Classes not found in Jira 8.0 EAP

Hi

Do you mean 7.13, or previous EAP?

In 7.1.3 and previous versions

What error are you getting? Can you paste the error message?

This is the error for UserPickerUser, the other class throw the same error

Uncaught exception thrown by REST service: com/atlassian/jira/rest/v2/issue/UserPickerUser
java.lang.NoClassDefFoundError: com/atlassian/jira/rest/v2/issue/UserPickerUser
	at com.deiser.jira.profields.rest.internal.v2.helper.UserRestHelper.makeUserPickerBean(UserRestHelper.java:147)
	at com.deiser.jira.profields.rest.internal.v2.helper.UserRestHelper.findUsersAsBean(UserRestHelper.java:98)
	at com.deiser.jira.profields.rest.internal.v2.UserRest.findUsers(UserRest.java:141)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	... 1 filtered
	at java.lang.reflect.Method.invoke(Method.java:498)
	... 19 filtered
	at com.atlassian.plugins.rest.module.RestDelegatingServletFilter$JerseyOsgiServletContainer.doFilter(RestDelegatingServletFilter.java:159)
	... 1 filtered
	at com.atlassian.plugins.rest.module.RestDelegatingServletFilter.doFilter(RestDelegatingServletFilter.java:69)
	... 41 filtered
	at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)
	... 53 filtered
	at com.atlassian.jira.security.JiraSecurityFilter.lambda$doFilter$0(JiraSecurityFilter.java:66)
	... 1 filtered
	at com.atlassian.jira.security.JiraSecurityFilter.doFilter(JiraSecurityFilter.java:64)
	... 16 filtered
	at com.atlassian.plugins.rest.module.servlet.RestSeraphFilter.doFilter(RestSeraphFilter.java:37)
	... 19 filtered
	at com.atlassian.jira.servermetrics.CorrelationIdPopulatorFilter.doFilter(CorrelationIdPopulatorFilter.java:30)
	... 10 filtered
	at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)
	... 4 filtered
	at com.atlassian.web.servlet.plugin.LocationCleanerFilter.doFilter(LocationCleanerFilter.java:36)
	... 26 filtered
	at com.atlassian.jira.servermetrics.MetricsCollectorFilter.doFilter(MetricsCollectorFilter.java:25)
	... 24 filtered
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: com.atlassian.jira.rest.v2.issue.UserPickerUser not found by com.deiser.jira.profields [181]
	at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1639)
	at org.apache.felix.framework.BundleWiringImpl.access$200(BundleWiringImpl.java:80)
	at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2053)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 235 more

Did you check your <Import-Package> directives?

Yes, but I don’t know what I need to put there.
Should I add any directive to import the plugin “jira-rest-plugin”?
As I said before, we don’t need that directive in previous versions of Jira

Thank you @kcichy