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Posted to users@tomcat.apache.org by Subhro Paul <su...@tcs.com> on 2016/02/01 13:50:26 UTC
Tomcat Server - Arraylist java.util.ConcurrentModificationException issue
Hi Team,
Our web application has a "header.jsp" which has 2 Arraylist on it. Each
ArrayList has more than 50 items inside. The code is to identify the
mobile device and requested page and transfer the call to mobile page
accordingly.
This code works fine once we restart the server and can continue running 2
months without any issue. But day by day it starts showing 500 error with
exception in log "ConcurrentModificationException". Below is the code
snippet of JSP code. My Question is why this issue is happening around 2
months? If we clear the temp file created by the server in work folder
then that will run for some time( 2- 3 days) and then again the same
exception starts occurring. I have identified one solution by moving the
JAVA code from JSP to JAVA file which worked good while perform testing
but client wants to know the root cause of the issue.
FYI, earlier we had Vector in place of Arraylist which gave trouble of
thread blocking due to synchronization. So, converting from Arraylist to
Vector will not be a good idea.
Exception:
java.util.ConcurrentModificationException
at
java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)
at java.util.ArrayList$Itr.next(ArrayList.java:831)
at
org.apache.jsp.includes.header_jsp.isHomePage(header_jsp.java:97)
Code Snippet:
<%!
private Set uas = new HashSet();
ArrayList<String> urlnames = new ArrayList<String>();
ArrayList<String> excludePathList = new ArrayList<String>();
private boolean haveToRedirect(HttpServletRequest request,
String stopMobiCookie) {
boolean doRedirect = false;
String userAgent = request.getHeader("User-Agent");
if (! stopMobiCookie.equals("yes") && userAgent != null &&
userAgent.length()!=0 && (userAgent.indexOf("UsableNet")==-1))
{
Iterator iter = uas.iterator();
while (iter.hasNext()) {
if (userAgent.indexOf((String)iter.next())!=-1) {
doRedirect = true;
break;
}
}
}
return doRedirect;
}
private boolean isHomePage(HttpServletRequest request){
Iterator<String> itr = urlnames.iterator();
String path = "";
while (itr.hasNext()) {
path = itr.next();
if
(request.getRequestURI().toString().equalsIgnoreCase(path)){
return true;
}
}
return false;
}
private boolean isExcludePath(HttpServletRequest request){
Iterator<String> itr = excludePathList.iterator();
String path = "";
while (itr.hasNext()) {
path = itr.next();
if (request.getRequestURI().startsWith(path) &&
!request.getRequestURI().startsWith("/info/contact.jsp")){
return true;
}
}
return false;
}
%>
<%
uas.add("Blazer");
uas.add("Danger hiptop");
uas.add("DoCoMo/");
uas.add("Ericsson");
uas.add("Googlebot-Mobile");
uas.add("MSN Mobile Proxy");
uas.add("Handheld");
uas.add("HTC_HD2_T58585 Opera");
uas.add("iPhone");
uas.add("iPod");
uas.add("Klondike");
uas.add("LG-");
uas.add("LGE-");
....... Arround 40 items
excludePathList.add("/business/my_account");
excludePathList.add("/business/save_energy");
excludePathList.add("/business/services");
excludePathList.add("/business/small_large_business");
excludePathList.add("/info/environment");
excludePathList.add("/info/about");
excludePathList.add("/info/index.jsp");
excludePathList.add("/info/ambassador.jsp");
........ more than 50 items
stopMobiCookie = some cookie code
boolean doRedirect = haveToRedirect((HttpServletRequest)request,
stopMobiCookie);
if(doRedirect){
boolean isHomePage =
isHomePage((HttpServletRequest)request);
boolean isExcludePath =
isExcludePath((HttpServletRequest)request);
session.setAttribute("mobile_agent", "yes");
if(!isHomePage && !isExcludePath){
String mobileServer = "mobile.server.com";
try{
mobileServer = mobileServer +
request.getRequestURI().toString();
}catch(Exception e){}
%>
<script type="text/javascript">
window.location
="<%=mobileServer%>";
</script>
<%
}
}
%>
Thanks & Regards
Subhro Paul
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Re: Tomcat Server - Arraylist java.util.ConcurrentModificationException
issue
Posted by "Terence M. Bandoian" <te...@tmbsw.com>.
