Dynamic Deserialization Filters - a JEP draft

[Roger Riggs]

Please review a JEP to extend deserialization filtering (JEP 290) to 
enable deserialization filters to be selected by the application based 
on the runtime context.

JDK-8263381 <https://bugs.openjdk.java.net/browse/JDK-8263381> Dynamic 
Deserialization Filters

Comments appreciated,  Roger