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  1. JDK
  2. JDK-8222525

[lworld] Runtime support for LW2 Arrays

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    • New Feature
    • Resolution: Fixed
    • P2
    • repo-valhalla
    • repo-valhalla
    • hotspot

    Description

       LW2 array covariance:

      "[QFoo;" <: "[LFoo;” <: “[LObject;” <: “Object;"

      We can freely allow widening conversion, but not narrowing. I.e. narrow checkcast must match [Q...

      https://mail.openjdk.java.net/pipermail/valhalla-dev/2019-April/005600.html

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8223017 [lworld] checkcast/instance broken for LW2 arrays

          • P2 - Crashes, loss of data, severe memory leak.
          • Resolved

          Enhancement - null JDK-8223387 [lworld] reflection support for LW2 arrays

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8220716 [lworld] C2 support for LW2 arrays

          • P2 - Crashes, loss of data, severe memory leak.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8220788 [lworld] C1 support for LW2 Arrays

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Enhancement - null JDK-8222401 [lworld] LW2 array support in verifier

          • P3 - Major loss of function.
          • Resolved

          Enhancement - null JDK-8222402 [lworld] LW2 array support in javac

          • P3 - Major loss of function.
          • Resolved

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              dsimms David Simms
              dsimms David Simms
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