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Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
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A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
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HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- ThreadPoolExecutor (java.util.concurrent)
An ExecutorService that executes each submitted task using one of possibly
several pooled threads, n
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Central representation of an Ant project. This class defines an Ant project with
all of its targets,
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