Apache Commons Compress 1.5

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The code has origins in other Apache projects like Excalibur, Ant, Commons-IO and jRPM.

The compress component is split into compressors and archivers.

While compressors (un)compress streams that usually store a single entry, archivers deal with archives that contain structured content represented by ArchiveEntry instances which in turn usually correspond to single files or directories.

Currently the bzip2 and gzip formats are supported as compressors where gzip support is provided by the java.util.zip package of the Java class library.

The ar, cpio, tar and zip formats are supported as archivers where the zip implementation provides capabilities that go beyond the features found in java.util.zip.

The compress component provides abstract base classes for compressors and archivers together with factories that can be used to choose implementations by algorithm name.

In the case of input streams the factories can also be used to guess the format and provide the matching implementation.

Requirements:

· Java 1.4 or later

What's New in This Release: [ read full changelog ]

· CompressorStreamFactory has an option to create decompressing streams that decompress the full input for formats that support multiple concatenated streams.

Via: Apache Commons Compress 1.5