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I'm having some difficulties uploading a java library on clojars. I've already pushed a SNAPSHOT, but somehow can't push a release version. I get this message :

org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.sonatype.plugins:nexus-staging-maven-plugin:1.5.1:deploy (default-deploy) on project bacnet4j: Failed to deploy metadata: Could not transfer metadata org.clojars.frozenlock:bacnet4j/maven-metadata.xml from/to clojars (): Access denied to: , ReasonPhrase: Forbidden - no pom file was uploaded.
Any ideas what might be causing this?