[jira] [Created] (GROOVY-10125) FP Cycle detected in type parameter that extends another type parameter

["Stefanos Chaliasos (Jira)" <ji...@apache.org>]

Stefanos Chaliasos created GROOVY-10125:
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             Summary: FP Cycle detected in type parameter that extends another type parameter
                 Key: GROOVY-10125
                 URL: https://issues.apache.org/jira/browse/GROOVY-10125
             Project: Groovy
          Issue Type: Bug
          Components: Static compilation, Static Type Checker
            Reporter: Stefanos Chaliasos


I have the following Groovy program.
{code:groovy}
@groovy.transform.TypeChecked
class Test<X, Y extends X> {}
{code}
h2. Actual Behavior

The program does not compile, and I get the following error.
{code:java}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Test.groovy: 2: Cycle detected: the type java.lang.Object cannot extend/implement itself or one of its own member types
 @ line 2, column 25.
   class Test<X, Y extends X> {}
                           ^

1 error
{code}
h2. Expected Behavior

Compile successfully.
h2. Comment

This bug is a regression because it compiles successfully with 3.0.8 and 4.0.0-alpha-3. Specifically, the fix of GROOVY-10113 introduced this bug.
h2. Affected Version

This programs have been tested with the compiler from the master (commit: 05a39632565bee88949c8db9d56b9f9598321fc2).



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