The jar file may be corrupt as a result of bad internet connection. Try removing the content of your C:\Users\[username]\.m2\repository folder. Then right click your project, select Maven, Update Project, check on Force Update of Snapshots/Releases. If you are sure only one Jar file has a problem, then you only need to delete its folder.
Remove the standard.jar. It’s apparently of old JSTL 1.0 version when the TLD URIs were without the /jsp path. With JSTL 1.2 as available here you don’t need a standard.jar at all. Just the jstl-1.2.jar in /WEB-INF/lib is sufficient. See also: How to install JSTL? The absolute uri: http://java.sun.com/jstl/core cannot be resolved Our JSTL wiki … Read more
Your web app has servlet container specific libraries like servlet-api.jar file in its /WEB-INF/lib. This is not right. Remove them all. The /WEB-INF/lib should contain only the libraries specific to the Web app, not to the servlet container. The servlet container (like Tomcat) is the one who should already provide the servlet container specific libraries. … Read more
Provided that you’re sure that you’re using Tomcat 7 or newer, the webapp’s web.xml has to be declared conform Servlet 3.0 spec in order to get Tomcat to scan and process the annotations. Otherwise Tomcat will still run in a fallback modus matching the Servlet version in web.xml. The support for servlet API annotations was … Read more
I had a similar problem when running a spring web application in an Eclipse managed tomcat. I solved this problem by adding maven dependencies in the project’s web deployment assembly. Open the project’s properties (e.g., right-click on the project’s name in the project explorer and select “Properties”). Select “Deployment Assembly”. Click the “Add…” button on … Read more
Try putting the driver jar in the server lib folder. ($CATALINA_HOME/lib) I believe that the connection pool needs to be set up even before the application is instantiated. (At least that’s how it works in Jboss)
What you can do is the following; Add a file called ROOT.xml in <catalina_home>/conf/Catalina/localhost/ This ROOT.xml will override the default settings for the root context of the tomcat installation for that engine and host (Catalina and localhost). Enter the following to the ROOT.xml file; <Context docBase=”<yourApp>” path=”” reloadable=”true” /> Here, <yourApp> is the name of, … Read more