We have Travis set up with a Maven-based Java project. Until a couple of days ago, the Maven configuration worked as expected. But now the Maven build consistently errors out, with the following error message:
[ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6: Could not transfer artifact org.apache.maven.plugins:maven-resources-plugin:pom:2.6 from/to central (https://repo.maven.apache.org/maven2): Access denied to: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.pom , ReasonPhrase:Forbidden.
Nothing changed on our end regarding the Maven or Travis configurations, and the project builds and runs fine locally.
Here is the full job with more details: