The matching wildcard is strict, but no declaration can be found for element 'context:component-scan

You have not specified the schema location of the context namespace, that is the reason for this specific error:

<beans .....
  xmlns:context="http://www.springframework.org/schema/context"
  xsi:schemaLocation="
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd">

This path of the schema location is wrong:

http://www.springframework.org/schema/beans

The correct path should end with /:

http://www.springframework.org/schema/beans/

I was having issues with

Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'security:http'

and for me I had to add the spring-security-config jar to the classpath

http://docs.spring.io/spring-security/site/docs/3.1.x/reference/ns-config.html

EDIT:

It might be that you have the correct dependency in your pom.

But...

If you are using multiple spring dependencies and assembling into a single jar then the META-INF/spring.schemas is probably being overwritten by the spring.schemas of another of your spring dependencies.

(Extract that file from your assembled jar and you'll understand)

Spring schemas is just a bunch of lines that look like this:

http\://www.springframework.org/schema/p=org.springframework.beans.factory.xml.SimplePropertyNamespaceHandler
http\://www.springframework.org/schema/beans/spring-beans-3.0.xsd=org/springframework/beans/factory/xml/spring-beans-3.0.xsd

But if another dependency overwrites that file, then the definition will be retrieved from http, and if you have a firewall/proxy it will fail to get it.

One solution is to append spring.schemas and spring.handlers into a single file.

Check:

Idea to avoid that spring.handlers/spring.schemas get overwritten when merging multiple spring dependencies in a single jar