Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8199620

Support for JNI object pinning

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 11
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
      gc
    • Resolved In Build:
      b07
    • CPU:
      generic
    • OS:
      generic

      Description

      Currently, the Get/Release*Critical() family of functions use the GCLocker protocol to ensure that no JNI critical arrays are in use when a GC pause is entered.
      Some GCs may instead want to use object pinning and guarantee that the object does not move. For example, this is easy to do with region-based GCs (G1, Shenandoah, ZGC) by simply not including regions with pinned objects in the collection set.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                rkennke Roman Kennke
                Reporter:
                rkennke Roman Kennke
              • Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: