[COMPRESS-257] 7z should support the BCJ filter

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.6, 1.7
• Fix Version/s: 1.8
• Component/s: Archivers
• Labels: 7zip
• Assignee: Unassigned
• Reporter: Stefan Mueller
• Created: 20/Jan/14 17:19
• Updated: 03/Mar/14 11:19
• Resolved: 03/Mar/14 11:19

Description

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)