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A Java representation of the SQL TIMESTAMP type. It provides the capability of
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Timers schedule one-shot or recurring TimerTask for execution. Prefer
java.util.concurrent.Scheduled
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Factory and utility methods for Executor, ExecutorService,
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A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
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Patterns are compiled regular expressions. In many cases, convenience methods
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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