build failures due to glassfish?

[Sergey Shelukhin]

I see this in HiveQA runs:

Could not transfer artifact org.glassfish:javax.el:pom:3.0.1-b06-SNAPSHOT
from/to jvnet-nexus-snapshots
(https://maven.java.net/content/repositories/snapshots): Failed to
transfer file: 
https://maven.java.net/content/repositories/snapshots/org/glassfish/javax.e
l/3.0.1-b06-SNAPSHOT/javax.el-3.0.1-b06-SNAPSHOT.pom. Return code is: 402
, ReasonPhrase:Payment Required.

What is this about, does anyone know?