Next Meetup

Start hunting the Bugs… Mutation Testing 
Note: We are changing the date of this meet up from Wed June 6th to Tuesday May 29th as we've got Sven Ruppert in town for one more meet up Sven is a developer advocate for Vaadin and an Oracle Developer Champion who wrote our Functional Reactive Workshop earlier this month. Sven has a strong interest in industry best practises, and so is going to present a talk on mutation testing - a technique that provides a better way to write and gage unit test effectiveness. ** TALK DESCRIPTION ** JUnit is a well-known tool for Java developers in the area of TDD. We have accepted that Code Coverage can be measured - we distinguish between coverage on the level of classes, methods and rows. The goal is to get the Code Coverage as high as possible on the row level, but not higher than necessary. What exactly does it mean? A code coverage of approximately 75% on the row level is very good and can already provide a basis. But what does this figure say? In this talk we will deal with the term Mutation Testing and show the practical ways of use. How can the coverage be defined and what can be achieved. Well also discuss how it can be integrated into an existing project and what should be considered while running a test. ** SPONSORS ** Big thanks once again to Aconex for sponsoring food and beverage for this meetup.

Needs a location

Upcoming Meetups

Past Meetups (84)

What we're about

The MelbJVM group discusses the Java Virtual Machine (JVM). Topics covered are frameworks and languages on the platform.

Many of our members are software developers using the Java language and looking to find out what's new, and what they can bring to their own projects, bringing up to date techniques and software technologies to the perennial development platform.

Some of our past topics to illustrate this:-

Emerging JVM languages (Redline Smalltalk (, Whiley (, Kotlin ( and more prevalent JVM languages (Groovy, Clojure (, Scala)

Hardware interop with LeapMotion ( and RasberryPi (

Lambda workshop ( (Java 8)

Deploying webapps to the cloud and QoS (Cloudbees (, (

Buildtools (Gradle (

Android Workshop (

Enterprise/Web frameworks (Spring (, Vert.x (, JavaEE (, Grails (, Stripes (, Play 2 with Akka (

Testing frameworks (Geb (, JBehave ( and Katas (

Our members range from those new to programming, students and testers looking to move into development, all the way to those who have been using Java since it was called Oak (did you even know Java used to be called Oak?).

Membership is free. It costs nothing to attend most nights thanks to the generosity of our sponsors ( We meet once a month in the CBD.

Whether you are developing on the JVM or just curious to see what its like, and regardless if you are based in Melbourne or just stopping through please register, we'd be happy to have you. Look forward to seeing you at a future meetup!

Members (1,960)

Photos (262)