一个非常离奇古怪的问题

2012-09-04 05:25:54 277 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Quarkus在当前实际应用开发中遇到的问题与缺点我在最近了解到Quarkus框架与Graalvm之后，在实际项目中深入使用了一下，并不是像网上和Spring全家桶对比的那么适合，特别某些方面甚至不如Spring。当然，优点还是有的，就像网上所说的那样，内存占用低，启动快，native -image，但是，他的缺点同样也更加明显： 1.缺乏资料与文档支持在开发中，老规矩从官网GET STARTED，照着手册（https://quarkus.io/guides/）开始，照着搭建，没问题。但是，对于一些针对性问题对文档搜... 阅读详情



if (isFirstInitialization) {

                packetWriter = new PacketWriter(this);

                packetReader = new PacketReader(this);



                // If debugging is enabled, we should start the thread that will listen for

                // all packets and then log them.

                if (config.isDebuggerEnabled()) {

                    addPacketListener(debugger.getReaderListener(), null);

                    if (debugger.getWriterListener() != null) {

                        addPacketSendingListener(debugger.getWriterListener(), null);

                    }

                }

            }

            else {

                packetWriter.init();

                packetReader.init();

            }



            // Start the packet writer. This will open a XMPP stream to the server

            packetWriter.startup();

            // Start the packet reader. The startup() method will block until we

            // get an opening stream packet back from server.

            packetReader.startup();



            // Make note of the fact that we're now connected.

            connected = true;



            // Start keep alive process (after TLS was negotiated - if available)

            packetWriter.startKeepAliveProcess();



Exception in thread "Thread-33" java.lang.NullPointerException

	at org.jivesoftware.smack.XMPPConnection.initConnection(XMPPConnection.java:595)

	at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:548)

	at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:974)

	at net.sf.kraken.protocols.xmpp.XMPPSession$1.run(XMPPSession.java:277)

	at java.lang.Thread.run(Thread.java:619)

// Start keep alive process (after TLS was negotiated - if available)
packetWriter.startKeepAliveProcess();

在这一行中出现了空指针错误,太古怪了.在这句代码之前,还有很多使用到packetWriter的地方呢,并且该对象是在上面被创建的.
这个问题并不是必现,只是当大并发的时候会出现,不知其原因,想请高手解答.

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