# JPL 3.x Objectives

- enable Prolog applications to exploit any Java classes, instances, methods etc. (without requiring any wrappers, metadata etc. to be set up first)
- enable Java applications to manipulate any Standard Prolog libraries, predicates, etc. (without requiring any wrappers, metadata etc. to be set up first)
- enable hybrid Prolog+Java applications to be designed and implemented so as to take best advantage of both language systems, and to be testable, debuggable, maintainable etc.
- minimum impact deployability: runtime support for Prolog+Java apps must be a position-independent, self-sufficient filestore tree, requiring no changes to registries, system libraries, system configuration files etc.
- minimum dependency deployability: as with JVMs, the Prolog+Java runtime support must depend upon nothing which cannot be taken for granted in healthy OS installations
- minimum vulnerability deployability: the Prolog+Java runtime support must be immune to legitimate variations in its environment (PATH settings, other applications and libraries including other Prolog+Java apps, etc.)
- (to be developed...)