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From "Stefan Bodewig (JIRA)" <>
Subject [jira] [Commented] (COMPRESS-467) Could not unzip the file properly
Date Fri, 19 Oct 2018 04:52:00 GMT


Stefan Bodewig commented on COMPRESS-467:

I see. Your file consists of multiple bz2 streams, you need to enable "decompressConcatenated"
be using the two-arg constructor of {{BZip2CompressorInputStream}} passing in {{true}} as
the second argument. I.e.

    public static void main(String[] args) throws Exception {
        try (BZip2CompressorInputStream i = new BZip2CompressorInputStream(new FileInputStream("HS_H08_20180927_0600_B02_FLDK_R10_S0110.DAT.bz2"),
             OutputStream o = new FileOutputStream("test")) {
            IOUtils.copy(i, o);

The result I get is identical to the one {{bunzip2}} creates on my Linux system.

> Could not unzip the file properly
> ---------------------------------
>                 Key: COMPRESS-467
>                 URL:
>             Project: Commons Compress
>          Issue Type: Bug
>         Environment: Window 7
>            Reporter: Yang Lin
>            Priority: Major
>              Labels: windows
>         Attachments: HS_H08_20180927_0600_B02_FLDK_R10_S0110.DAT.bz2
> When I use WinRAR unzip one file, I can get the result file properly which size is about
24,200,000 bytes. But I use commons-compress unzip this file, can only get 900,000 bytes(Operation
process: sourceFile -> byte[] -> InputStream). In another way to unzip this file using
commons-compress, sourceFile -> InputStream, throw Exception: Stream
is not in the BZip2 format, at org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream.init(
> Thank you in advance!

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