Java

Sometimes, especially during debugging, it would be helpful to mark single lines in the log in colours. There is a simple way to achieve this with Spring Boot and logback. With this dependency in place you can extend your logger to achieve this. Here a sample setup: This allows you to mark a resource in […]

Spring Boot contains a quite nice configuration for logback with color coding and good readability. But it lacks logging MDC (Mapped Diagnostic Context) content. I tried around and found a way to append MDC to every logged line by setting the console pattern in my application.properties/yml under logging.pattern.console to Without any MDC set this adds

It’s quite easy to mix up spring-boot-start-cache with 2nd level caching in hibernate. In this post I want to take down how to enable both and being able to run tests from within intellij and gradle (which isn’t the default if you just follow most tutorials). To have proper dependencies for this i added the

In my latest experiments I upgraded a project to Java 15 and received exceptions during the build from jacoco that state that the used Java version isn’t supported. Here the exceptions stacktrace I received: Especially “Unsupported class file major version 59” is a good indicator that Java 15 isn’t supported yet. To get around that

In openSUSE 13.2 JAVA_HOME is set to default OpenJDK JRE. This can be changed in the file /etc/profile.d/alljava.sh. Just place your jdk-installation directory in front of the listed directories in the first for loop.

“true or false. Setting which indicates whether or not the new IdentifierGenerator implementations are used for AUTO, TABLE and SEQUENCE. Default to false to keep backward compatibility. Note We recommend all new projects to use hibernate.id.new_generator_mappings=true as the new generators are more efficient and closer to the JPA 2 specification semantic. However they are not

Java SE 7u79/80 Auto-update Notice & End of Public Updates for Oracle JDK 7 Coincident with the January 2015 CPU release users with the auto-update feature enabled will be migrated from Oracle JRE 7 to Oracle JRE 8. Also, please note this release will be the last Oracle JDK 7 publicly available update. For more

see http://www.oracle.com/technetwork/java/javase/downloads/index.html

JSF 2.2 has the missing ViewScoped annotation working with CDI. Simply use @javax.faces.view.ViewScoped on your bean. Be careful NOT to mix up with @javax.faces.bean.ViewScoped. Example view scoped class: import javax.faces.view.ViewScoped; import javax.inject.Named; @ViewScoped @Named public class SenderView implements Serializable { } If you use the wrong annotation you will get weld errors when trying to inject an instance