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ObjectMapper provides functionality for reading and writing JSON, either to and
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The TimerTask class represents a task to run at a specified time. The task may
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A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
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An int value that may be updated atomically. See the java.util.concurrent.atomic
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A Java virtual machine.
A VirtualMachine represents a Java virtual machine to which this Java vir
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