OPPO Kernel Craftsman
Mar 3, 2023 · Mobile Development
Understanding Java Object Locks and Their Implementation in the Android Runtime (ART)
The article explains how Java’s synchronized keyword works by describing instance, static and block locks, the monitor‑enter/exit bytecodes, the ART object header’s lock word states (thin, fat, hash, forwarding), lock inflation mechanisms, and the internal runtime functions that implement Object.wait(), notify() and related futex handling.
Android RuntimeConcurrencyJVM
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