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  1. JDK
  2. JDK-8288596

Random:from() adapter does not delegate to supplied generator in all cases

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    • b21
    • b29
    • Verified

    Backports

      Description

        As per the spec : https://download.java.net/java/early_access/jdk19/docs/api/java.base/java/util/Random.html#from(java.util.random.RandomGenerator)

        " If the generator is an instance of Random, it is returned. Otherwise, this method returns an instance of Random that delegates all methods except setSeed to the generator."

        Expectation :
        Any method of RandomGenerator invocation on the returned instance of adpater method shall delegate to the supplied RandomGenerator except for setSeed.

        Actual :
        Not all methods of RandomGenerator are delegated

        Attached a sample to demonstrate the issue.

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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-8289488 Random:from() adapter does not delegate to supplied generator in all cases

            • P2 - Crashes, loss of data, severe memory leak.
            • 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-8291206 Random:from() adapter does not delegate to supplied generator in all cases

            • P2 - Crashes, loss of data, severe memory leak.
            • 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-8291369 Random:from() adapter does not delegate to supplied generator in all cases

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

            CSR - null JDK-8282928 provide adapter from RandomGenerator to Random

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

            Commit Commit openjdk/jdk19/57089749

            Review Review openjdk/jdk19/36

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                rgiulietti Raffaello Giulietti
                kganapureddy Krushnareddy Ganapureddy
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                  Created:
                  Updated:
                  Resolved: