Prevent IndexOutOfBoundsException for synthetic parameters in Kotlin suspend functions

[denysgaievskyi]

Context

Problem

Kotlin suspend functions include a synthetic Continuation parameter that is added by the compiler. When sendParameterEvent iterates through method parameters and tries to access corresponding arguments, it encounters an index mismatch because:

• The parameters array includes the synthetic continuation parameter
• The arguments list does not include the continuation (or has fewer elements)
• This causes an IndexOutOfBoundsException when accessing arguments.get(argumentIndex)

Solution

Enhanced the parameter filtering logic in sendParameterEvent to skip synthetic parameters in addition to existing JUnit injectable checks. The method now:

• Checks parameter.isSynthetic() to identify compiler-generated parameters
• Validates argumentIndex >= arguments.size() before accessing the arguments list
• Only increments argumentIndex for non-skipped parameters

Checklist

• Sign Allure CLA
• Provide unit tests

[CLAassistant]

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