Hi Tatu,

Yes, this clarifies my doubt over why v2.14.1 didn't work, but the v2.14.2 
did with the new snakeyaml version. Thanks so much.
On Wednesday, March 1, 2023 at 9:53:35 AM UTC+5:30 Tatu Saloranta wrote:

> On Tue, Feb 28, 2023 at 8:18 PM Akhil Ranjan
> <[email protected]> wrote:
> >
> > I use jackson-core:2.14.1 in my application, and I tried upgrading to 
> newly released snakeyaml:2.0, to get rid of vulnerabilities in the earlier 
> snakeyaml version.
> >
> > I started getting the following runtime Exception with the 
> jackson-core:2.14.1 + snakeyaml:2.0 combination :-
> >
> > 
> EXCEPTION=org.yaml.snakeyaml.parser.ParserImpl.<init>(Lorg/yaml/snakeyaml/reader/StreamReader;)V
> >
> > java.lang.NoSuchMethodError: 
> org.yaml.snakeyaml.parser.ParserImpl.<init>(Lorg/yaml/snakeyaml/reader/StreamReader;)V
> >
> > at 
> com.fasterxml.jackson.dataformat.yaml.YAMLParser.<init>(YAMLParser.java:191)
> >
> > at 
> com.fasterxml.jackson.dataformat.yaml.YAMLFactory._createParser(YAMLFactory.java:509)
> >
> > at 
> com.fasterxml.jackson.dataformat.yaml.YAMLFactory.createParser(YAMLFactory.java:413)
> >
> > at 
> com.fasterxml.jackson.dataformat.yaml.YAMLFactory.createParser(YAMLFactory.java:386)
> >
> > at 
> com.fasterxml.jackson.dataformat.yaml.YAMLFactory.createParser(YAMLFactory.java:15)
> >
> > at 
> com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3677)
> >
> > at 
> com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3645)
> >
> >
> > I then upgraded to jackson-core:2.14.2, and the above error was 
> resolved. The latest jackson-core version worked with snakeyaml:2.0.
> >
> > I'm curious above the changes in the jackson-core v2.14.2, that makes it 
> compatible with the new snakeyaml artifact. Release notes for v2.14.2 
> states the following changes
> > :-
> >
> > 2.14.2 (28-Jan-2023) #854: Backport schubfach changes from v2.15#8 
> (contributed by @pjfanning) #882: Allow TokenFIlter to skip last elements 
> in arrays (contributed by Przemyslaw G) #886: Avoid instance creations in 
> fast parser code (contributed by @pjfanning) #890: 
> `FilteringGeneratorDelegate` does not create new `filterContext` if 
> `tokenFilter` is null (contributed by @DemonicTutor)
> > Request inputs on why jackson-core:2.14.2 works with snakeyaml:2.0, but 
> jackson-core:2.14.1 doesn't.
>
> As the stack trace shows, constructor of "ParserImpl":
>
>
> org.yaml.snakeyaml.parser.ParserImpl.<init>(Lorg/yaml/snakeyaml/reader/StreamReader;)V
>
> which version of YAML module 2.14.1 used was removed by SnakeYAML
> version 2.0 -- 1.x -> 2.x is a major version upgrade and as such not
> (guaranteed to be) backwards compatible.
>
> Also note that the version incompatibility is not with `jackson-core`
> but rather with `jackson-dataformat-yaml`.
> You probably upgraded versions of both components.
>
> Release notes for YAML module have the fix listed:
>
> #370: (yaml) Replace use of deprecated constructor of SnakeYAML ParserImpl
> (see https://github.com/FasterXML/jackson-dataformats-text/issues/370 )
>
> Hope this helps,
>
> -+ Tatu +-
>

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