Gerrit Grunwald is a software engineer that loves coding for around 40 years already. He is a true believer in open source and has participated in popular projects like the JFXtras Project as well as his own projects (TilesFX, Medusa, Enzo, SteelSeries-Swing, SteelSeries-Canvas and JDKMon).
Gerrit regularly blogs at Harmonic Code and an active member of the Java community, where he founded and leads the Java User Group Münster (Germany). He is a JavaOne rockstar, a Java Champion and a speaker at conferences and user groups internationally and writes for several magazines.