On 2/2/2016 3:54 AM, Subhro Paul wrote:
> From: "Terence M. Bandoian" <te...@tmbsw.com>
> To: Tomcat Users List <us...@tomcat.apache.org>
> Date: 02/01/2016 07:58 PM
> Subject: Tomcat Server - Arraylist
> java.util.ConcurrentModificationException issue
>
>
>
> On 2/1/2016 6:50 AM, Subhro Paul wrote:
>> Hi Team,
>>
>> Our web application has a "header.jsp" which has 2 Arraylist on it.
> Each
>> ArrayList has more than 50 items inside. The code is to identify the
>> mobile device and requested page and transfer the call to mobile page
>> accordingly.
>>
>> This code works fine once we restart the server and can continue running
> 2
>> months without any issue. But day by day it starts showing 500 error
> with
>> exception in log "ConcurrentModificationException". Below is the code
>> snippet of JSP code. My Question is why this issue is happening around 2
>> months? If we clear the temp file created by the server in work folder
>> then that will run for some time( 2- 3 days) and then again the same
>> exception starts occurring. I have identified one solution by moving the
>> JAVA code from JSP to JAVA file which worked good while perform testing
>> but client wants to know the root cause of the issue.
>>
>> FYI, earlier we had Vector in place of Arraylist which gave trouble of
>> thread blocking due to synchronization. So, converting from Arraylist to
>> Vector will not be a good idea.
>>
>>
>> Exception:
>>
>> java.util.ConcurrentModificationException
>> at
>> java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)
>> at java.util.ArrayList$Itr.next(ArrayList.java:831)
>> at
>> org.apache.jsp.includes.header_jsp.isHomePage(header_jsp.java:97)
>>
>>
>> Code Snippet:
>>
>> <%!
>> private Set uas = new HashSet();
>> ArrayList<String> urlnames = new ArrayList<String>();
>> ArrayList<String> excludePathList = new ArrayList<String>();
>
> Hi, Subhro-
>
> Fields declared in a declarations section (<%! ... %>) are class
That should be "instance" variables.
>
> variables. If Tomcat uses a single JSP object to serve multiple
> requests, which I believe it does, access to these fields should be made
> thread safe. A simple solution would be to move the declarations of
> these fields to a scriptlet section (<% ... %>) which would result in
> them being local to the JSP service method. It isn't the most efficient
> way to go about it but it should solve the concurrent access problem
> you're seeing.
>
> -Terence Bandoian
> /http://www.tmbsw.com/
> /
>
>> private boolean haveToRedirect(HttpServletRequest request,
>> String stopMobiCookie) {
>> boolean doRedirect = false;
>>
>> String userAgent = request.getHeader("User-Agent");
>> if (! stopMobiCookie.equals("yes") && userAgent != null &&
>> userAgent.length()!=0 && (userAgent.indexOf("UsableNet")==-1))
>> {
>>
>> Iterator iter = uas.iterator();
>> while (iter.hasNext()) {
>> if (userAgent.indexOf((String)iter.next())!=-1)
> {
>> doRedirect = true;
>> break;
>>
>>
>> }
>> }
>> }
>> return doRedirect;
>> }
>>
>> private boolean isHomePage(HttpServletRequest request){
>> Iterator<String> itr = urlnames.iterator();
>> String path = "";
>> while (itr.hasNext()) {
>> path = itr.next();
>> if
>> (request.getRequestURI().toString().equalsIgnoreCase(path)){
>> return true;
>> }
>> }
>> return false;
>> }
>>
>> private boolean isExcludePath(HttpServletRequest request){
>> Iterator<String> itr = excludePathList.iterator();
>> String path = "";
>> while (itr.hasNext()) {
>> path = itr.next();
>> if (request.getRequestURI().startsWith(path)
> &&
>> !request.getRequestURI().startsWith("/info/contact.jsp")){
>> return true;
>> }
>> }
>> return false;
>> }
>>
>> %>
>>
>>
>> <%
>>
>> uas.add("Blazer");
>> uas.add("Danger hiptop");
>> uas.add("DoCoMo/");
>> uas.add("Ericsson");
>> uas.add("Googlebot-Mobile");
>> uas.add("MSN Mobile Proxy");
>> uas.add("Handheld");
>> uas.add("HTC_HD2_T58585 Opera");
