[jira] [Created] (COMPRESS-257) 7z: Unsupported compression method

["Stefan Mueller (JIRA)" <ji...@apache.org>]

Stefan Mueller created COMPRESS-257:
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             Summary: 7z: Unsupported compression method
                 Key: COMPRESS-257
                 URL: https://issues.apache.org/jira/browse/COMPRESS-257
             Project: Commons Compress
          Issue Type: Bug
          Components: Archivers
    Affects Versions: 1.7, 1.6
            Reporter: Stefan Mueller
            Priority: Minor


I created an archiv with 7zip 9.20 containing the 7-ZipPortable directory. Already tried to use a copy of the directory, so 

the program does not archive itself. The standard setting where used:
Compression level: normal
Compression method: lzma2
Dictionary size: 16 MB
Word size: 32
Solid Block size: 2 GB

Small amount of code:
//Open archive
SevenZFile input = new SevenZFile(new File(arcName));

SevenZArchiveEntry entry;
while((entry = input.getNextEntry()) != null)
{...}

The exception thrown:

java.io.IOException: Unsupported compression method [3, 3, 1, 3]
	at org.apache.commons.compress.archivers.sevenz.Coders.addDecoder(Coders.java:51)
	at org.apache.commons.compress.archivers.sevenz.SevenZFile.buildDecoderStack(SevenZFile.java:849)
	at org.apache.commons.compress.archivers.sevenz.SevenZFile.buildDecodingStream(SevenZFile.java:817)
	at org.apache.commons.compress.archivers.sevenz.SevenZFile.getNextEntry(SevenZFile.java:150)
	at compress.SevenZipError.main(SevenZipError.java:36)




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