## Package org.apache.tools.ant.util

Interface Summary
FileNameMapper: Interface to be used by SourceFileScanner.
TimeoutObserver: Interface for classes that want to be notified by Watchdog.

Class Summary
CollectionUtils: A set of helper methods related to collection manipulation.
DateUtils: Helper methods to deal with date/time formatting with a specific defined format (ISO8601) or a plurialization correct elapsed time in minutes and seconds.
DOMElementWriter: Writes a DOM tree to a given Writer.
FileUtils: This class also encapsulates methods which allow Files to be refered to using abstract path names which are translated to native system file paths at runtime as well as copying files or setting there last modification time.
FlatFileNameMapper: Implementation of FileNameMapper that always returns the source file name without any leading directory information.
GlobPatternMapper: Implementation of FileNameMapper that does simple wildcard pattern replacements.
IdentityMapper: Implementation of FileNameMapper that always returns the source file name.
JavaEnvUtils: A set of helper methods related to locating executables or checking conditons of a given Java installation.
JAXPUtils: Collection of helper methods that retrieve a ParserFactory or Parsers and Readers.
KeepAliveOutputStream: Class that can be used to wrap `System.out` and `System.err` without getting anxious about any client closing the stream.
LoaderUtils: ClassLoader utility methods
MergingMapper: Implementation of FileNameMapper that always returns the same target file name.
PackageNameMapper: Maps directory name matches into a dotted package name.
RegexpPatternMapper: Implementation of FileNameMapper that does regular expression replacements.
ResourceUtils: this class provides utility methods to process resources
SourceFileScanner: Utility class that collects the functionality of the various scanDir methods that have been scattered in several tasks before.
StringUtils: A set of helper methods related to string manipulation.
TaskLogger: A facade that makes logging nicers to use.
Watchdog: Generalization of `ExecuteWatchdog`

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