>> uas.add("iPhone");
>> uas.add("iPod");
>> uas.add("Klondike");
>> uas.add("LG-");
>> uas.add("LGE-");
>> ....... Arround 40 items
>>
>>
>> excludePathList.add("/business/my_account");
>> excludePathList.add("/business/save_energy");
>> excludePathList.add("/business/services");
>> excludePathList.add("/business/small_large_business");
>> excludePathList.add("/info/environment");
>> excludePathList.add("/info/about");
>> excludePathList.add("/info/index.jsp");
>> excludePathList.add("/info/ambassador.jsp");
>> ........ more than 50 items
>>
>>
>> stopMobiCookie = some cookie code
>>
>> boolean doRedirect = haveToRedirect((HttpServletRequest)request,
>> stopMobiCookie);
>>
>>
>> if(doRedirect){
>> boolean isHomePage =
>> isHomePage((HttpServletRequest)request);
>> boolean isExcludePath =
>> isExcludePath((HttpServletRequest)request);
>>
>> session.setAttribute("mobile_agent", "yes");
>>
>> if(!isHomePage && !isExcludePath){
>> String mobileServer =
> "mobile.server.com";
>> try{
>> mobileServer = mobileServer +
>> request.getRequestURI().toString();
>> }catch(Exception e){}
>> %>
>> <script type="text/javascript">
>> window.location
>> ="<%=mobileServer%>";
>> </script>
>> <%
>> }
>> }
>> %>
>>
>>
>>
>> Thanks & Regards
>> Subhro Paul
>
> Hi Team,
>
> But why this error come after long time? this should have occurred at
> starting.
>
> Thanks & Regards,
> Subhro Paul
Good question.
-Terence Bandoian
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Re: Tomcat Server - Arraylist java.util.ConcurrentModificationException
issue
Posted by Subhro Paul <su...@tcs.com>.
From: "Terence M. Bandoian" <te...@tmbsw.com>
To: Tomcat Users List <us...@tomcat.apache.org>
Date: 02/01/2016 07:58 PM
Subject: Tomcat Server - Arraylist
java.util.ConcurrentModificationException issue
On 2/1/2016 6:50 AM, Subhro Paul wrote:
> Hi Team,
>
> Our web application has a "header.jsp" which has 2 Arraylist on it.
Each
> ArrayList has more than 50 items inside. The code is to identify the
> mobile device and requested page and transfer the call to mobile page
> accordingly.
>
> This code works fine once we restart the server and can continue running
2
> months without any issue. But day by day it starts showing 500 error
with
> exception in log "ConcurrentModificationException". Below is the code
> snippet of JSP code. My Question is why this issue is happening around 2
> months? If we clear the temp file created by the server in work folder
> then that will run for some time( 2- 3 days) and then again the same
> exception starts occurring. I have identified one solution by moving the
> JAVA code from JSP to JAVA file which worked good while perform testing
> but client wants to know the root cause of the issue.
>
> FYI, earlier we had Vector in place of Arraylist which gave trouble of
> thread blocking due to synchronization. So, converting from Arraylist to
> Vector will not be a good idea.
>
>
> Exception:
>
> java.util.ConcurrentModificationException
> at
> java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)
> at java.util.ArrayList$Itr.next(ArrayList.java:831)
> at
> org.apache.jsp.includes.header_jsp.isHomePage(header_jsp.java:97)
>
>
> Code Snippet:
>
> <%!
> private Set uas = new HashSet();
> ArrayList<String> urlnames = new ArrayList<String>();
> ArrayList<String> excludePathList = new ArrayList<String>();
Hi, Subhro-
Fields declared in a declarations section (<%! ... %>) are class
variables. If Tomcat uses a single JSP object to serve multiple
requests, which I believe it does, access to these fields should be made
thread safe. A simple solution would be to move the declarations of
these fields to a scriptlet section (<% ... %>) which would result in
them being local to the JSP service method. It isn't the most efficient
way to go about it but it should solve the concurrent access problem
you're seeing.
