Creating Token and passing parmaters to openDocument.jsp

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Hi All,

I'm using the following code to call the openDocument.jsp to open the crystal report.

But after approx. 20 mins users are getting error: An error has occured. An argument has an invalid value 0.

Logs: com.businessobjects.crystalreports.reportsourcebridge.RSBridgeCMSLogonException: Not a valid logon token. (FWB 00003)

Please advise if the below method is correct createWCAToken and also advise if I need to call releaseToken.

Extract from the code:

<%@ page language="java" contentType="text/html; charset=UTF-8"%>
<%@ page import="com.crystaldecisions.sdk.exception.SDKException" %>
<%@ page import="com.crystaldecisions.sdk.framework.CrystalEnterprise" %>
<%@ page import="com.crystaldecisions.sdk.framework.IEnterpriseSession" %>
<%@ page import="com.crystaldecisions.sdk.framework.ISessionMgr" %>
<%@ page import="com.crystaldecisions.sdk.occa.infostore.*"%>
<%@ page import="com.crystaldecisions.sdk.occa.managedreports.*" %>
<%@ page import="com.crystaldecisions.sdk.occa.security.ILogonTokenMgr" %>
<%
ISessionMgr sessionMgr = CrystalEnterprise.getSessionMgr();
IEnterpriseSession es = null;

es = sessionMgr.logon(logonid, logonpass, "bobiserver", "secEnterprise");

ceToken = es.getLogonTokenMgr().createWCAToken("", 100, 100);
URLQueryString = "../BOE/OpenDocument/opendoc/openDocument.jsp?sDocName=" + sDocName + "&sOutputFormat=" + sOutputFormat + paramstr + "&token=" + ceToken;

---

%>

Platform: BO4.0 SP2