Java 错误堆栈跟踪累积

Question

我开发 smpp 客户端，当我一次又一次收到 InvalidResponseException 时，我的堆栈跟踪增加:

org.jsmpp.extra.NegativeResponseException: Negative response 0000000f found
    at org.jsmpp.session.AbstractSession.validateResponse(AbstractSession.java:162)
    at org.jsmpp.session.AbstractSession.executeSendCommand(AbstractSession.java:203)
    at org.jsmpp.session.SMPPSession.sendBind(SMPPSession.java:143)
    at org.jsmpp.session.SMPPSession.connectAndBind(SMPPSession.java:86)
    at com.sms.client.gw.Gateway.newSession(Gateway.java:107)
    at com.sms.client.gw.Gateway.getSession(Gateway.java:81)
    at com.sms.client.gw.Gateway.access$300(Gateway.java:33)
    at com.sms.client.gw.Gateway$SessionStateListenerImpl.onStateChange(Gateway.java:196)
    at org.jsmpp.session.AbstractSessionContext.fireStateChanged(AbstractSessionContext.java:69)
    at org.jsmpp.session.SMPPSessionContext.changeState(SMPPSessionContext.java:44)
    at org.jsmpp.session.AbstractSessionContext.close(AbstractSessionContext.java:58)
    at org.jsmpp.session.SMPPSessionContext.close(SMPPSessionContext.java:10)
    at org.jsmpp.session.AbstractSession.close(AbstractSession.java:141)

然后堆栈跟踪增加:

org.jsmpp.extra.NegativeResponseException: Negative response 0000000f found
    at org.jsmpp.session.AbstractSession.validateResponse(AbstractSession.java:162)
    at org.jsmpp.session.AbstractSession.executeSendCommand(AbstractSession.java:203)
    at org.jsmpp.session.SMPPSession.sendBind(SMPPSession.java:143)
    at org.jsmpp.session.SMPPSession.connectAndBind(SMPPSession.java:86)
    at com.sms.client.gw.Gateway.newSession(Gateway.java:107)
    at com.sms.client.gw.Gateway.getSession(Gateway.java:81)
    at com.sms.client.gw.Gateway.access$300(Gateway.java:33)
    at com.sms.client.gw.Gateway$SessionStateListenerImpl.onStateChange(Gateway.java:196)
    at org.jsmpp.session.AbstractSessionContext.fireStateChanged(AbstractSessionContext.java:69)
    at org.jsmpp.session.SMPPSessionContext.changeState(SMPPSessionContext.java:44)
    at org.jsmpp.session.AbstractSessionContext.close(AbstractSessionContext.java:58)
    at org.jsmpp.session.SMPPSessionContext.close(SMPPSessionContext.java:10)
    at org.jsmpp.session.AbstractSession.close(AbstractSession.java:141)
    at org.jsmpp.session.SMPPSession.connectAndBind(SMPPSession.java:100)
    at com.sms.client.gw.Gateway.newSession(Gateway.java:107)
    at com.sms.client.gw.Gateway.getSession(Gateway.java:81)
    at com.sms.client.gw.Gateway.access$300(Gateway.java:33)
    at com.sms.client.gw.Gateway$SessionStateListenerImpl.onStateChange(Gateway.java:196)
    at org.jsmpp.session.AbstractSessionContext.fireStateChanged(AbstractSessionContext.java:69)
    at org.jsmpp.session.SMPPSessionContext.changeState(SMPPSessionContext.java:44)
    at org.jsmpp.session.AbstractSessionContext.close(AbstractSessionContext.java:58)
    at org.jsmpp.session.SMPPSessionContext.close(SMPPSessionContext.java:10)
    at org.jsmpp.session.AbstractSession.close(AbstractSession.java:141)
    at org.jsmpp.session.SMPPSession$EnquireLinkSender.run(SMPPSession.java:394)

越来越大。怎么可能呢？为什么堆栈跟踪会累积？ 在响应之间，我将 SMPPSessionContext 变量设置为 null，并将 SMPPSession 设置为 null

Answer 1

据我所知，有一个尝试打开新 session 的 close session 事件的监听器。同时，connectAndBind 方法在检测到失败时会尝试关闭 session ，从而触发另一个递归循环。因此，停止这样做，停止尝试在 close 事件回调中打开 session (这是您的类 Gateway$SessionStateListenerImpl)。