An opaque Glassfish error

Doing more testing at work today, and decided to pickup the latest compiled output from the build server.

Exception occured in J2EEC Phasejava.lang.IllegalArgumentException: Unknown ContainerTransaction type [Requires]
com.sun.enterprise.deployment.backend.IASDeploymentException: Error loading deployment descriptors for module [EJB FILE] โ€” Unknown ContainerTransaction type [Requires]
at com.sun.enterprise.deployment.backend.Deployer.loadDescriptors(Deployer.java:390)

Pinged one of the developers about that, and apparently it means that the transaction-type in ejb-jar.xml is wrong.ย  Yay.ย  For a reason I cannot fathom, Google had no results for this error either.