> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/android/get-started/faq/detach-current-thread.md). # DetachCurrentThread warnings World's #1 PDF SDK Library for Web, Mobile, Server, Desktop Question: > We are receiving a warning report whenever we load a pdf in our app: `Native thread exiting without having called DetachCurrentThread (maybe it's going to use a pthread_key_create destructor?) Thread[69,tid=19749,Native,Thread*=0x8d0a0800,peer=0x13451100,"Thread-2434"]` This gets called several times though I am unsure as to the origin of the problem. Is this an error that has been reported before? Please rest assured that this is not an error. Internally Apryse SDK uses pthread to create and cleanup threads. As this warning suggested, the thread will be cleaned up properly through the destructor. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.apryse.com/android/get-started/faq/detach-current-thread.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.