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A connection to a URL for reading or writing. For HTTP connections, see
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A specific moment in time, with millisecond precision. Values typically come
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Locale represents a language/country/variant combination. Locales are used to
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A plug-in replacement for JDK1.5 java.util.concurrent.ConcurrentHashMap. This
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An int value that may be updated atomically. See the java.util.concurrent.atomic
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