Java

When using Spring Security, what is the proper way to obtain current username (i.e. SecurityContext) information in a bean?

dependency-injection

security-context

spring-security

When to use Spring Integration vs. Camel?

integration-patterns

spring-ecosystem

framework-comparison

When to use @QueryParam vs @PathParam

When to use generic methods and when to use wild-card?

type-parameters

When should we use Observer and Observable?

event-driven-architecture

When should we use intern method of String on String literals

string-interning

performance-optimization

memory-management

When should we call System.exit in Java

thread-management

When should one use final for method parameters and local variables?

When should I use File.separator and when File.pathSeparator?

file-path-separator

cross-system-compatibility

What to return if a Spring MVC controller method doesn't return value?

response-entity

http-status-code

What's the simplest way to print a Java array?

What's the nearest substitute for a function pointer in Java?

functional-programming

functional-interfaces

What's the difference between Thread start() and Runnable run()

What's the difference between JPA and Spring Data JPA?

repository-pattern

jpa-configuration

spring-data-jpa

What's the best way to check if a String represents an integer in Java?

exception-handling

performance-optimization

string-validation

What's the best way to build a string of delimited items in Java?

performance-optimization

What's the actual use of 'fail' in JUnit test case?

test-engineering

exception-handling

What's causing my java.net.SocketException: Connection reset?

network-packets

http-client-logging

tls-compatibility

What is the use of join() in threading?

What is the use of a private static variable in Java?

explain.codes / Java