Mapping Jar not closed after read --------------------------------- Key: HHH-1017 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1017 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.1 beta 2 Reporter: Gerald Glocker Priority: Minor After reading the mapping jar the file should be closed (Configuration.addJar) . Leaving the file open prevents applications to be undeployed (e.g. in tomcat).