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An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
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SortedSet is a Set which iterates over its elements in a sorted order. The order
is determined eithe
- Timer (java.util)
Timers schedule one-shot or recurring TimerTask for execution. Prefer
java.util.concurrent.Scheduled
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Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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