Till now i worked on custom plugin development but this time i need to modify the following file /jira-project/jira-components/jira-core/src/main/java/com/atlassian/jira/web/action/util/sharing/SharedEntitySearchViewHelper.java in order to increase the dashboard filter search limit from 10 to more.
Appreciate if someone could let me know the approach to modify the above jira source and to deploy it as i never did that before.