Compiling under OpenJDK 10

As of 2018-09-27, OpenJDK does not trust Amazon Trust Services Root CA, and as a result Maven is not able to contact oss.sonatype.org.

It's necessary to add the Amazon CA to your cacerts file. The Linux/macOS way of doing this is:

cd /tmp

# Download amazon trust services root ca cert
wget https://www.amazontrust.com/repository/SFSRootCAG2.cer

# Go to JDK security folder
cd /Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home/lib/security

# Add Amazon CA to the local CA store
# password for cacerts is "changeit"
sudo keytool -importcert -alias aws-starfield-technologies -keystore cacerts -file /tmp/SFSRootCAG2.cer