Uploaded image for project: 'Calcite'
  1. Calcite
  2. CALCITE-2027

Drop support for Java 7 (JDK 1.7)

VotersWatch issueWatchersLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Trivial
    • Resolution: Fixed
    • None
    • 1.16.0
    • None
    • None

    Description

      Drop support for Java 7 (also known as JDK 1.7):

      • The code would no longer compile under JDK 7
      • Compiler would have source 1.8 target 1.8
      • Class files would run on JDK 8 and higher
      • Developers can use Java 8 syntax such as lambdas and default methods

      We would continue to build and run under JDK 8 and 9.

      I think it would be best to wait a while before converting existing code to Java 8 style (e.g. converting SAM anonymous classes to lambdas) because code changes might be extensive.

      I expect there will be cases that we want to change interfaces so that they are easier to use as lambdas. Let's make those changes cautiously when we come across them, and mark existing interfaces and methods deprecated until we remove them in 2.0.

      Let's give at least one release notice of this change. In 1.15 (the next release) let's announce that this will be the last release that supports Java 7. So this will be fixed for 1.16.

      Attachments

        Issue Links

        Activity

          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            julianhyde Julian Hyde
            julianhyde Julian Hyde
            Votes:
            2 Vote for this issue
            Watchers:
            8 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment