销售订单打开解锁界面卡死

目前开发了一个销售订单择料系统，择完锁库，碰到两个问题，1.择料之后进行锁库，但是库存id会发生变化 导致出问题，但是没法复现，所以想问问什么情况库存id会发生变化。2.有几张销售订单打开解锁界面卡死 ，报错信息如下：
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:150)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1584)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:174)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:168)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:848)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:106)
at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:495)
at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:433)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:877)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1089)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:618)
at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:59)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at org.apache.commons.httpclient.methods.EntityEnclosingMethod.writeRequestBody(EntityEnclosingMethod.java:506)
at org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMethodBase.java:2114)
at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1096)
at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398)
at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
at com.kingdee.eas.base.uiframe.client.util.CloudUtil.getStrategy(CloudUtil.java:53)
at com.kingdee.eas.base.uiframe.client.util.CloudUtil.getPeriod(CloudUtil.java:82)
at com.kingdee.eas.base.uiframe.client.util.CloudUtil.getSendPeriod(CloudUtil.java:100)
at com.kingdee.eas.base.uiframe.client.util.SendStatisticIdleListener.getLogStrategy(SendStatisticIdleListener.java:128)
at com.kingdee.eas.base.uiframe.client.util.SendStatisticIdleListener.isRightTime(SendStatisticIdleListener.java:80)
at com.kingdee.eas.base.uiframe.client.util.SendStatisticIdleListener.doIdleThing(SendStatisticIdleListener.java:56)
at com.kingdee.eas.base.usermonitor.client.IdleListenerHelper.doIdleThing(IdleListenerHelper.java:33)
at com.kingdee.eas.base.usermonitor.client.UserMonitorClientThread$1.run(UserMonitorClientThread.java:96)
at java.lang.Thread.run(Thread.java:595)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:221)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:145)
at sun.security.validator.Validator.validate(Validator.java:203)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:172)
at com.sun.net.ssl.internal.ssl.JsseX509TrustManager.checkServerTrusted(SSLContextImpl.java:320)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:841)
... 25 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:236)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:194)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:216)
... 30 more
[2015-11-06 09:43:22,220 ERROR]
com.kingdee.bos.json.JSONException: JSONObject["sendPeriod"] not found.
at com.kingdee.bos.json.JSONObject.get(JSONObject.java:441)
at com.kingdee.bos.json.JSONObject.getString(JSONObject.java:612)
at com.kingdee.eas.base.uiframe.client.util.CloudUtil.getPeriod(CloudUtil.java:85)
at com.kingdee.eas.base.uiframe.client.util.CloudUtil.getSendPeriod(CloudUtil.java:100)
at com.kingdee.eas.base.uiframe.client.util.SendStatisticIdleListener.getLogStrategy(SendStatisticIdleListener.java:128)
at com.kingdee.eas.base.uiframe.client.util.SendStatisticIdleListener.isRightTime(SendStatisticIdleListener.java:80)
at com.kingdee.eas.base.uiframe.client.util.SendStatisticIdleListener.doIdleThing(SendStatisticIdleListener.java:56)
at com.kingdee.eas.base.usermonitor.client.IdleListenerHelper.doIdleThing(IdleListenerHelper.java:33)
at com.kingdee.eas.base.usermonitor.client.UserMonitorClientThread$1.run(UserMonitorClientThread.java:96)
at java.lang.Thread.run(Thread.java:595)