import org.jctools.queues.SpscGrowableArrayQueue;

/**

Created by yangyi438 on 2018/9/2.
*/
public class TestError2 {
public static void main(String[] args) {
int q = 0;
SpscGrowableArrayQueue queue = new SpscGrowableArrayQueue(8, 32);
for (int i = 0; i < 33; i++) {
queue.offer(q++);
}
for (int i = 0; i < 7; i++) {
Integer poll = queue.poll();
}
for (int i = 0; i < 14; i++) {
Integer poll = queue.poll();
}
for (int i = 0; i < 80; i++) {
queue.offer(q++);
}
int counot = 0;
while (true) {
Integer poll = queue.poll();
if (poll != null) {
counot++;
} else {
break;
```
     }
 }
 if (counot > 32) {
     throw new Error();
 }
```
}
}

this code is

    <dependency>
        <groupId>org.jctools</groupId>
        <artifactId>jctools-core</artifactId>
        <version>2.1.2</version>
    </dependency>

I debug carefully for reasons
It looks like index is the wrong calculation
There will be a value of null in the array
I forgot the exact reason. It's been months since I found out
You can debug see detail and fix it

Size of queue may more then max size +1 #216

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