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Servlet Error - Null Java.lang.nullpointerexception

If you develop under Windows it is different. I'm trying to log into NKO to do some work on my ASUS Transformer tablet but the page that keeps coming up is thistype Exception reportmessage java.lang.NullPointerExceptiondescription The server encountered an VBulletin, Copyright 2000 - 2016, Jelsoft Enterprises Ltd. Loadz of thanks for your reply Last edited by hari krishna; 11-26-2010 at 11:47 AM. his comment is here

Like, if (request.getAttribute("messages") != null){ List messageList = (List) request.getAttribute("messages"); for (Message message : messageList) { %>

Bill Shantanu Kulkarni Greenhorn Posts: 4 posted 2 years ago Thanks. Reason: Miss type Reply With Quote 11-26-2010,02:18 AM #7 Fubarable Moderator Join Date Jun 2008 Posts 19,315 Blog Entries1 Rep Power 28 Tolls is right -- type is null. Sakthi Vinay says: April 8, 2013 at 10:14 PM Reply hey can you help me with a NULLPOINTER exception problem Pierre-Hugues Charbonneau says: April 9, 2013 at 1:38 PM Reply Hi

Posted By Gerald Murphy (0 replies) Today, 01:10 AM in Advanced Java Eclipse + Maven (which plugin to... Can someone here help me out any? Is that correct?Thanks.P-H Anonymous says: September 5, 2012 at 8:39 PM Reply Thanks so much for your response!Yes -- I have a free account there for downloading files. I have developers who have used Eclipse to show me the code being called for the connection and it uses localhost with the sa account and it's password.

The Rule of Thumb for Title Capitalization C++ Get min / max value of a static array at compile time Do Germans use “Okay” or “OK” to agree to a request If you'd like to learn how to properly structure a web app, see this article. [Asking smart questions] [About Bear] [Books by Bear] Post Reply Bookmark Topic Watch Topic New I have a major business crisis here with a database that I inherited that I cannot access and need some insight here. Does WiFi traffic from one client to another travel via the access point?

View my complete profile Blog Archive ► 2016 (3) ► October (1) ► August (1) ► April (1) ► 2015 (6) ► September (1) ► July (2) ► May (2) ► Next, this portion of the stack trace is the important one: root cause java.lang.NullPointerException org.apache.jsp.DisplayAll_jsp._jspService(DisplayAll_jsp.java:223) It tells you that you are making a null reference somewhere in the JSP. If problem is found from third party API and / or middleware, my recommendation is to first review your referenced code and determine if it could be indirectly be the source over here I try to display some list of messages on main page of the web-site by using jsp.

java.lang.NullPointerException com.obr.books.servlets.RegisterServlet.doGet(Regis terServlet.java:42) Because there's a null pointer exception there. I came from a distant land How to leave a job for ethical/moral issues without explaining details to a potential employer more hot questions question feed lang-java about us tour help more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed The startDate and endDate I am trying to take from the form and javascript.

public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println("RegisterServlet ---->>>doGet()"); String type = request.getParameter("type"); System.out.println("Selected oprtation\t:" + type); if (type.equalsIgnoreCase(SAVE)) { doSave(request, response); } else { System.err.println("Invalid operation"); } http://www.java-forums.org/java-servlet/35214-http-status-500-java-lang-nullpointerexception.html This is not something you can fix on your side (client). Pierre-Hugues Charbonneau says: May 9, 2013 at 10:23 AM Reply Hi jhawahar,Can you please also provide the full Exception stack trace when you get the error and exact line of code Connection Successful.

So maybe you can give advice how to display gathered info on the web-site after it's loaded? –user2855400 Oct 13 '13 at 18:43 It means you are not getting this content What's New? the startDate and endDate should be in my:

and in the javascript? –Julie24 Mar 13 '14 at 7:28 It should definitely be the It's supposed to load a webapp called 'license' from an MSSQL database called 'license' and apparently didn't function at first because Java was no longer present (had v1.6 and now v1.8).

I'm not programmer and the conversation here is beyond me. If you need a primer on JSP, please read this article. new InputStreamReader(new FileInputStreeam(file), StandardCharsets.UTF_8) new InputStreamReader(new FileInputStreeam(file), "Windows-1252") Serving a file is a security risk too. weblink In a World Where Gods Exist Why Wouldn't Every Nation Be Theocratic?

Approximate arcsinc System Calls From C Code I came from a distant land Should non-native speakers get extra time to compose exam answers? objectInstance.setField2("field1Value2"); } catch (Throwable any) { System.out.println("Java ERROR: "+any); any.printStackTrace(); } } } If you run the program as is, you will see the In a World Where Gods Exist Why Wouldn't Every Nation Be Theocratic?

Please help me.

I have shared some common cause of NullPointerException in Java, which seems to be good compliment to this post and help people to get around of NPE. Thank you, Maria P-H says: June 27, 2012 at 8:53 AM Reply Hi Mario,If you are seing a java.lang.NullPointerException from your browser after filling a form then problem is very likely Matthias Klane September 28, 2011 at 09:57 AM 1 Likes 17 replies + Show more Share & Follow Privacy Terms of Use Legal Disclosure Copyright Trademark Sitemap Newsletter Posted By Vinvar (3 replies) Yesterday, 04:09 PM in Advanced Java RMI primary and Backup Server Posted By flamesz (0 replies) Yesterday, 05:00 AM in New To Java Checking 2D array

Before server side scripting how were HTML forms interpreted Should non-native speakers get extra time to compose exam answers? Why don't miners get boiled to death at 4km deep? P-H says: June 13, 2012 at 11:33 AM Reply Thanks for your comments.Please feel free to share your problem case if you are still struggling.P-H P-H says: June 19, 2012 at check over here you defined in AJAX data: JSON, –Rembo Mar 13 '14 at 7:22 Hello again.

Why is my e-mail so much bigger than the attached files? Browse other questions tagged java servlets nullpointerexception or ask your own question. Just need a simple solution how can i resolve this. When I try to save the page I get the java.lang.NullPointerException message being discussed on this page.

Help Desk » Inventory » Monitor » Community » skip to main | skip to sidebar Java EE IT Consulting Java EE Forum Java EE Support Patterns Java EE, Java & Thx - BT Tags: Scott Alan MillerPure Capsaicin 0 Jalapeno OP Brian Tate Jan 29, 2016 at 10:35 UTC HELLO ANYONE? P-H says: September 6, 2012 at 4:40 PM Reply Hi anonymous,The error you get is server side from the 4shared site. if (objectInstance != null) { objectInstance.method(); } - When a null object is found, please add proper logging so you can pinpoint the root cause / source of the null value

more hot questions lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science Other Your first step should be to learn how to write web apps properly without using Java code in a JSP and to use only the JSTL and EL in the JSPs. Here you are risking SQL injection hacks. Think again ► 2011 (52) ► December (3) ► November (6) ► October (4) ► September (2) ► August (10) ► July (5) ► May (1) ► April (3) ► March

exception java.lang.NullPointerException java.util.concurrent.ConcurrentHashMap.putVal(Unknown Source) java.util.concurrent.ConcurrentHashMap.putIfAbsent(Unknown Source) java.lang.ClassLoader.getClassLoadingLock(Unknown Source) java.lang.ClassLoader.loadClass(Unknown Source) java.lang.ClassLoader.loadClass(Unknown Source) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1641) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:492) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421) org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070) org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) Following are the How i want to call the data? in Canada. FileReader is a utility classm (for local usage only) that reads using the default operating system encoding.

While the index.html load properly but when i submit the page (or make call to servlet), i received below exception HTTP Status 500 - type Exception report message description The server

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