.
init( min ) - 4.
active - 5.
max
min<=active<=max
package chapter13;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
public class SimpleThreadPool {
public final static DiscardPolicy DEFAULT_DISCARD_POLICY = () -> {
throw new DiscardException("Discard This Task.");
};
private final static int DEFAULT_SIZE = 10;
//设置线程任务最大值
private final static int DEFAULT_TASK_QUEUE_SIZE = 2000;
private final static LinkedList<Runnable> TASK_QUEUE = new LinkedList<>();
private final static String THREAD_PREFIX = "SIMPLE_THREAD_POOL-";
private final static ThreadGroup GROUP = new ThreadGroup("Pool_Group");
private final static List<WorkerTask> THREAD_QUEUE = new ArrayList<>();
private static volatile int seq = 0;
private final int size;
//队列大小
private final int queueSize;
private final DiscardPolicy discardPolicy;
private volatile boolean destroy = false;
public SimpleThreadPool() {
this(DEFAULT_SIZE, DEFAULT_TASK_QUEUE_SIZE, DEFAULT_DISCARD_POLICY);
}
public SimpleThreadPool(int size, int queueSize, DiscardPolicy discardPolicy) {
this.size = size;
this.queueSize = queueSize;
this.discardPolicy = discardPolicy;
init();
}
private void init() {
for (int i = 0; i < size; i++) {
createWorkTask();
}
}
public void submit(Runnable runnable) {
if(destroy) throw new IllegalStateException("The thread pool already destroy and not allow submit task.");
synchronized (TASK_QUEUE) {
if (TASK_QUEUE.size() > queueSize) discardPolicy.discard();
TASK_QUEUE.addLast(runnable);
TASK_QUEUE.notifyAll();
}
}
private void createWorkTask() {
WorkerTask task = new WorkerTask(GROUP, THREAD_PREFIX + (seq++));
task.start();
THREAD_QUEUE.add(task);
}
public void shutdown() throws InterruptedException {
while (!TASK_QUEUE.isEmpty()) {
Thread.sleep(50);
}
int initVal = THREAD_QUEUE.size();
while (initVal > 0) {
for (WorkerTask task : THREAD_QUEUE) {
if (task.getTaskState() == TaskState.BLOCKED) {
task.interrupt();
task.close();
initVal--;
} else {
Thread.sleep(10);
}
}
}
this.destroy = true;
System.out.println("The thread pool disposed.");
}
public int getSize() {
return size;
}
public int getQueueSize() {
return queueSize;
}
public boolean destory() {
return this.destroy;
}
private enum TaskState {
FREE, RUNNING, BLOCKED, DEAD
}
public interface DiscardPolicy {
void discard() throws DiscardException;
}
public static class DiscardException extends RuntimeException {
public DiscardException(String message) {
super(message);
}
}
private static class WorkerTask extends Thread {
private volatile TaskState taskState = TaskState.FREE;
public WorkerTask(ThreadGroup group, String name) {
super(group, name);
}
public TaskState getTaskState() {
return this.taskState;
}
public void run() {
OUTER:
while (this.taskState != TaskState.DEAD) {
Runnable runnable;
synchronized (TASK_QUEUE) {
while (TASK_QUEUE.isEmpty()) {
try {
taskState = TaskState.BLOCKED;
TASK_QUEUE.wait();
} catch (InterruptedException e) {
break OUTER;
}
}
runnable = TASK_QUEUE.removeFirst();
}
if (runnable != null) {
taskState = TaskState.RUNNING;
runnable.run();
taskState = TaskState.FREE;
}
}
}
public void close() {
this.taskState = TaskState.DEAD;
}
}
public static void main(String[] args) throws InterruptedException {
SimpleThreadPool threadPool = new SimpleThreadPool();
for (int i = 0; i < 40; i++) {
int finalI = i;
threadPool.submit(() -> {
System.out.println("The runnable " + finalI + " be serviced by " + Thread.currentThread() + " start.");
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("The runnable " + finalI + " be serviced by " + Thread.currentThread() + " finished.");
});
System.out.println("======================");
}
Thread.sleep(4000);
threadPool.shutdown();
threadPool.submit(()->System.out.println("============="));
}
}
======================
======================
The runnable 0 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] start.
======================
The runnable 2 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] start.
The runnable 1 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] start.
The runnable 3 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] start.
======================
======================
======================
The runnable 5 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] start.
