axtavt questions

axtavt answers

• Hibernate/HQL/JPQL: what's wrong with a CASE WHEN ... THEN NULL ELSE ... END (ClassCastException)?
• How to specify decimal delimiter for Scanner.nextDouble()
• Spring + Hibernate + JPA + multiple databases
• Startup a Servlet before loading app context
• Can't get any output from the <spring:hasBindErrors> taglib
• Transaction not rolling back in Spring Test for delete operation
• Does a Spring annotated controller necessarily need a default constructor
• Key not found in a HashMap for a composite object
• ReentrantReadWriteLock. read and write acquire priority
• Overloading a spring controller method with the same request mapping