underdog

underdog has asked 26 questions and find answers to 20 problems.

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programmer at HP

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underdog questions

Avoiding nested for loops in iterating through complex objects
Fetching logged in user in service layer with spring security
StackOverflow error on overriding toString() method
Hibernate annotation mapping for java extended classes
difference between Executor framework & Message queues like JMS
Atmosphere framework Spring mvc integration
Spring integration pubsub vs Spring amqp RabbitMQ pubsub
java.lang.ClassCastException: org.springframework.security.core.userdetails.User cannot be cast to model.User
cascade type save update in Hibernate
Finding the shortest path nodes with breadth first search

underdog answers

Java, using throw without try block
HashMap / TreeSet combination inconsistency
How to debug a java heap OutOfMemory error in a production environment?
How do I solve this "cannot be cast to" exception?
Java Spring multiple ApplicationContext
Is it possible to check heap memory usage by pool?
java.lang.ClassCastException: org.springframework.security.core.userdetails.User cannot be cast to model.User
FileWriter out of memory
declaration can be found for element 'context:property-placeholder'. Spring 4
Integrate Spring Security with Facebook Login