The Atomics.isLockFree() static method is used to determine whether the Atomics methods use locks or atomic hardware operations when applied to typed arrays with the given element byte size. It is intended as an optimization primitive, so that high-performance algorithms can determine whether to use locks or atomic operations in critical sections. If an atomic primitive is not lock-free, it is often more efficient for an algorithm to provide its own locking.

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The values() method of Map instances returns a new map iterator object that contains the values for each element in this map in insertion order.

The URIError() constructor creates URIError objects.

The add() method of WeakSet instances appends a new object to the end of this WeakSet.

A captured OS thread stack backtrace.

The with() method of Array instances is the copying version of using the bracket notation to change the value of a given index. It returns a new array with the element at the given index replaced with the given value.

The toReversed() method of Array instances is the copying counterpart of the reverse() method. It returns a new array with the elements in reversed order.

The Array() constructor creates Array objects.

The current status of a backtrace, indicating whether it was captured or whether it is empty for some other reason.