As of 17.7, the iGrafx Platform no longer supports Java™ 1.8, 9 and 10. Java™ 11 is the minimum compatible version.
The pre-deployed package in the 17.8.3.829.3674 release and later includes the OpenJDK® Java™ Runtime Environment, version 11.0.12 and Apache Tomcat, version 9.0.54.