[GitHub] [ozone] avijayanhwx commented on pull request #2347: HDDS-5352. java.lang.ClassNotFoundException: org/eclipse/jetty/alpn/ALPN

[GitBox <gi...@apache.org>]

avijayanhwx commented on pull request #2347:
URL: https://github.com/apache/ozone/pull/2347#issuecomment-864623094


   > does it mean the the io.netty packages are shaded into the uber jar, but they are not relocated to classpath org.apache.hadoop.ozone.io.netty? If so it could cause problems if downstream application don't use the same netty version.
   
   Netty is already shaded by Apache Ratis (which is the source of the dependency here). Moreover, we are only skipping the shading where the match phrase is **io!netty!** (Note the '!'). This is to done skip the shading of [this](https://github.com/netty/netty/blob/master/common/src/main/java/io/netty/util/internal/NativeLibraryLoader.java#L118) piece of code that is meant to not be shaded.


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