Error when signing up to my web application java
49
What is a NullPointerException, and how do I fix it?
130334
VerifyError in web-service operation using SOAP only in Android 4.2?
50005
Unable to log in to my system
124386
java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest
80949
ClassNotFoundException/NoClassDefFoundError in my Java web application
116448
SignUp throws error in StackExchange.com for the non logged-in user
93513
(#200) The user hasn't authorized the application to perform this action
75940
Connection error: "org.jsoup.UnsupportedMimeTypeException: Unhandled content type"
21340
Adding  causes java.lang.IllegalStateException: Cannot create a session after the response has been committed
18116
java.lang.IllegalArgumentException: The servlets named [X] and [Y] are both mapped to the url-pattern [/url] which is not permitted
2837
Why does this code throw an error when trying to create a Person account?
85158
Could not open a connection to your authentication agent
37575
RuntimeException: Unable to instantiate application
49969
How to get UTF-8 working in Java webapps?
18681
Error: j_id0:j_id1:j_id28:j_id30: Validation Error: Value is required
156947
Given URL is not permitted by the application configuration
61108
How to redirect to Login page when Session is expired in Java web application?