https://DevOpsCloud.io -- Cloud Monk Losang Jinpa, Ph.D., MCSE/MCT, GitOps DevOps Engineer

Java InMemoryFileSystem refers to an implementation of a file system that stores files entirely in memory, as opposed to on disk. It is useful for testing, temporary data storage, or in-memory processing scenarios. While not part of the Java standard library, InMemoryFileSystem can be implemented using Java's java.nio package or third-party libraries. In-memory file systems are often used in situations where high performance and fast data access are needed without the overhead of actual disk I/O.

https://docs.oracle.com/javase/8/docs/api/java/nio/file/package-summary.html