JPetManager test fix
JPetManager test fix


Former-commit-id: 0c4e9a5806f6c1dea5b03e624037bd04c44b3cbe
kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework