RequestDispatcher and .jsp "first run" problem

Hello all,
I'm testing our app on a development server (rh 8.0, tomcat 4.1.18-LE-jdk14, apache 2.0.44, mod_jk-2.0.43 ). Everything seems to work fine except...
I have several instances of servlets that call a .jsp, which calls a servlet, which calls another .jsp, etc. My problem is that the servlets have a problem referencing the .jsps the first time each one is called after a tomcat/apache restart. BTW, jsp to jsp calls work perfectly.
For example, the log-in page calls a servlet which retrieves session and user info from a db and forwards the user to their "home page" that is built in .jsp. The first time I try to log in, I get the following error:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
     at com.act.cit.ui.CitGeneralServlet.gotoJSPErrorPage(CitGeneralServlet.java:119)
     at com.act.cit.ui.CitGeneralServlet.cleanUpForException(CitGeneralServlet.java:136)
     at com.act.cit.ui.CitLoginServlet.doPost(CitLoginServlet.java:201)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.servlets.InvokerServlet.serveRequest
So not only am I not accessing the .jsp, but I'm not finding my desginated error .jsp either...looks like the 'null' that is being referenced is the .jsp I'm trying to hit. I've confirmed that the database is being accessed correctly (non-null results) and that I'm getting to the point in my servlet that forwards me to my .jsp:
req.getRequestDispatcher("../jsp/citMain.jsp").forward(req, res);
I've also tried:
getServletContext().getRequestDispatcher("../jsp/citMain.jsp").forward(req, res);
"req" and "res" both have non-null addresses. The next time I try to log in, everything works perfectly, just as it does on our old production server.
All I can think of is that there's some sort of problem in the apache/tomcat config, but why would the server be able to process the .jsp successfully on subsequent tries?
Thanks a lot! This one's really been eating at me!

What version of tomcat and jdk are you using?rh 8.0, tomcat 4.1.18-LE-jdk14, apache 2.0.44, mod_jk-2.0.43
I left my first getRequestDispatcher attempt as relative addressing and changed to absolute address on the second just to test:
rd = req.getRequestDispatcher("../jsp/citMain.jsp");
if (rd==null){
     LogFileWriter.logThis(this, "rd was null"); //this is just a static logger I wrote
     rd = req.getRequestDispatcher("/jsp/citMain.jsp");
     if (rd==null)
          LogFileWriter.logThis(this, "rd is still null");
     else
          LogFileWriter.logThis(this, "now rd is okay");
else{
     LogFileWriter.logThis(this, "rd was okay");
} Here's my new logfile output after two login attempts:
CitGeneralServlet--
rd was null
CitGeneralServlet--
now rd is okay
end of the first attempt, now here's the results of the 2nd attempt:
CitGeneralServlet--
rd was okay
I still think it's odd that I can use relative addresses after the first execution, but I'm sure it's something to do with when the .jsp is compiled. Anyway, I don't have time to dig for the root cause right now. Absolute address seems to fix the problem, I'll stick with that. Thanks for all the suggestions. Hopefully this thread will help someone else who comes across the same problem.

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<%@ page contentType="text/html"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
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<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<META http-equiv="Cache-Control" content="no-cache">
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Quick Jump To Page:
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</html>I've added comments where I timed my code from (by writing new Date().getTime() to the console). It usually takes between 1 and 2 seconds for that block of JSP to execute. I wrote a test class that should be very similar to the process (iterating over the forEach loop mainly) and it usually executed in 10ms to 20ms.
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Thanks,
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Can you get acceptable performance if you hack out everything except the browserBean forEach loop? Maybe you are trying to do too much runtime EL evaluation on the page.
If performance improves, you may want to push the URL construction and startValue computations to a Struts Action and put a bunch of objects on the requestScope (like "id_url", "name_url", "pageStartValue").
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Thank you twtwtw, very helpful!
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7. Begin using it. :-)
Since it took me a while to cobble together the other ones I made, I should probably share them. Once I get the time to bring over the other “involved” ones I’ll see if I can find out where is the best place to do that.
Thank you both, red_menace, and twtwtw for your help!

How to use servlets and JSP for my homepage?

servlets and JSP are server-side program. If my homepage is on some web-hosting websites, can I upload the servlets and JSP to run it? if possible, where can I find such a web-hosting place?
sraiper

Not many hosts offer JSP or Servlet support (and some do but then stop and never give you a refund, grrrrrrr!!!!).
Also, ones that do support it can often be more expensive. There are some free ones but all the one's I've come across have problems that made them unsuitable for my needs.
Here is a list of hosts that support Java:
http://www.thejspbook.com/resources/category.jsp?id=1005&name=JSP+web+hosting
I can't comment on any from that list, however I use http://www.positive-internet.com they are a bit pricey but they have excellent support and are always happy to help with any Tomcat (the JSP/Servlet server they use)configuration issues or needs that you may have.

Problem with this new version is when i open firefox something change my home page to mozila defalut page and in the new tab open mozila firefox first run page.Sorry for my bad English

Problem with this new version is when i open firefox something change my home page to mozila defalut page and in the new tab open mozila firefox first run page.Sorry for my bad English

Sounds like this issue:
* http://kb.mozillazine.org/Preferences_not_saved
* [[Preferences are not saved]]

I have a new Macbook pro and need to run some Windows software, it appears "Parallel" should work well from what I've have read. Will I have any issues or problems accessing and printing from various printers on my Windows 7 network within Parallel?

I have a new Macbook pro and need to run some Windows software, it appears "Parallel" should work well from what I've have read. Will I have any issues or problems accessing and printing from various printers on my Windows 7 network within Parallel? Is Parallel in fact the best way to go?

First, back up all data immediately, as your boot drive might be failing.
There are a few other possible causes of generalized slow performance that you can rule out easily.
Reset the System Management Controller.
If you have many image or video files on the Desktop with preview icons, move them to another folder.
If applicable, uncheck all boxes in the iCloud preference pane.
Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.
Check your keychains in Keychain Access for excessively duplicated items.
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Select the 50 or so most recent entries in the log. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long.

My 27" 2010 iMac has recently began freezing and movement on the display is molasses slow. We have 500 gigabytes available and no applications running and the problems still persist. Any advice?

My 27" 2010 iMac has recently began freezing and movement on the display is molasses slow. We have 500 gigabytes available and no applications running and the problems still persist. Any advice?

IF your system is running extremely slow with no applications running other than Finder then I'd suspect a failing HD or you have a runaway process somewhere. Open Activity Monitor (Applications - Utilities - Activity Monitor) and look to see if you have any applications taking a large %CPU, if you do that is your problem. To test the HD run Apple Hardware Test, please read:
http://support.apple.com/kb/HT1509
to learn how to run AHT on your machine, also run it in EXTENDED MODE so it does the most complete test. If no errors are found after the first pass run it another 2-3 times to be thorough.

I updated to ios 7 2 days ago and I synced with my computer for the first time yesterday. Most of my calendar appts and events were wiped off my phone but are still on the computer. I use outlook 2010 and a pc running windows 7.

I updated my iphone 5 to ios 7 two days ago and I synced with my computer for the first time yesterday. Most of my calendar appointments and events were wiped off my phone but are still on the computer. I use outlook 2010 and a pc running windows 7. Rebooting the phone and the computer failed to remedy the calendar sync problem.

Easy solution for restoring lost calendar informaiton, thank goodness. On your iPhone, go to settings, then to iCloud. If your Calendar selection is turned off, turn it on. Your info should restore. If your Calendar selection is turned on, then turn it off. Choose to save calendars when asked. After it shuts the Calendar off, turn it back on. Your info should be restored.
Thank you to Apple support for walking me through this. Shame on you Apple for not just telling people about this easy fix rather than making us go through all of this pain and worry.
- JT

I need advise and help with this problem . First , I have been with Mac for many years ( 14 to be exact ) I do have some knowledge and understanding of Apple product . At the present time I'm having lots of problems with the router so I was looking in to

I need advise and help with this problem .
First , I have been with Mac for many years ( 14 to be exact ) I do have some knowledge and understanding of Apple product .
At the present time I'm having lots of problems with the router so I was looking in to some info , and come across one web site regarding : port forwarding , IP addresses .
In my frustration , amongst lots of open web pages tutorials and other useless information , I come across innocent looking link and software to installed called Genieo , which suppose to help with any router .
Software ask for permission to install , and about 30 % in , my instinct was telling me , there is something not right . I stop installation . Delete everything , look for any
trace in Spotlight , Library . Nothing could be find .
Now , every time I open Safari , Firefox or Chrome , it will open in my home page , but when I start looking for something in steed of Google page , there is
''search.genieo.com'' page acting like a Google . I try again to get raid of this but I can not find solution .
With more research , again using genieo.com search eng. there is lots of articles and warnings . From that I learn do not use uninstall software , because doing this will install more things where it come from.
I do have AppleCare support but its to late to phone them , so maybe there some people with knowledge , how to get this of my computer
Any help is welcome , English is my learned language , you may notice this , so I'm not that quick with the respond

Genieo definitely doesn't help with your router. It's just adware, and has no benefit to you at all. They scammed you so that they could display their ads on your computer.
To remove it, see:
http://www.thesafemac.com/arg-genieo/
Do not use the Genieo uninstaller!

How can I disable the 'First Run' and 'Whats New' pages from showing after updating Firefox for all users that log onto a system.

I am a system administrator and need a way to set a global preference to not open the Whats New and first run pages. I found the browser.startup.homepage_override.mstone preference in the user profile but want to be able to set this globally.

Use a mozilla.cfg file in the Firefox program folder to lock prefs or specify default values.
Place a file local-settings.js in the defaults\pref folder where you also find the file channel-prefs.js to specify using mozilla.cfg.
pref("general.config.filename", "mozilla.cfg");
pref("general.config.obscure_value", 0); // use this to disable the byte-shift
See:
* http://kb.mozillazine.org/Locking_preferences
You can use these functions in mozilla.cfg:
defaultPref(); // set new default value
pref(); // set pref, but allow changes in current session
lockPref(); // lock pref, disallow changes
*http://kb.mozillazine.org/browser.startup.homepage_override.mstone

TS4088 why is there a limit on 3 years? it should be all the MacBook Pro mid 2010 with symptoms, there should get their logic board changed for free, mine mac is 3 month late and i had this problem for over a year, but i first saw this article today :(

it should be all the MacBook Pro mid 2010 with symptoms, there should get their logic board changed for free, mine mac is 3 month late and i had this problem for over a year, but i first saw this article today

Hey Clintonfrombirmingham
I called Apple technical support in Denmark, but with no positive reply.
She couldn't do anything, and said that They had sent a recall Email about the problem and with their offer to repair the Macbook Pro, but I'd never recieved an Email about the problem. She wasn't in power to make an exception. It can't be true that i paid a lot of money, for a product that can't barely stand on its own feets, Apple didn't tell me that the product I was about to buy, would restart every 5 minute. and now when they know the problem, they wont repair it? it just don't make sense for me. If a car seller discovers that all the brakes in a car he had sold, will crash after some years he will call all the cars back to repair no mater what. i just don't understand how Apple will make good service for their custumers, by extending the warranty from 2 to 3 years, but wont take the computers there is a little bit to old, 4 months will make the difference. i can't believe it.
What can i do now?
best regards Oskar

Distinguishing First Run and Rerun for DVR Recording

If you want to record a series, not just a single show, the only choice you have is to record BOTH First-Run episodes AND Reruns. I note that Direct TV users and TiVo users have a choice when recording a series by selecting First Run Only or First Run and Repeats. Without this discriminate, shows that repeat habitually throughout the day and week are recorded. This is a major inconvenience if your recording are almost exclusively series TV shows. It becomes very inconvenient for series broadcast on HBO, where throught the week multiple series and reruns--for example Boardwalk Empire--are all playing in a single week. The lack of this feature--that other services already have--is a major shortcoming.

Something odd there. Which DVR model?
Should be press DVR button scrool to manage series recordings, press right, scroll to show, press ok, (options including change priority, modify series and cancel series. Modify Series. press ok. Options on that include episodes (first run only/first run and repeats). Scroll to episodes, press enter, change as desired, press ok, push right to save, press ok. close menus, may have to do repeated exits.
You may also want to find the dvr settings to set your default options for creating series recordings. menu/settings/system/dvr/default series options

RequestDispatcher and .jsp "first run" problem

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