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If you upgrade to Spring Boot 2.4 and see test compilation errors for JUnit classes such as org.junit.Test, this may be because JUnit 5’s vintage engine has been removed from spring-boot-starter-test.

Spring Boot now uses Tomcat 8 and Jetty 9 as embedded servlet containers. This provides Servlet 3.1 and enhanced WebSocket support out of the box. You can still use ...

Microsoft continues our analysis of the remote code execution vulnerabilities related to Apache Log4j (a logging tool used in many Java-based applications) disclosed on 9 Dec 2021. Currently, ...