泽西岛Restful依赖版本

Question

I have an application which uses the following Jersey restful web services dependency (Maven):

<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>2.7</version>

And its jar ( jersey-server-2.7.jar ) is actually downloaded (using Maven). However, when I check for this very same dependency in Maven, it shows that the most recently version is 2.17 from 29-Jun-2015. How can this be possible ? The same situation I have for jersey-client-2.7.jar ...

Any hints welcome ! Thanks in advance

Answer 1

They used digits after the dot in the version to specify Java to compile the library (jersey 2.6 coresponds Java 6). It was until java 7 was released (the same for jersey 1.X). Then they kept using ascending numeration. in you case version 2.7 older then 2.17 because 17 >7.