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  1. JDK
  2. JDK-8330027

Identity hashes of archived objects must be based on a reproducible random seed

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    • b23

    Backports

      Description

        CDS archive contains archived objects with identity hashes.

        These hashes are deliberately preserved or even generated during dumping. They are generated based on a seed that is initialized randomly on a per-thread basis. These generations preceede CDS dump initialization, so they are not affected by the init_random call there or by the changes of JDK-8323900.

        A random seed will not work for dumping archives since it prevents reproducible archive generation. Therefore, when dumping, these seeds must be initiated in a reproducible way.

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8332179 Identity hashes of archived objects must be based on a reproducible random seed

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

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8335235 Identity hashes of archived objects must be based on a reproducible random seed

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8329968 os::random should be random

            • P3 - Major loss of function.
            • Resolved

            Enhancement - null JDK-8323900 Avoid calling os::init_random() in CDS static dump

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

            Commit Commit openjdk/jdk21u-dev/75287b56

            Commit Commit openjdk/jdk22u/9b3187f8

            Commit Commit openjdk/jdk/9f43ce5a

            Review Review openjdk/jdk21u-dev/562

            Review Review openjdk/jdk22u/194

            Review Review openjdk/jdk/18735

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                stuefe Thomas Stuefe
                stuefe Thomas Stuefe
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