Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8328935

Implement Module Imports

XMLWordPrintable

    • Icon: CSR CSR
    • Resolution: Approved
    • Icon: P4 P4
    • 23
    • tools
    • None
    • source
    • minimal
    • Language construct
    • SE

      Summary

      Enhance the Java language with a new types of imports - an import that can import all exported packages from a module. The main goal is to aid beginner programers.

      Problem

      In order to write a simple program, beginner programmers must often import classes from multiple packages - like java.io and java.util. This is distracting them from their goal at hand, and creates obstacles in learning Java.

      Solution

      We propose that a new type of imports is added to the Java language. This new import would import all the packages exported from a given module.

      For example:

      import module M;

      Should import all packages exported to the current module from M and its transitive dependencies as if they were imported using the type-on-demand imports for the respective packages.

      Some relevant adjustments to the Trees API and JShell API are needed as well.

      Specification

      The current draft JLS changes is attached as a pdf.

      The specdiff for the API changes is attached as specdiff.00.zip, and also available for convenience here: https://cr.openjdk.org/~jlahoda/8328481/specdiff.00/overview-summary.html

      This is a preview language feature.

            jlahoda Jan Lahoda
            jlahoda Jan Lahoda
            Vicente Arturo Romero Zaldivar
            Votes:
            0 Vote for this issue
            Watchers:
            5 Start watching this issue

              Created:
              Updated:
              Resolved: