1. A method comprising: recording, via a hardware recording logic, a program that has been executed in a hybrid transactional memory (HyTM) system that includes hardware transactional memory (HTM) and software transactional memory (STM); replaying the recorded program, via a debugger that includes a replayer engine to replay instructions of the program, including providing one or more replayed instructions for non-transactional execution if the one or more replayed instructions are non-transactional instructions and providing one or more other replayed instructions for transactional execution, including providing a HTM instruction to a software emulator to replay the HTM instruction by emulation of the HTM and providing a STM instruction for replay through use of the STM; identifying one or more conflicts in the program via replaying the program including analyzing the one or more conflicts in the one or more replayed instructions in a post transaction instruction handler; and resolving the one or more conflicts in a HyTM contention manager, the HyTM contention manager to emulate a second HyTM contention manager used in the TM program recording.