The runnable 6 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] start.
======================
======================
The runnable 7 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] start.
The runnable 4 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] start.
The runnable 8 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] start.
======================
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======================
The runnable 9 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] start.
======================
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The runnable 7 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] finished.
The runnable 10 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] start.
The runnable 6 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] finished.
The runnable 11 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] start.
The runnable 3 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] finished.
The runnable 12 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] start.
The runnable 5 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] finished.
The runnable 0 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] finished.
The runnable 14 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] start.
The runnable 2 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] finished.
The runnable 15 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] start.
The runnable 8 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] finished.
The runnable 16 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] start.
The runnable 4 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] finished.
The runnable 17 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] start.
The runnable 9 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] finished.
The runnable 1 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] finished.
The runnable 19 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] start.
The runnable 18 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] start.
The runnable 13 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] start.
The runnable 10 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] finished.
The runnable 14 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] finished.
The runnable 11 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] finished.
The runnable 22 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] start.
The runnable 12 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] finished.
The runnable 21 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] start.
The runnable 20 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] start.
The runnable 23 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] start.
The runnable 15 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] finished.
The runnable 24 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] start.
The runnable 17 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] finished.
The runnable 18 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] finished.
The runnable 25 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] start.
The runnable 13 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] finished.
The runnable 16 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] finished.
The runnable 19 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] finished.
The runnable 28 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] start.
The runnable 27 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] start.
The runnable 26 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] start.
The runnable 29 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] start.
The runnable 22 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] finished.
The runnable 30 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] start.
The runnable 20 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] finished.
The runnable 31 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] start.
The runnable 23 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] finished.
The runnable 21 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] finished.
The runnable 32 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] start.
The runnable 33 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] start.
The runnable 24 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] finished.
The runnable 34 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] start.
The runnable 25 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] finished.
The runnable 29 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] finished.
The runnable 27 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] finished.
The runnable 35 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] start.
The runnable 26 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] finished.
The runnable 28 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] finished.
The runnable 39 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] start.
The runnable 38 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] start.
The runnable 37 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] start.
The runnable 36 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] start.
The runnable 33 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] finished.
The runnable 32 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] finished.
The runnable 31 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] finished.
The runnable 30 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] finished.
The runnable 39 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] finished.
The runnable 34 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] finished.
The runnable 38 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] finished.
The runnable 36 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] finished.
The runnable 37 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] finished.
The runnable 35 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] finished.
The thread pool disposed.
Exception in thread "main" java.lang.IllegalStateException: The thread pool already destroy and not allow submit task.
at chapter13.SimpleThreadPool.submit(SimpleThreadPool.java:48)
at chapter13.SimpleThreadPool.main(SimpleThreadPool.java:176)
线程池本身就是一个线程：
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
public class SimpleThreadPool extends Thread {
public final static DiscardPolicy DEFAULT_DISCARD_POLICY = () -> {
throw new DiscardException("Discard This Task.");
};
//设置线程任务最大值
private final static int DEFAULT_TASK_QUEUE_SIZE = 2000;
/**
* 任务队列
*/
private final static LinkedList<Runnable> TASK_QUEUE = new LinkedList<>();
private final static String THREAD_PREFIX = "SIMPLE_THREAD_POOL-";
/**
* 线程组
*/
private final static ThreadGroup GROUP = new ThreadGroup("Pool_Group");
private final static List<WorkerTask> THREAD_QUEUE = new ArrayList<>();
private static volatile int seq = 0;
//队列大小
private final int queueSize;
private final DiscardPolicy discardPolicy;
private int size;
private volatile boolean destroy = false;
/**
* 最小线程数
*/
private int min;
/**
* 最大线程数
*/
private int max;
/**
* 线程活跃数
*/
private int active;
public SimpleThreadPool() {
this(4, 8, 12, DEFAULT_TASK_QUEUE_SIZE, DEFAULT_DISCARD_POLICY);
}
public SimpleThreadPool(int min, int active, int max, int queueSize, DiscardPolicy discardPolicy) {
this.min = min;
this.active = active;
this.max = max;
this.queueSize = queueSize;
this.discardPolicy = discardPolicy;
init();
}
private void init() {
for (int i = 0; i < this.min; i++) {
createWorkTask();
}
/**
* 默认线程大小为最小线程数
*/
this.size = min;
this.start();
}
public void submit(Runnable runnable) {
if (destroy) throw new IllegalStateException("The thread pool already destroy and not allow submit task.");
synchronized (TASK_QUEUE) {
if (TASK_QUEUE.size() > queueSize) discardPolicy.discard();
TASK_QUEUE.addLast(runnable);
TASK_QUEUE.notifyAll();
}
}
private void createWorkTask() {
WorkerTask task = new WorkerTask(GROUP, THREAD_PREFIX + (seq++));
task.start();
THREAD_QUEUE.add(task);
}
public void shutdown() throws InterruptedException {
while (!TASK_QUEUE.isEmpty()) {
Thread.sleep(50);
}
//加锁 对线程进行操作唯一
synchronized (THREAD_QUEUE) {
int initVal = THREAD_QUEUE.size();
while (initVal > 0) {
for (WorkerTask task : THREAD_QUEUE) {
if (task.getTaskState() == TaskState.BLOCKED) {
task.interrupt();
task.close();
initVal--;
} else {
Thread.sleep(10);
}
}
}
}
this.destroy = true;
System.out.println("The thread pool disposed.");
}
public int getSize() {
return size;
}
public int getQueueSize() {
return queueSize;
}
public boolean isDestory() {
return this.destroy;
}
public int getMin() {
return min;
}
public int getMax() {
return max;
}
public int getActive() {
return active;
}
@Override
public void run() {
while (!destroy) {
System.out.printf("Pool#Min:%d,Active:%d,Max:%d,Current:%d,QueueSize:%d\n",
this.min, this.active, this.max, this.size, TASK_QUEUE.size());
try {
Thread.sleep(5_000L);
//让线程池以最大活跃数运行
if (TASK_QUEUE.size() > active && size < active) {
for (int i = size; i < active; i++) {
createWorkTask();
}
System.out.println("The pool incremented to active.");
size = active;
//让线程池以最大线程数运行
} else if (TASK_QUEUE.size() > max && size < max) {
for (int i = size; i < max; i++) {
createWorkTask();
}
System.out.println("The pool incremented to max.");
//让size以最大活跃数运行
size = max;
}
/**
* 释放线程
* 加锁 防止submit的时候 有其他的操作
*/
synchronized (TASK_QUEUE) {
if (TASK_QUEUE.isEmpty() && size > active) {
System.out.println("==========Reduce=========");
int releaseSize = size - active;
for (Iterator<WorkerTask> it = THREAD_QUEUE.iterator(); it.hasNext(); ) {
if (releaseSize <= 0) {
break;
}
WorkerTask task = it.next();
task.close();
task.interrupt();
it.remove();
releaseSize--;
}
size = active;
}
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
private enum TaskState {
FREE, RUNNING, BLOCKED, DEAD
}
public interface DiscardPolicy {
void discard() throws DiscardException;
}
public static class DiscardException extends RuntimeException {
public DiscardException(String message) {
super(message);
}
}
private static class WorkerTask extends Thread {
private volatile TaskState taskState = TaskState.FREE;
public WorkerTask(ThreadGroup group, String name) {
super(group, name);
}
public TaskState getTaskState() {
return this.taskState;
}
public void run() {
OUTER:
while (this.taskState != TaskState.DEAD) {
Runnable runnable;
synchronized (TASK_QUEUE) {
while (TASK_QUEUE.isEmpty()) {
try {
taskState = TaskState.BLOCKED;
TASK_QUEUE.wait();
} catch (InterruptedException e) {
System.out.println("Closed.");
break OUTER;
}
}
runnable = TASK_QUEUE.removeFirst();
}
if (runnable != null) {
taskState = TaskState.RUNNING;
runnable.run();
taskState = TaskState.FREE;
}
}
}
public void close() {
this.taskState = TaskState.DEAD;
}
}
public static void main(String[] args) throws InterruptedException {
SimpleThreadPool threadPool = new SimpleThreadPool();
for (int i = 0; i < 40; i++) {
int finalI = i;
threadPool.submit(() -> {
System.out.println("The runnable " + finalI + " be serviced by " + Thread.currentThread() + " start.");
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("The runnable " + finalI + " be serviced by " + Thread.currentThread() + " finished.");
});
//System.out.println("======================");
}
// Thread.sleep(4000);
// threadPool.shutdown();
// threadPool.submit(() -> System.out.println("============="));
}
}