-Terence Bandoian
/http://www.tmbsw.com/
/
>
> private boolean haveToRedirect(HttpServletRequest request,
> String stopMobiCookie) {
> boolean doRedirect = false;
>
> String userAgent = request.getHeader("User-Agent");
> if (! stopMobiCookie.equals("yes") && userAgent != null &&
> userAgent.length()!=0 && (userAgent.indexOf("UsableNet")==-1))
> {
>
> Iterator iter = uas.iterator();
> while (iter.hasNext()) {
> if (userAgent.indexOf((String)iter.next())!=-1)
{
> doRedirect = true;
> break;
>
>
> }
> }
> }
> return doRedirect;
> }
>
> private boolean isHomePage(HttpServletRequest request){
> Iterator<String> itr = urlnames.iterator();
> String path = "";
> while (itr.hasNext()) {
> path = itr.next();
> if
> (request.getRequestURI().toString().equalsIgnoreCase(path)){
> return true;
> }
> }
> return false;
> }
>
> private boolean isExcludePath(HttpServletRequest request){
> Iterator<String> itr = excludePathList.iterator();
> String path = "";
> while (itr.hasNext()) {
> path = itr.next();
> if (request.getRequestURI().startsWith(path)
&&
> !request.getRequestURI().startsWith("/info/contact.jsp")){
> return true;
> }
> }
> return false;
> }
>
> %>
>
>
> <%
>
> uas.add("Blazer");
> uas.add("Danger hiptop");
> uas.add("DoCoMo/");
> uas.add("Ericsson");
> uas.add("Googlebot-Mobile");
> uas.add("MSN Mobile Proxy");
> uas.add("Handheld");
> uas.add("HTC_HD2_T58585 Opera");
> uas.add("iPhone");
> uas.add("iPod");
> uas.add("Klondike");
> uas.add("LG-");
> uas.add("LGE-");
> ....... Arround 40 items
>
>
> excludePathList.add("/business/my_account");
> excludePathList.add("/business/save_energy");
> excludePathList.add("/business/services");
> excludePathList.add("/business/small_large_business");
> excludePathList.add("/info/environment");
> excludePathList.add("/info/about");
> excludePathList.add("/info/index.jsp");
> excludePathList.add("/info/ambassador.jsp");
> ........ more than 50 items
>
>
> stopMobiCookie = some cookie code
>
> boolean doRedirect = haveToRedirect((HttpServletRequest)request,
> stopMobiCookie);
>
>
> if(doRedirect){
> boolean isHomePage =
> isHomePage((HttpServletRequest)request);
> boolean isExcludePath =
> isExcludePath((HttpServletRequest)request);
>
> session.setAttribute("mobile_agent", "yes");
>
> if(!isHomePage && !isExcludePath){
> String mobileServer =
"mobile.server.com";
> try{
> mobileServer = mobileServer +
> request.getRequestURI().toString();
> }catch(Exception e){}
> %>
> <script type="text/javascript">
> window.location
> ="<%=mobileServer%>";
> </script>
> <%
> }
> }
> %>
>
>
>
> Thanks & Regards
> Subhro Paul
Hi Team,
But why this error come after long time? this should have occurred at
starting.
Thanks & Regards,
Subhro Paul
=====-----=====-----=====
Notice: The information contained in this e-mail
message and/or attachments to it may contain
confidential or privileged information. If you are
not the intended recipient, any dissemination, use,
review, distribution, printing or copying of the
information contained in this e-mail message
and/or attachments to it are strictly prohibited. If
you have received this communication in error,
please notify us by reply e-mail or telephone and
immediately and permanently delete the message
and any attachments. Thank you
Tomcat Server - Arraylist java.util.ConcurrentModificationException
issue
Posted by "Terence M. Bandoian" <te...@tmbsw.com>.
On 2/1/2016 6:50 AM, Subhro Paul wrote:
> Hi Team,
>
> Our web application has a "header.jsp" which has 2 Arraylist on it. Each
> ArrayList has more than 50 items inside. The code is to identify the
> mobile device and requested page and transfer the call to mobile page
> accordingly.
>
> This code works fine once we restart the server and can continue running 2
> months without any issue. But day by day it starts showing 500 error with
> exception in log "ConcurrentModificationException". Below is the code
> snippet of JSP code. My Question is why this issue is happening around 2
> months? If we clear the temp file created by the server in work folder
> then that will run for some time( 2- 3 days) and then again the same
> exception starts occurring. I have identified one solution by moving the
> JAVA code from JSP to JAVA file which worked good while perform testing
> but client wants to know the root cause of the issue.
>
> FYI, earlier we had Vector in place of Arraylist which gave trouble of
> thread blocking due to synchronization. So, converting from Arraylist to
> Vector will not be a good idea.
>
>
> Exception:
>
> java.util.ConcurrentModificationException
> at
> java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)
> at java.util.ArrayList$Itr.next(ArrayList.java:831)
> at
> org.apache.jsp.includes.header_jsp.isHomePage(header_jsp.java:97)
>
>
> Code Snippet:
>
> <%!
