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Return the contained value, if present, otherwise throw an exception to be
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An output stream that writes bytes to a file. If the output file exists, it can
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Provides an abstract class to be subclassed to create an HTTP servlet suitable
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Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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The Color class is used to encapsulate colors in the default sRGB color space or
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