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This exception is thrown when a program attempts to create an URL from an
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Legacy security code; do not use.
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A connection represents a link from a Java application to a database. All SQL
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A Set is a data structure which does not allow duplicate elements.
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A map that has its keys ordered. The sorting is according to either the natural
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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