spring自带线程池使用不当导致的死锁问题

    @Service
public class DelayService {
    @Async
    public CompletableFuture<String> delayFoo(String v) {
        try {
            Thread.sleep(1000L);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(v + " runs in thread: " + Thread.currentThread().getName());
        return CompletableFuture.completedFuture(v);
    }
}

        @Bean
    public Executor taskExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(2);
        executor.setMaxPoolSize(2);
        executor.setQueueCapacity(10);
        executor.setThreadNamePrefix("taskExecutor-");
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        executor.setWaitForTasksToCompleteOnShutdown(true);
        executor.initialize();
        return executor;
    }
}

        while (true) {
        try {
            CompletableFuture.runAsync(
                () -> CompletableFuture.allOf(Stream.of("1", "2", "3")
                .map(v -> delayService.delayFoo(v))
                .toArray(CompletableFuture[]::new)) // 将数组中的任务提交到线程池中
                .join(), taskExecutor); // 通过join方法等待任务完成
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

    priority:5 - threadId:0x00007f7f8eb36800 - nativeId:0x3e03 - nativeId (decimal):15875 - state:WAITING
stackTrace:
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000007961fe548> (a java.util.concurrent.CompletableFuture$Signaller)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.CompletableFuture$Signaller.block(CompletableFuture.java:1693)
at java.util.concurrent.ForkJoinPool.managedBlock(ForkJoinPool.java:3323)
at java.util.concurrent.CompletableFuture.waitingGet(CompletableFuture.java:1729)
at java.util.concurrent.CompletableFuture.join(CompletableFuture.java:1934)