"MaxPermSize=256m; support was removed in 8.0" warning on Java 8

Created by: davido

Running buck on OpenJDK 1.8.40 reports the MaxPermSize ignore warning (twice):

$ buck build buck
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0

Java version is:

$ java -version
openjdk version "1.8.0_40"
OpenJDK Runtime Environment (build 1.8.0_40-b22)
OpenJDK 64-Bit Server VM (build 25.40-b25, mixed mode)