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  1. JDK
  2. JDK-8003820

Deprecate untested and rarely used GC combinations

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    • gc
    • b15

    Backports

      Description

        The GC combinations ParNew + SerialOld and DefNew + CMS are very rarely used. There are no use cases that we know of where these are superior to other GC combinations.

        We are currently not doing active testing on these combinations.

        To simplify the GC combination matrix and make sure that we have resources to test all GC combinations that we support we would like to remove these two combinations. The plan is to deprecate these combinations in JDK8 and remove them in JDK9.

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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-8006479 Deprecate untested and rarely used GC combinations

            • P3 - Major loss of function.
            • Resolved
            relates to

            Enhancement - null JDK-8005396 Use ParNew with only one thread instead of DefNew as default for CMS on single CPU machines

            • P3 - Major loss of function.
            • Resolved

            Enhancement - null JDK-8006398 Add regression tests for deprectated GCs

            • P3 - Major loss of function.
            • Resolved

            Enhancement - null JDK-8039566 Remove GC combinations deprecated in JDK 8

            • P3 - Major loss of function.
            • Resolved

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                brutisso Bengt Rutisson (Inactive)
                brutisso Bengt Rutisson (Inactive)
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