1.2.3

## Mature Generation

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Mature objects are objects that have been promoted from the Young generation after living past the promotion threshold ‘X’.

Autotune is the mechanism that is used to dynamic adjust the GC cycles before mature collection occurrs. This can be turned off or a static number may be used via gc.lifetime. gc.lifetime is used by autotune which sets the initial value.

For more information on configuration variables available read the vm configuration source file