[ https://issues.jboss.org/browse/JBIDE-21125?page=com.atlassian.jira.plugi... ] Andre Dietisheim commented on JBIDE-21125: ------------------------------------------ I see the error being used in: {code} public ConnectionNotFoundException(IResource resource) { super("Unable to find the connection for a {0} named {1}", resource.getKind(), resource.getName()); } {code} which is throws when a connection for a given resource is being looked up: {code} public class ConnectionsRegistryUtil { ... public static Connection getConnectionFor(IResource resource) { Connection connection = safeGetConnectionFor(resource); if(connection == null) { throw new ConnectionNotFoundException(resource); } return connection; } {code} which is being used in various places upon application creation. It compares client lib instances which I guess can change upon re-connects. I also see this being used in other related places like explorer watches etc. I'd love to get more repdroducible details on when this happens to you. -- This message was sent by Atlassian JIRA (v6.4.11#64026)