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  1. JDK
  2. JDK-8269141

Switch statement containing pattern case label element gets in the loop during execution

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    • b29

    Backports

      Description

        As noted here:
        https://mail.openjdk.java.net/pipermail/compiler-dev/2021-June/017339.html

        The following code, when compiled and ran, runs in an infinite loop:
        ---
            static void test(Integer i) {
                switch (i) {
                    case Integer o && o != null:
                        System.out.println("s1");
                    default:
                        System.out.println("def");
                }
            }
        ---

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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-8269710 Switch statement containing pattern case label element gets in the loop during execution

            • P3 - Major loss of function.
            • 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-8270677 Switch statement containing pattern case label element gets in the loop during execution

            • P3 - Major loss of function.
            • Resolved
            duplicates

            Bug - A problem which impairs or prevents the functions of the product. JDK-8269375 Infinite loop in Pattern switch with guarded patterns in JDK 17 ea27/ea26

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

            Commit Commit openjdk/jdk17/c3c91892

            Review Review openjdk/jdk17/135

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                jlahoda Jan Lahoda
                jlahoda Jan Lahoda
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                  Created:
                  Updated:
                  Resolved: