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https://issues.apache.org/jira/browse/GROOVY-10992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles updated GROOVY-10992:
---------------------------------
Priority: Minor (was: Major)
> Unexpected type mismatch when calling a parameterized function with a bounded
> type parameter
> --------------------------------------------------------------------------------------------
>
> Key: GROOVY-10992
> URL: https://issues.apache.org/jira/browse/GROOVY-10992
> Project: Groovy
> Issue Type: Bug
> Components: Static Type Checker
> Reporter: Thodoris Sotiropoulos
> Priority: Minor
>
> Possible regression? Groovyc 4.0.10 compiles the program
> I have the following program
> {code}
> import java.util.function.Supplier;
> import java.util.function.BinaryOperator;
> import java.util.stream.Stream;
> class Main {
> static final <X extends Number> void test() {
> Supplier<Stream<X>> x = null;
> X y = null;
> BinaryOperator<X> z = null;
> X result = x.get().reduce(y, z);
> }
> }
> {code}
> h3. Actual behavior
> {code}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
> failed:
> test.groovy: 11: [Static type checking] - Cannot call
> java.util.stream.Stream#reduce(X, java.util.function.BinaryOperator<X extends
> java.lang.Number>) with arguments [X, java.util.function.BinaryOperator<X>]
> @ line 11, column 16.
> X result = x.get().reduce(y, z);
> ^
> 1 error
> {code}
> h3. Expected behavior
> Compile successfully
> Notes: The type parameter X should have an upper bound in order to trigger
> the error.
> Tested against master (commit: a29ce1ce64d565526b70e145ace665dd0617ec9b)
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