Java

Observer is deprecated in Java 9. What should we use instead of it?

concurrency-models

Null check in an enhanced for loop

Noclassdeffounderror: android.support.v7.internal.view.menu.MenuBuilder

android-support-libraries

androidx-migration

Mvn install or Mvn package

build-lifecycle

package-vs-install

Move to next item using Java 8 foreach loop in stream

Most efficient way to cast List<Subclass> to List<Baseclass>

Mod in Java produces negative numbers

Modifying local variable from inside lambda

Mocking member variables of a class using Mockito

dependency-injection

Missing return statement in a non-void method compiles

compiler-behavior

return-statements

Maven does not find JUnit tests to run

Mapstruct + Lombok together not compiling: unknown property in result type

annotation-processing

Map enum in JPA with fixed values?

attributeconverter

Making a mocked method return an argument that was passed to it

Make Hibernate ignore instance variables that are not mapped

hibernate-configuration

persistence-annotations

Log4j vs logback

logging-configurations

logback-vs-log4j

performance-optimization

Log4j: Log output of a specific class to a specific appender

List of Java class file format major version numbers?

class-file-versions

Kotlin-android: unresolved reference databinding

Junit confusion: use 'extends TestCase' or '@Test'?

test-engineering

explain.codes / Java