Pool#Min:4,Active:8,Max:12,Current:4,QueueSize:0 The runnable 2 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] start. The runnable 3 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] start. The runnable 1 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] start. The runnable 0 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] start. The runnable 3 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] finished. The runnable 4 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] start. The runnable 1 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] finished. The runnable 5 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] start. The runnable 2 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] finished. The runnable 6 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] start. The runnable 0 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] finished. The runnable 7 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] start. The runnable 8 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] start. The runnable 9 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] start. The pool incremented to active. The runnable 10 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] start. Pool#Min:4,Active:8,Max:12,Current:8,QueueSize:29 The runnable 11 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] start. The runnable 4 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] finished. The runnable 12 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] start. The runnable 7 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] finished. The runnable 13 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] start. The runnable 5 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] finished. The runnable 6 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] finished. The runnable 14 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] start. The runnable 15 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] start. The runnable 9 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] finished. The runnable 16 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] start. The runnable 8 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] finished. The runnable 10 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] finished. The runnable 18 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] start. The runnable 17 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] start. The runnable 11 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] finished. The runnable 19 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] start. The runnable 14 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] finished. The runnable 20 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] start. The runnable 15 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] finished. The runnable 13 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] finished. The runnable 22 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] start. The runnable 12 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] finished. The runnable 21 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] start. The runnable 23 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] start. The runnable 24 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] start. The runnable 25 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] start. The runnable 26 be serviced by Thread[SIMPLE_THREAD_POOL-10,5,Pool_Group] start. The pool incremented to max. Pool#Min:4,Active:8,Max:12,Current:12,QueueSize:13 The runnable 27 be serviced by Thread[SIMPLE_THREAD_POOL-11,5,Pool_Group] start. The runnable 18 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] finished. The runnable 19 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] finished. The runnable 29 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] start. The runnable 16 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] finished. The runnable 30 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] start. The runnable 17 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] finished. The runnable 31 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] start. The runnable 28 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] start. The runnable 20 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] finished. The runnable 32 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] start. The runnable 23 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] finished. The runnable 33 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] start. The runnable 21 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] finished. The runnable 22 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] finished. The runnable 34 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] start. The runnable 35 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] start. The runnable 24 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] finished. The runnable 25 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] finished. The runnable 36 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] start. The runnable 26 be serviced by Thread[SIMPLE_THREAD_POOL-10,5,Pool_Group] finished. The runnable 37 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] start. The runnable 38 be serviced by Thread[SIMPLE_THREAD_POOL-10,5,Pool_Group] start. The runnable 27 be serviced by Thread[SIMPLE_THREAD_POOL-11,5,Pool_Group] finished. The runnable 39 be serviced by Thread[SIMPLE_THREAD_POOL-11,5,Pool_Group] start. The runnable 29 be serviced by Thread[SIMPLE_THREAD_POOL-7,5,Pool_Group] finished. The runnable 31 be serviced by Thread[SIMPLE_THREAD_POOL-4,5,Pool_Group] finished. The runnable 30 be serviced by Thread[SIMPLE_THREAD_POOL-5,5,Pool_Group] finished. The runnable 28 be serviced by Thread[SIMPLE_THREAD_POOL-6,5,Pool_Group] finished. ==========Reduce========= The runnable 35 be serviced by Thread[SIMPLE_THREAD_POOL-3,5,Pool_Group] finished. The runnable 32 be serviced by Thread[SIMPLE_THREAD_POOL-2,5,Pool_Group] finished. The runnable 33 be serviced by Thread[SIMPLE_THREAD_POOL-0,5,Pool_Group] finished. The runnable 34 be serviced by Thread[SIMPLE_THREAD_POOL-1,5,Pool_Group] finished. Closed. Pool#Min:4,Active:8,Max:12,Current:8,QueueSize:0 Closed. Closed. Closed. The runnable 38 be serviced by Thread[SIMPLE_THREAD_POOL-10,5,Pool_Group] finished. The runnable 36 be serviced by Thread[SIMPLE_THREAD_POOL-8,5,Pool_Group] finished. The runnable 37 be serviced by Thread[SIMPLE_THREAD_POOL-9,5,Pool_Group] finished. The runnable 39 be serviced by Thread[SIMPLE_THREAD_POOL-11,5,Pool_Group] finished. Pool#Min:4,Active:8,Max:12,Current:8,QueueSize:0 Pool#Min:4,Active:8,Max:12,Current:8,QueueSize:0 Pool#Min:4,Active:8,Max:12,Current:8,QueueSize:0
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