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https://issues.apache.org/jira/browse/GROOVY-11009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles updated GROOVY-11009:
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Fix Version/s: 3.0.18
> STC resolves wrong method reference
> -----------------------------------
>
> Key: GROOVY-11009
> URL: https://issues.apache.org/jira/browse/GROOVY-11009
> Project: Groovy
> Issue Type: Bug
> Components: Static Type Checker
> Reporter: Thodoris Sotiropoulos
> Assignee: Eric Milles
> Priority: Minor
> Fix For: 3.0.18, 4.0.12
>
>
> This is probably a regression
> I have the following program
> {code}
> import java.util.function.*;
> class Main {
> static final void test() {
> final Function<Double, Double> x = Main::clone;
> }
> public static <T> T clone(T x) { return x; }
> }
> {code}
> h3. Actual behavior
> {code}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
> failed:
> test.groovy: 5: [Static type checking] - Invalid return type:
> java.lang.Object is not convertible to java.lang.Double
> @ line 5, column 40.
> final Function<Double, Double> x = Main::clone;
> ^
> 1 error
> {code}
> h3. Expected behavior
> Compile successfully
> h3. Notes
> Tested against master (commit: c4ee3ce0661eec7d633fc81281d79c8889b3dc66)
> Test case adapted from:
> {code}
> import java.util.function.*;
> class Main {
> static final void test() {
> Function<Double, Double> x = org.apache.commons.lang3.ObjectUtils::clone;
> }
> }
> {code}
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