scala sbt and corporate proxy - SunCertPathBuilderException

Question

When I try to use SBT some files cannot be downloaded with the following error:

Server access Error: sun.security.validator.ValidatorException: PKIX

Answer 1

So this happens when you are behind a proxy and we need the proxy server certificate to be added to the java truststore

cp $JAVA_HOME/jre/lib/security/cacerts /
# Get the certificate of the proxy server and store it in a file-proxy.pem
keytool -keystore cacerts -import -file proxy.pem -alias my_proxy
# Now we can invoke sbt with following config
sbt  "-Djavax.net.ssl.trustStore=/path/to/included/proxycert/cacerts" compile