An atomic reference to a frozen Kotlin object. Can be used in concurrent scenarious but frequently shall be of nullable type and be zeroed out (with compareAndSwap(get(), null)) once no longer needed. Otherwise memory leak could happen.

AtomicReference(value_: T)

The referenced value. Gets the value or sets the new value. If new value is not null, it must be frozen or permanent object.

var value: T

Compares value with expected and replaces it with new value if values matches. Note that comparison is identity-based, not value-based.

fun compareAndSet(expected: T, new: T): Boolean

Compares value with expected and replaces it with new value if values matches. Note that comparison is identity-based, not value-based. If new value is not null, it must be frozen or permanent object.

fun compareAndSwap(expected: T, new: T): T

Returns the string representation of this object.

fun toString(): String