Jaxox questions

• Spring data + Mongodb + query single value?
• spring social facebook + api + angularjs (How to call from angular -> spring api -> redirect to facebook login)
• Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: javax/servlet/ServletContext
• String Pool behavior
• spring web, security + web.xml + mvc dispatcher + Bean is created twice
• How can I make Spring Security store the HTTP Session in a database to use the web app on multiple servers?

Jaxox answers