FULL PRODUCT VERSION :
java version "1.8.0_60"
Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
Java HotSpot(TM) VM 64-Bit Server VM (build 25.60-b23, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Ubuntu 14.04 LTS

A DESCRIPTION OF THE PROBLEM :
The class jdk.nashorn.internal.runtime.JSObjectListAdapter appears to no longer present in the JDK.

REGRESSION. Last worked in version 8u45

ADDITIONAL REGRESSION INFORMATION:
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) VM 64-Bit Server VM (build 25.45-b02, mixed mode)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
import jdk.nashorn.internal.runtime.JSObjectListAdapter into a class

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
jdk.nashorn.internal.runtime.JSObjectListAdapter is present and imports successfully.
ACTUAL -
jdk.nashorn.internal.runtime.JSObjectListAdapter is not present, and cannot be imported.

REPRODUCIBILITY :
This bug can be reproduced always.