URLs for
https://jdbc.postgresql.org/download/postgresql-9.4-1207.jar
and
https://jdbc.postgresql.org/download/postgresql-jdbc-9.4-1207-sources.jar
are incorrect.
I've aligned version numbers with Maven conventions, so the version is
9.4.1207, not 9.4-1207 (dot instead of dash)
Can you please update link text as well?
I've released the jars to Central:
https://oss.sonatype.org/content/repositories/releases/org/postgresql/postgresql/9.4.1207/
Vladimir