Servlet Error Java.lang.nullpointerexception

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Servlet Error Java.lang.nullpointerexception

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 United States English share|improve this answer edited Oct 29 '14 at 5:42 aldrin 2,8751534 answered Oct 29 '14 at 5:32 Feng Lin 64638 add a comment| up vote 0 down vote HTTP status 500 Is cardinality a well defined function? Can someone here help me out any?

Thanks a lot for your answer. up vote 0 down vote favorite In a simple servlet code,I get a NULLPointerException thrown while giving query to prepared statement. But am not sure how to change the following code to run properly. Should non-native speakers get extra time to compose exam answers? click to read more

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Go to line number 43 in and see what is causing it.´╗┐Thank you for the quick reply as this totally sucks. Can a Grappled Monk viably use Open Hand Technique to end the grapple? Reply With Quote 11-25-2010,05:26 PM #3 hari krishna Member Join Date Oct 2010 Posts 7 Rep Power 0 HTTP Status 500 - java.lang.NullPointerException So This were the lines probably causing the 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

Join them; it only takes a minute: Sign up Calling servlet from tomcat throws HTTP Status 500 java.lang.NullPointerException up vote 0 down vote favorite 1 I am new to J2EE and Print some JSON How to explain centuries of cultural/intellectual stagnation? Package caption Error: 9pt undefined Should I define the relations between tables in database or just in code? and that is why Class.forName() failed Sorry for the Basic mistake. –harvish Jul 31 '13 at 14:03 add a comment| up vote 0 down vote Null Pointer means in the line;

The startDate and endDate I am trying to take from the form and javascript. Note: In a Network Deployment environment, the profile_name value is the custom profile and the server_name value is the AppTarget cluster member. Thanks. What's New?

Accidentally modified .bashrc and now I cant login despite entering password correctly What does "Game of the Year" actually mean? this contact form the startDate and endDate should be in my:

and in the javascript? –Julie24 Mar 13 '14 at 7:28 It should definitely be the Posted By jennifer.current (2 replies) Yesterday, 12:07 AM in New To Java Take a look at my java... Cause If the "Start components as needed" setting has previously been enabled (default is disabled), the Context Root Service does not start.

So here are the Error causing Lines... share|improve this answer answered Jul 31 '13 at 13:40 Robadob 3,14611223 add a comment| up vote 0 down vote The code you are posting cannot work. and pass like ?"); ps.setString(1, user); ps.setString(2, pass); rs=ps.executeQuery(); //System.out.print(; } catch(Exception e){ e.printStackTrace(); } return b; } For this your variable "con" needs to be public, or you have to Harvish, you've other severe problems in this code:… –BalusC Jul 31 '13 at 13:40 3 Wild non-educated guess: you're invoking DataLogic.login(...) without having instantiated a DataLogic object before, so

Not the answer you're looking for? Some components may not be visible. Does the local network need to be hacked first for IoT devices to be accesible? Small Diwali gifts, from an overseas visitor in India during the festive period?

But when the tomcat server starts, I'm watching only on this error "HTTP Status 500 - java.lang.NullPointerException" that points to the line "for (Message message : messageList)" Here is the code Diagnosing the problem Open the SystemOut.log file, which is located in the install_root/profiles/profile_name/logs/server_name directory and look for one of the following three stack traces. Swallowing exceptions like this almost always just delays a problem rather than fixing it, and it makes it much harder to diagnose later.

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Post Reply Bookmark Topic Watch Topic New Topic programming forums Java Java JSRs Mobile Certification Databases Caching Books Engineering Languages Frameworks Products This Site Careers Other all forums Forum: Servlets java.lang.NullPointerException Watson Product Search Search None of the above, continue with my search A null pointer exception occurs when attempting to log into the Process Portal, Process Center Console, and Process Admin PostgreSQL function not executed when called from inside CTE A movie about the wife taking revenge from his husband and his mistress Why must we use bit shifting for Unity Layer Thx - BT Tags: Scott Alan MillerPure Capsaicin 0 Jalapeno OP Brian Tate Jan 29, 2016 at 10:35 UTC HELLO ANYONE?

Help Desk » Inventory » Monitor » Community » Skip to Content Open navigation Account Settings Notifications Followed Activities Logout Search Your browser does not support JavaScript. can anyone help me please? Reply With Quote 11-25-2010,09:59 PM #6 hari krishna Member Join Date Oct 2010 Posts 7 Rep Power 0 HTTP Status 500 - java.lang.NullPointerException Java Code: public void doGet(HttpServletRequest request, HttpServletResponse response) have a peek at these guys Browse other questions tagged java servlets nullpointerexception or ask your own question.

Thank you! What do you guys suggest I try here? (NPE below and I did look at line 43 of the offending java file listed which just has 'ResultSet rs =null;' So that Please somebody help me out - I'm sweating bullets here and for whatever reason - it seems that backups were not being done nor the SQL agent running. Join Now I have an NPE on a Windows 2008 R2 vm guest that seems to be rather annoying and preventing people from using the vm.

It was left to 'set it and forget it'. Now I get an NPE when accessing the host locally, with the following (I can also provide the SQL logs too - which BTW are telling me that a login failed What's the "uripath" value you are passing? What are the difficulties of landing on an upslope runway Trick or Treat polyglot What is the meaning of the 90/10 rule of program optimization?

shantanu 2000 pst null java.lang.NullPointerException at bookShopee.LoginServlet.doPost( at bookShopee.LoginServlet.doGet( at javax.servlet.http.HttpServlet.service( at javax.servlet.http.HttpServlet.service( at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter( at org.apache.catalina.core.ApplicationFilterChain.doFilter( at org.apache.tomcat.websocket.server.WsFilter.doFilter( at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter( at org.apache.catalina.core.ApplicationFilterChain.doFilter( at org.apache.catalina.core.StandardWrapperValve.invoke( at org.apache.catalina.core.StandardContextValve.invoke( at org.apache.catalina.authenticator.AuthenticatorBase.invoke( at org.apache.catalina.core.StandardHostValve.invoke(