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An exception that indicates a failed JDBC operation. It provides the following
information about pro
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The base class for all formats. This is an abstract base class which specifies
the protocol for clas
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A parser that parses a text string of primitive types and strings with the help
of regular expressio
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Factory for creating Log instances, with discovery and configuration features
similar to that employ
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
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The Color class is used to encapsulate colors in the default sRGB color space or
colors in arbitrary
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