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Full garbage collection on a BlackBerry device

The full garbage collection operation executes for 1 second on average and should take less than 2 seconds to complete. The full garbage collection operation performs the following actions:

  • It performs a RAM garbage collection operation.
  • It marks objects in flash memory that are no longer referenced or no longer persisted.
  • It releases any nonpersistent object handles in RAM and flash memory.

The system might initiate a full garbage collection operation in the following situations:

  • The BlackBerry® Java® Virtual Machine cannot allocate an object because of a lack of available space in RAM.
  • A process is about to exceed its currently allocated heap size.
  • The BlackBerry JVM cannot allocate a new object because the object handles are not available.
  • The BlackBerry device is idle.

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