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  1. JDK
  2. JDK-8231461

static/instance overload leads to 'unexpected static method found in unbound lookup' when resolving method reference

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Details

    • Bug
    • Resolution: Fixed
    • P3
    • 16
    • 11, 14
    • tools
    • b33

    Backports

      Description

        Minimized test case:

        import java.util.function.*;
         
        public class Test {
            public String foo(Object o) { return "foo"; }
            public static String foo(String o) { return "bar"; }

            public void test() {
                Function<String, String> f = Test::foo;
            }
        }

        $ javac -version
        javac 1.8.0_212
        $ javac Test.java
        <OK>

        $ ~/trunks/jdk-jdk/build/linux-x86_64-server-release/images/jdk/bin/javac -version
        javac 14-internal
        $ ~/trunks/jdk-jdk/build/linux-x86_64-server-release/images/jdk/bin/javac Test.java
        Test.java:8: error: incompatible types: invalid method reference
             Function<String, String> f = Test::foo;
             ^
            unexpected static method foo(String) found in unbound lookup
        1 error

        So it works on 8, and fails on 11, 14.

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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-8259753 static/instance overload leads to 'unexpected static method found in unbound lookup' when resolving method reference

            • 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-8260141 static/instance overload leads to 'unexpected static method found in unbound lookup' when resolving method reference

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8008537 Missing method reference lookup error when unbound search finds a static method

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8026231 Look at 'static' flag when checking method references

            • P3 - Major loss of function.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8259721 method Resolve.ReferenceLookupResult::isSuccess can return true even for unsuccessful searches

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

            Commit Commit openjdk/jdk16/ac4cd2e3

            Review Review openjdk/jdk16/107

            Activity

              People

                vromero Vicente Arturo Romero Zaldivar
                shade Aleksey Shipilev
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                Dates

                  Created:
                  Updated:
                  Resolved: