[OSM-talk] problems with differential update?

[Maarten Deen]

On 2019-04-11 22:40, mmd wrote:
> Am 11.04.19 um 21:33 schrieb Frederik Ramm:
>> Hi,
>> 
>> On 4/11/19 21:26, Roland Olbricht wrote:
>>> Could it have been that the file triggered an arcane bug in a gz 
>>> library
>>> from the Java universe?
>> 
>> Yes, that's exactly the problem - these files decompress fine with 
>> gzip,
>> just not with Java.
>> 
> 
> Nothing really new here. That's exactly the same thing which happened
> two months ago:
> https://lists.openstreetmap.org/pipermail/talk/2019-February/082057.html

Does the determination in java follow the same rules (or even the same 
library) as file(1)? In its manpage it says
> file tests each argument in an attempt to classify it. There are three 
> sets of tests, performed in this order: filesystem tests, magic tests, 
> and language tests. The first test that succeeds causes the file type 
> to be printed.

Is there any similarity in the first bytes of the zipped file?

Regards,
Maarten