Trying to hot-fix s3 bug. Hangs in reads from ContentAsInputStream

[ChGen]

Trying to hot-fix s3 bug. Hangs in reads from ContentAsInputStream.inputStream().
Instances of PublisherAs(content) can read data from content correctly, so two new methods were introduced, which use byte[] instead of InputStream.

[ChGen]

@dgarus , please review/comment. This is more like a hot-fix, but it passes all tests locally for asto, conda-adapter & artipie.

[olenagerasimova]

@ChGen I've checked com.artipie.conda.meta.MergedJson.Jackson class and method merge() and noticed, that JsonParser is not closed anywhere in this method. Have you tried to call close()?

As for this approach... The whole idea of this class is NOT TO READ PUBLISHER INTO BYTE ARRAY, so I do not agree with adding these methods into asto. Fix for conda can be done inside conda via PublisherAs(content).getBytes(), no need to add these strange methods into asto

[ChGen]

@olenagerasimova , thanks, I'll try your suggestions. I understand that reading all to byte array isn't good anyway, but I'd rather to publish working hotfix in predictable manner, and than debug this properly as a next step.

[ChGen]

Actually, metadata is small, compared to the artifacts, so we are quite safe with that.

[ChGen]

Hotfix provided in artipie/artipie#1351