[debbugs-tracker] bug#37665: closed (Concatenation of gzip compressed bytearray)

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Your message dated Tue, 8 Oct 2019 09:52:31 -0700
with message-id <address@hidden>
and subject line Re: bug#37665: Concatenation of gzip compressed bytearray
has caused the debbugs.gnu.org bug report #37665,
regarding Concatenation of gzip compressed bytearray
to be marked as done.

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37665: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=37665
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--- Begin Message --- Subject: Concatenation of gzip compressed bytearray Date: Tue, 8 Oct 2019 10:28:49 -0500

Hello there,

Our team has a use case where we want to concatenate gzip-compressed byte arrays. We do compression with GZIPOutputStream.java with Java 8 and decompression with GZIPInputStream.java. 

In a simple test case I compressed several instances of byte[] with GZIPOutputStream and output the compressed results to several instances of byte[], and then put all of them into a ByteBuffer. Then I tried to decompress the concatenated data in the final ByteBuffer with GZIPInputStream.

And I found that sometimes this works as expected but other times the last few instances of input byte[] are ignored by GZIPInputStream(it seems to get EOF at the end of a compressed byte[], which is not the last compressed byte[] in the ByteBuffer) I was testing with the default setting.

So does this mean that GZIPInputStream and GZIPOutputStream don't support such operation by design or is there something we can configure/change for this to work?

Regards,

Zhu

--- End Message ---

> --- Begin Message ---
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> Subject: 
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> Re: bug#37665: Concatenation of gzip compressed bytearray
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> Date: 
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> Tue, 8 Oct 2019 09:52:31 -0700
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> User-agent: 
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> Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0
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> On 10/8/19 8:28 AM, Zhu Li wrote:
> > does this mean that GZIPInputStream and GZIPOutputStream don't support
> > such operation by design
>
> Sorry, but you seem to be writing about some gzip-compatible software, 
> not about gzip itself. Please write to whoever maintains that other 
> software, instead of to bug-gzip.
>
>
> --- End Message ---