[jira] [Created] (GROOVY-10997) Unexpected type mismatch when using super on a bounded type parameter

[Thodoris Sotiropoulos (Jira)]

Thodoris Sotiropoulos created GROOVY-10997:
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             Summary: Unexpected type mismatch when using super on a bounded 
type parameter
                 Key: GROOVY-10997
                 URL: https://issues.apache.org/jira/browse/GROOVY-10997
             Project: Groovy
          Issue Type: Bug
          Components: Static Type Checker
            Reporter: Thodoris Sotiropoulos


I have the following program

{code}
import java.util.stream.*;
import java.util.function.*;

class Main {
  static final <Y, I extends Y> void test() {
    Stream<I> x = null;
    Consumer<Y> y = null;

    x.forEach(y);
  }
}
{code}

h3. Actual behavior

{code}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
groovy30.groovy: 9: [Static type checking] - Cannot call 
java.util.stream.Stream#forEach(java.util.function.Consumer<? super I>) with 
arguments [java.util.function.Consumer<Y>]
 @ line 9, column 5.
       x.forEach(y);
       ^

1 error
{code}

h3. Expected behavior

Compile successfully

Tested against master (commit: 72cae725137e3a610b94e6927b18587c439f6f9b)



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