Use of unexported JVM class in Bitbucket plugin

Question

In the Bitbucket plugin project I am working on I am using kerb4j-client in order to establish kerberized connection to 3rd party service. com.kerb4j kerb4j-client 0.0.8 compile kerb4j-client depends on kerb4j-common which in turn refers to com.sun.security.auth.module.Krb5LoginModule class which is the one I am getting NoClassDefFoundError when trying to run the plugin flow. The Krb5LoginModule is a part of JVM and exists in both JDK/JRE's rt.jar, at least as of the v1.8.0_181 I am using. I checked the MANIFEST.MF from the plugin jar and do see "com.sun.security.auth.module;version=0;resolution:=optional" there I checked /plugins/servlet/upm/osgi on the server but when expanding my plugin "Import Package" section the report around it looks like this: com.google.gson version: 0, resolution: optional Provided by System Bundle com.sun.security.auth.module version: 0, resolution: optional javax.annotation version: 0, resolution: optional Provided by System Bundle Understandably, when looking under System Bundle "Export Package" no com.sun.security.auth.module is listed. What would be the approach to resolve this?

Gonchik Tsymzhitov · Answer

Approach, is using the last version of spring scanner

https://bitbucket.org/atlassian/atlassian-spring-scanner/src