> private Set uas = new HashSet();
> ArrayList<String> urlnames = new ArrayList<String>();
> ArrayList<String> excludePathList = new ArrayList<String>();
Hi, Subhro-
Fields declared in a declarations section (<%! ... %>) are class
variables. If Tomcat uses a single JSP object to serve multiple
requests, which I believe it does, access to these fields should be made
thread safe. A simple solution would be to move the declarations of
these fields to a scriptlet section (<% ... %>) which would result in
them being local to the JSP service method. It isn't the most efficient
way to go about it but it should solve the concurrent access problem
you're seeing.
-Terence Bandoian
/http://www.tmbsw.com/
/
>
> private boolean haveToRedirect(HttpServletRequest request,
> String stopMobiCookie) {
> boolean doRedirect = false;
>
> String userAgent = request.getHeader("User-Agent");
> if (! stopMobiCookie.equals("yes") && userAgent != null &&
> userAgent.length()!=0 && (userAgent.indexOf("UsableNet")==-1))
> {
>
> Iterator iter = uas.iterator();
> while (iter.hasNext()) {
> if (userAgent.indexOf((String)iter.next())!=-1) {
> doRedirect = true;
> break;
>
>
> }
> }
> }
> return doRedirect;
> }
>
> private boolean isHomePage(HttpServletRequest request){
> Iterator<String> itr = urlnames.iterator();
> String path = "";
> while (itr.hasNext()) {
> path = itr.next();
> if
> (request.getRequestURI().toString().equalsIgnoreCase(path)){
> return true;
> }
> }
> return false;
> }
>
> private boolean isExcludePath(HttpServletRequest request){
> Iterator<String> itr = excludePathList.iterator();
> String path = "";
> while (itr.hasNext()) {
> path = itr.next();
> if (request.getRequestURI().startsWith(path) &&
> !request.getRequestURI().startsWith("/info/contact.jsp")){
> return true;
> }
> }
> return false;
> }
>
> %>
>
>
> <%
>
> uas.add("Blazer");
> uas.add("Danger hiptop");
> uas.add("DoCoMo/");
> uas.add("Ericsson");
> uas.add("Googlebot-Mobile");
> uas.add("MSN Mobile Proxy");
> uas.add("Handheld");
> uas.add("HTC_HD2_T58585 Opera");
> uas.add("iPhone");
> uas.add("iPod");
> uas.add("Klondike");
> uas.add("LG-");
> uas.add("LGE-");
> ....... Arround 40 items
>
>
> excludePathList.add("/business/my_account");
> excludePathList.add("/business/save_energy");
> excludePathList.add("/business/services");
> excludePathList.add("/business/small_large_business");
> excludePathList.add("/info/environment");
> excludePathList.add("/info/about");
> excludePathList.add("/info/index.jsp");
> excludePathList.add("/info/ambassador.jsp");
> ........ more than 50 items
>
>
> stopMobiCookie = some cookie code
>
> boolean doRedirect = haveToRedirect((HttpServletRequest)request,
> stopMobiCookie);
>
>
> if(doRedirect){
> boolean isHomePage =
> isHomePage((HttpServletRequest)request);
> boolean isExcludePath =
> isExcludePath((HttpServletRequest)request);
>
> session.setAttribute("mobile_agent", "yes");
>
> if(!isHomePage && !isExcludePath){
> String mobileServer = "mobile.server.com";
> try{
> mobileServer = mobileServer +
> request.getRequestURI().toString();
> }catch(Exception e){}
> %>
> <script type="text/javascript">
> window.location
> ="<%=mobileServer%>";
> </script>
> <%
> }
> }
> %>
>
>
>
> Thanks & Regards
> Subhro Paul
> =====-----=====-----=====
> Notice: The information contained in this e-mail
> message and/or attachments to it may contain
> confidential or privileged information. If you are
> not the intended recipient, any dissemination, use,
> review, distribution, printing or copying of the
> information contained in this e-mail message
> and/or attachments to it are strictly prohibited. If
> you have received this communication in error,
> please notify us by reply e-mail or telephone and
> immediately and permanently delete the message
> and any attachments. Thank you
>
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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Re: Tomcat Server - Arraylist
java.util.ConcurrentModificationException issue
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Paul,
Please don't hijack threads. If you want to start a new thread, please
start a new email message addressed to this list; don't find an
existing message and reply to it.
