# Identify and fix code in a multithreaded environment Threading issues arise when multiple threads work with shared data and when they’re dependent on other threads. This section identifies the data that you need to be careful with when working with multiple threads, the operations (or methods) that can lead to threading issues, the order of operations, and how to get around all of these issues. Let’s get started with identifying the data that the threads can share among themselves. Only when you know what data can be shared, will you be able to identify how it can be fixed. --- # Agent Instructions: 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: ``` GET https://gyansetu-java.gitbook.io/core-java/threads/identify-and-fix-code-in-a-multithreaded-environment.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.