Here are all the Java 9 features that will be making to the release in July 2017. Process API Updates HTTP/2 Client (Incubator) Improve Contended Locking Unified JVM Logging Compiler Control Variable Handles Segmented Code Cache Smart Java Compilation, Phase Two The Modular JDK Modular Source Code Elide Deprecation Warnings on Import Statements Resolve Lint […]
If you want to set the MAVEN_OPTS in Linux permanently, you can do it like below Add below line to ~/.profile
export MAVEN_OPTS="-Xmx1g -XX:MaxPermSize=400m"
They you need to logout and login again.