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Identifier names play a significant role in program comprehension activities,with high-quality names improving developer productivity and system quality. Tocorrect poor-quality names, developers rename identifiers to reflect theirintended purpose better. However, renames do not always result in high-quality,long-lasting names; in many cases, developers perform multiple renameoperations on the same identifier throughout the system's lifetime. In thispaper, we report on a large-scale empirical study that examines the occurrenceof identifiers undergoing multiple renames (i.e., rename chains). Our findingsshow the presence of rename chains in almost every project, with methodstypically having more rename chains than other identifier types. Furthermore,it is usually the same developer responsible for creating all renames within achain, with most names maintaining the same grammatical structure.Understanding rename chains can help us provide stronger advice, and targetedresearch, on how to craft high-quality, long-lasting identifiers.

Rename Chains: An Exploratory Study on the Occurrence and Characteristics of Identifiers Undergoing Multiple Renamings