- -chris
On 2/1/16 7:50 AM, Subhro Paul wrote:
> Hi Team,
>
> Our web application has a "header.jsp" which has 2 Arraylist on
> it. Each ArrayList has more than 50 items inside. The code is to
> identify the mobile device and requested page and transfer the call
> to mobile page accordingly.
>
> This code works fine once we restart the server and can continue
> running 2 months without any issue. But day by day it starts
> showing 500 error with exception in log
> "ConcurrentModificationException". Below is the code snippet of JSP
> code. My Question is why this issue is happening around 2 months?
> If we clear the temp file created by the server in work folder then
> that will run for some time( 2- 3 days) and then again the same
> exception starts occurring. I have identified one solution by
> moving the JAVA code from JSP to JAVA file which worked good while
> perform testing but client wants to know the root cause of the
> issue.
>
> FYI, earlier we had Vector in place of Arraylist which gave trouble
> of thread blocking due to synchronization. So, converting from
> Arraylist to Vector will not be a good idea.
>
>
> Exception:
>
> java.util.ConcurrentModificationException at
> java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)
> at java.util.ArrayList$Itr.next(ArrayList.java:831) at
> org.apache.jsp.includes.header_jsp.isHomePage(header_jsp.java:97)
>
>
> Code Snippet:
>
> <%! private Set uas = new HashSet(); ArrayList<String> urlnames =
> new ArrayList<String>(); ArrayList<String> excludePathList = new
> ArrayList<String>();
>
> private boolean haveToRedirect(HttpServletRequest request, String
> stopMobiCookie) { boolean doRedirect = false;
>
> String userAgent = request.getHeader("User-Agent"); if (!
> stopMobiCookie.equals("yes") && userAgent != null &&
> userAgent.length()!=0 && (userAgent.indexOf("UsableNet")==-1)) {
>
> Iterator iter = uas.iterator(); while (iter.hasNext()) { if
> (userAgent.indexOf((String)iter.next())!=-1) { doRedirect = true;
> break;
>
>
> } } } return doRedirect; }
>
> private boolean isHomePage(HttpServletRequest request){
> Iterator<String> itr = urlnames.iterator(); String path = ""; while
> (itr.hasNext()) { path = itr.next(); if
> (request.getRequestURI().toString().equalsIgnoreCase(path)){ return
> true; } } return false; }
>
> private boolean isExcludePath(HttpServletRequest request){
> Iterator<String> itr = excludePathList.iterator(); String path =
> ""; while (itr.hasNext()) { path = itr.next(); if
> (request.getRequestURI().startsWith(path) &&
> !request.getRequestURI().startsWith("/info/contact.jsp")){ return
> true; } } return false; }
>
> %>
>
>
> <%
>
> uas.add("Blazer"); uas.add("Danger hiptop"); uas.add("DoCoMo/");
> uas.add("Ericsson"); uas.add("Googlebot-Mobile"); uas.add("MSN
> Mobile Proxy"); uas.add("Handheld"); uas.add("HTC_HD2_T58585
> Opera"); uas.add("iPhone"); uas.add("iPod"); uas.add("Klondike");
> uas.add("LG-"); uas.add("LGE-"); ....... Arround 40 items
>
>
> excludePathList.add("/business/my_account");
> excludePathList.add("/business/save_energy");
> excludePathList.add("/business/services");
> excludePathList.add("/business/small_large_business");
> excludePathList.add("/info/environment");
> excludePathList.add("/info/about");
> excludePathList.add("/info/index.jsp");
> excludePathList.add("/info/ambassador.jsp"); ........ more than 50
> items
>
>
> stopMobiCookie = some cookie code
>
> boolean doRedirect = haveToRedirect((HttpServletRequest)request,
> stopMobiCookie);
>
>
> if(doRedirect){ boolean isHomePage =
> isHomePage((HttpServletRequest)request); boolean isExcludePath =
> isExcludePath((HttpServletRequest)request);
>
> session.setAttribute("mobile_agent", "yes");
>
> if(!isHomePage && !isExcludePath){ String mobileServer =
> "mobile.server.com"; try{ mobileServer = mobileServer +
> request.getRequestURI().toString(); }catch(Exception e){} %>
> <script type="text/javascript"> window.location
> ="<%=mobileServer%>"; </script> <% } } %>
>
>
>
> Thanks & Regards Subhro Paul =====-----=====-----===== Notice: The
> information contained in this e-mail message and/or attachments to
> it may contain confidential or privileged information. If you are
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> please notify us by reply e-mail or telephone and immediately and
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>
>
>
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