spring-beans.xml schema reference is invalid: I'm not sure if this would affect normal james 3 operation but the xsi:SchemaLocation attribute in the file prolog refers to a non-existant schema file at http://activemq.apache.org/schema/core/activemq-core.xsd. The ActiveMQ version needs to be specified in the schema URL. In short, replace the above schema URL with http://activemq.apache.org/schema/core/activemq-core-5.3.2.xsd. (The ActiveMQ version number is identified in Oct 31 2010 james-user mail list post by Norman but may have changed by the time this issue is being resolved).
This problem does not seem to prevent James from starting correctly.