Hi,
I am getting the "ConcurrentModificationException" in call center while callestablished...exception shown as below.
============================================================
2005-03-18 04:21:25,203 -0600 ERROR [ApplicationServiceManager$ServerMessageHandler] - handle(CallEstablishedEvent) Exception: java.util.ConcurrentModificationException
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry()Ljava.util.HashMap$Entry;(Optimized Method)
at java.util.HashMap$EntryIterator.next()Ljava.lang.Object;(Optimized Method)
at com.rockwell.firstpoint.uwa.urlmapping.URLMappingManager.mapToURL(Lcom.rockwell.firstpoint.uwa.xmlMessaging.CallEstablishedEvent
Ljava.lang.String;(Optimized Method)
at com.rockwell.firstpoint.uwa.service.manager.ApplicationServiceManager$ServerMessageHandler.handle(Lcom.rockwell.firstpoint.uwa.xmlMessaging.CallEstablishedEvent
V(Optimized Method)
at com.rockwell.firstpoint.uwa.xmlMessaging.dispatcher.CallEstablishedEventDispatcher.dispatch(Ljava.lang.Object;Lcom.rockwell.firstpoint.uwa.xmlMessaging.IUWAMessageHandler
V(Optimized Method)
at com.rockwell.firstpoint.uwa.xmlMessaging.dispatcher.XMLMessageDispatcher.dispatch(Lcom.rockwell.firstpoint.uwa.xmlMessaging.UWAMessage;Lcom.rockwell.firstpoint.uwa.xmlMessaging.IUWAMessageHandler
V(Optimized Method)
at com.rockwell.firstpoint.uwa.service.manager.ApplicationServiceManager$ServerMessageHandler.run()V(ApplicationServiceManager.java:652)
at java.lang.Thread.run()V(Unknown Source)
at java.lang.Thread.startThreadFromVM(Ljava.lang.Thread
V(Unknown Source)
2005-03-18 06:12:17,343 -0600 ERROR [Console] - Failed to queue message com.rockwell.firstpoint.uwa.xmlMessaging.DisplayEvent, queue depth = 30, queue capacity = 30
2005-03-18 06:12:17,593 -0600 ERROR [Console] - Failed to queue message com.rockwell.firstpoint.uwa.xmlMessaging.CallEstablishedEvent, queue depth = 30, queue capacity = 30
2005-03-18 06:12:17,843 -0600 ERROR [Console] - Failed to queue message com.rockwell.firstpoint.uwa.xmlMessaging.DisplayEvent, queue depth = 30, queue capacity = 30
2005-03-18 06:12:18,093 -0600 ERROR [Console] - Failed to queue message com.rockwell.firstpoint.uwa.xmlMessaging.LampEvent, queue depth = 30, queue capacity = 30
2005-03-18 06:12:18,343 -0600 ERROR [Console] - Failed to queue message com.rockwell.firstpoint.uwa.xmlMessaging.DisplayEvent, queue depth = 30, queue capacity = 30
2005-03-18 10:06:25,500 -0600 ERROR [BroadcastMessageProvider] - error refreshing the cache at 20050318160525+0000 due to com.rockwell.firstpoint.uwa.database.dao.DataAccessException: Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.io.EOFException
STACKTRACE:
java.io.EOFException
at com.mysql.jdbc.MysqlIO.readFully(Ljava.io.InputStream;[BII)I(MysqlIO.java:1845)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(Lcom.mysql.jdbc.Buffer
Lcom.mysql.jdbc.Buffer;(MysqlIO.java:2292)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(I)Lcom.mysql.jdbc.Buffer;(MysqlIO.java:2788)
at com.mysql.jdbc.MysqlIO.sendCommand(ILjava.lang.String;Lcom.mysql.jdbc.Buffer;ZLjava.lang.String
Lcom.mysql.jdbc.Buffer;(MysqlIO.java:1534)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(Lcom.mysql.jdbc.Statement;Ljava.lang.String;Ljava.lang.String;Lcom.mysql.jdbc.Buffer;ILcom.mysql.jdbc.Connection;IIZLjava.lang.String;Z)Lcom.mysql.jdbc.ResultSet;(MysqlIO.java:1625)
at com.mysql.jdbc.Connection.execSQL(Lcom.mysql.jdbc.Statement;Ljava.lang.String;ILcom.mysql.jdbc.Buffer;IIZZLjava.lang.String;ZB)Lcom.mysql.jdbc.ResultSet;(Connection.java:2291)
at com.mysql.jdbc.Connection.execSQL(Lcom.mysql.jdbc.Statement;Ljava.lang.String;ILcom.mysql.jdbc.Buffer;IIZZLjava.lang.String;Z)Lcom.mysql.jdbc.ResultSet;(Connection.java:2226)
at com.mysql.jdbc.Statement.executeQuery(Ljava.lang.String
Ljava.sql.ResultSet;(Statement.java:1159)
at com.rockwell.firstpoint.uwa.database.dao.MySqlBroadcastMessageDAO.getAllMsgIds()Ljava.util.Vector;(MySqlBroadcastMessageDAO.java:667)
at com.rockwell.firstpoint.uwa.service.provider.BroadcastMessageProvider$MessageCache.removeDeletedMsgIds()V(BroadcastMessageProvider.java:748)
at com.rockwell.firstpoint.uwa.service.provider.BroadcastMessageProvider$MessageCache.run()V(Optimized Method)
at EDU.oswego.cs.dl.util.concurrent.ClockDaemon$RunLoop.run()V(ClockDaemon.java:364)
at java.lang.Thread.run()V(Unknown Source)
at java.lang.Thread.startThreadFromVM(Ljava.lang.Thread
V(Unknown Source)
** END NESTED EXCEPTION **
2005-03-18 10:06:25,500 -0600 ERROR [SystemStatusManager] - Database is not available
===========================================================
for the part of the below "ApplicationServiceManager" class code
############################################################
public void handle(CallEstablishedEvent callEstablishedEvent) throws MessageHandlerException {
try {
agentManager.handleMessage(callEstablishedEvent);
callManager.handleMessage(callEstablishedEvent);
statusManager.incrementCallCounter();
/* Attach custom properties if they exist */
String callId = callEstablishedEvent.getCallId();
CustomProperty[] props = callManager.getCustomProperties(callId);
if (props != null && props.length > 0) {
if (serverLog.isDebugEnabled()) {
serverLog.debug("Call(" + callEstablishedEvent.getCallId() + ") attaching " + props.length + " customProperties");
}
callEstablishedEvent.setCustomProperty(props);
}
/*
* Map the call established to a URL for screen-pop
*/
try {
String mappedURL = urlMappingManager.mapToURL(callEstablishedEvent);
if (serverTrace.isDebugEnabled()) {
logTraceServer("handle(CallEstablishedEvent) mapped to URL: " + mappedURL);
}
} catch (NullPointerException e1) {
serverLog.error("handle(CallEstablishedEvent) mapToURL Failed: " + e1, e1);
}
/* send the call established to the user */
sendMessageToClient(callEstablishedEvent);
} catch (Exception e) {
serverLog.error("handle(CallEstablishedEvent) Exception: " + e, e);
}
}
###########################################################
please give me some solution or suggest me how n why its happend somewhat clearly as soon as possible...... in an advanced Thanks if anybody gives the solution.
Regards,
Ravi Babu
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