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Return the contained value, if present, otherwise throw an exception to be
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A specialized Writer that writes to a file in the file system. All write
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Uses a one-way hash function to turn an arbitrary number of bytes into a
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The TimerTask class represents a task to run at a specified time. The task may
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A plug-in replacement for JDK1.5 java.util.concurrent.ConcurrentHashMap. This
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An Executor that provides methods to manage termination and methods that can
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Defines a general exception a servlet can throw when it encounters difficulty.
- Best IntelliJ plugins