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- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- DateFormat (java.text)
Formats or parses dates and times.This class provides factories for obtaining
instances configured f
- ReentrantLock (java.util.concurrent.locks)
A reentrant mutual exclusion Lock with the same basic behavior and semantics as
the implicit monitor
- Modifier (javassist)
The Modifier class provides static methods and constants to decode class and
member access modifiers
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