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Provides access to system-related information and resources including standard
input and output. Ena
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This SocketException may be thrown during socket creation or setting options,
and is the superclass
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This class consists exclusively of static methods that operate on or return
collections. It contains
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A Set is a data structure which does not allow duplicate elements.
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A plug-in replacement for JDK1.5 java.util.concurrent.ConcurrentHashMap. This
version is based on or
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A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
#acquire blocks if
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