GeoServer source code compilation does not pass: an exception occurs:
java.lang.RuntimeException: java.lang.NoSuchMethodError: com.sun.tools.javac.util.JavacMessages.add(Lcom/sun/tools/javac/util/JavacMessages$ResourceBundleHelper;)V
As explained in section 8 of the official documentation, because Error Prone does not support Java 8 version