Here is the header of my spring-security.xml :

<?xml version="1.0" encoding="UTF-8" ?>
<b:beans xmlns:b="http://ift.tt/GArMu6"
         xmlns:xsi="http://ift.tt/ra1lAU"
         xmlns:sec="http://ift.tt/1c8inpe"
         xmlns:oauth="http://ift.tt/1bBHntb"
         xmlns:context="http://ift.tt/GArMu7"  
         xmlns:mvc="http://ift.tt/1bHqwjR"  

         xsi:schemaLocation="http://ift.tt/1c8inpe
          http://ift.tt/1epvZ6L
          http://ift.tt/GArMu6
          http://ift.tt/18sW2ax
          http://ift.tt/1bBHntb
          http://ift.tt/1ulwTFM
          http://ift.tt/GArMu7
          http://ift.tt/1bGeTcI
          http://ift.tt/1bHqwjR
          http://ift.tt/JWpJWM  ">

When starting the server, I am prompted this error :

org.xml.sax.SAXParseException: schema_reference.4: Failed to read schema document 'http://ift.tt/1ulwTFM', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema/>.

My thoughts on this :

1. 
   

   The link is valid and the document exists

   
   


2. 
   

   I can read it and I can even reproduce this error if I place this xsd on my local classpath. So it's not a networking issue.

   
   


3. 
   

   That's right, the file is starting by <xs:schema> instead of <xsd:schema>. But the source looks legit.

   
   

Why do I get this error and how can I get rid of it ?