It looks like the tests that were failing related to some invalid files 
(deliberate test cases for these invalid files). The POI code catches the 
ZipException and checks the Exception message - and the message has changed.

I have updated the POI code to check for the new message as well as the old 
message.

I think this should be enough. Apologies for the noise.



On 2024/02/20 15:59:12 PJ Fanning wrote:
> Hi everyone,
> 
> I upgraded Apache POI to use the latest commons-compress 1.26.0 release. POI 
> processes Microsoft format files like xlsx and docs files - these formats are 
> basically zip files with XML and other files contained within.
> 
> The issue seems to be that commons-compress 1.26.0 requires signatures.
> 
> We get exceptions like this:
> 
> java.util.zip.ZipException: Cannot find zip signature within the file
> 
> Most of the test files that have were created by Excel or Word or Powerpoint.
> 
> Is there a way to disable this zip signature check? Any advice would be 
> appreciated.
> 
> Regards,
> PJ
> 
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