Scala plugin does not work in Java 8 RC

The Scala plugin does not work in the latest Java 8 RC (it works fine on Java 7). Scala itself works on Java 8 RC.

java version "1.8.0"
Java(TM) SE Runtime Environment (build 1.8.0-b129)
Java HotSpot(TM) Server VM (build 25.0-b69, mixed mode)

Gradle 1.10

Build time: 2013-12-17 09:28:15 UTC
Build number: none
Revision: 36ced393628875ff15575fa03d16c1349ffe8bb6

Groovy: 1.8.6
Ant: Apache Ant(TM) version 1.9.2 compiled on July 8 2013
Ivy: 2.2.0
JVM: 1.8.0 (Oracle Corporation 25.0-b69)
OS: Linux 3.2.0-58-generic-pae i386

java.lang.NullPointerException
at org.gradle.api.DefaultTask.(DefaultTask.java:33)
at org.gradle.api.internal.ConventionTask.(ConventionTask.java:28)
at org.gradle.api.tasks.SourceTask.(SourceTask.java:36)
at org.gradle.api.tasks.scala.ScalaDoc.(ScalaDoc.java:28)
at org.gradle.api.tasks.scala.ScalaDoc_Decorated.(Unknown Source)
at org.gradle.api.internal.DependencyInjectingInstantiator.newInstance(DependencyInjectingInstantiator.java:62)
at org.gradle.api.internal.ClassGeneratorBackedInstantiator.newInstance(ClassGeneratorBackedInstantiator.java:36)
at org.gradle.api.internal.project.taskfactory.TaskFactory$1.call(TaskFactory.java:124)