Grizzly Graceful Shutdown抛出InterruptedException

Question

我正在使用泽西服务器并希望确保当服务器终止时（通常通过SIGTERM），所有当前正在运行的请求都会正常完成。如果音量足够高，如果我不这样做，可能会有数据丢失。

所以我试图从运行时关闭钩子中调用HttpServer。shutdown（）。

我认为它正常工作，除了一个问题。使用InterruptedException调用CompletionHandler。failed（）。 shutdownNow在堆栈跟踪中，因此在关闭本身完成后似乎只发生了一些逻辑错误：

java.lang.InterruptedException
    at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1302)
    at org.glassfish.grizzly.impl.SafeFutureImpl$Sync.innerGet(SafeFutureImpl.java:354)
    at org.glassfish.grizzly.impl.SafeFutureImpl.get(SafeFutureImpl.java:265)
    at org.glassfish.grizzly.impl.SafeFutureImpl.notifyCompletionHandlers(SafeFutureImpl.java:181)
    at org.glassfish.grizzly.impl.SafeFutureImpl.done(SafeFutureImpl.java:287)
    at org.glassfish.grizzly.impl.SafeFutureImpl$Sync.innerSet(SafeFutureImpl.java:383)
    at org.glassfish.grizzly.impl.SafeFutureImpl.result(SafeFutureImpl.java:112)
    at org.glassfish.grizzly.http.server.HttpServer.shutdownNow(HttpServer.java:458)
    at org.glassfish.grizzly.http.server.HttpServer$1.completed(HttpServer.java:384)
    at org.glassfish.grizzly.http.server.HttpServer$1.completed(HttpServer.java:376)
    at org.glassfish.grizzly.impl.SafeFutureImpl.notifyCompletionHandlers(SafeFutureImpl.java:199)
    at org.glassfish.grizzly.impl.SafeFutureImpl.done(SafeFutureImpl.java:287)
    at org.glassfish.grizzly.impl.SafeFutureImpl$Sync.innerSet(SafeFutureImpl.java:383)
    at org.glassfish.grizzly.impl.SafeFutureImpl.result(SafeFutureImpl.java:112)
    at org.glassfish.grizzly.http.server.NetworkListener$1$1.completed(NetworkListener.java:698)
    at org.glassfish.grizzly.http.server.NetworkListener$1$1.completed(NetworkListener.java:693)
    at org.glassfish.grizzly.http.server.HttpServerFilter.prepareForShutdown(HttpServerFilter.java:328)
    at org.glassfish.grizzly.http.server.NetworkListener$1.shutdownRequested(NetworkListener.java:704)
    at org.glassfish.grizzly.nio.GracefulShutdownRunner.run(GracefulShutdownRunner.java:93)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:744)

我把它归结为这个不使用平针织物或关闭钩子的测试用例。它非常简单并且发生了同样的异常（实际上，上面是从该程序的输出中复制的）：

public class Server {
    public static void main(String[] args) throws IOException {
        HttpServer server = HttpServer.createSimpleServer();
        server.start();
        try { Thread.sleep(5000); } catch (InterruptedException ex) {}
        shutdown(server);
    }
    public static void shutdown (HttpServer server) {
        final boolean [] done = {false};
        server.shutdown().addCompletionHandler(new EmptyCompletionHandler<HttpServer>() {
            public void completed (HttpServer arg) {
                System.out.println("Shutdown completed");
                done[0] = true;
            }
            public void failed (Throwable error) {
                System.out.println("Shutdown failed");
                error.printStackTrace(System.out);
                done[0] = true;
            }
        });
        while (!done[0]) {
            try { Thread.sleep(100); } catch (InterruptedException ex) {}
        }
        System.out.println("Goodbye");
    }
}

哪里有错误？