No executions for Predicate as a returned value

[Damtev]

Description

The engine does not produce any executions for the method with java.util.function.Predicate as returning value (possibly it is relevant to other classes from java.util.function as well). In addition, the coverage matcher fails to calculate coverage for such a method.

To Reproduce

Enable and run org.utbot.examples.lambda.SimpleLambdaExamplesTest#testChoosePredicate test.

Expected behavior

2 executions are expected for corresponding matchers with full coverage and the test passes.

Actual behavior

0 executions are generated and coverage calculation fails.

Visual proofs (screenshots, logs, images)

Example:

Environment

useConcreteExecution = true

Additional context

Not applicable.