User development, A new message was posted in the thread "Hibernate tools keeps lock on HSQLDB": http://community.jboss.org/message/531883#531883 Author : Coen Damen Profile : http://community.jboss.org/people/coenos Message: -------------------------------------------------------------- Hi,   I have HSQLDB 1.8.1.2 installed and I am trying to create a Hibernate configuration. I have done this several times already for Oracle, Derby and now HSQLDB. However, with HSQLDB I keep getting the following Exception when refreshing the Hibernate config:   java.sql.SQLException: The database is already in use by another process: org.hsqldb.persist.NIOLockFile@7a80f893[file =C:\Apps\hsqldb_1_8_1_2\hsqldb\data\seamdemoDB.lck, exists=true, locked=false, valid=false, fl =null]: java.lang.Exception: checkHeartbeat(): lock file [C:\Apps\hsqldb_1_8_1_2\hsqldb\data\seamdemoDB.lck] is presumably locked by another process   I searched the web and apparently Eclipse is keeping the seamdemoDB.lck alive. When I close Eclipse the lock file dissappears. I know I am able to change all to a MEM db but I do not want this.   Today I upgraded Eclipse to use the latest JBoss tools and after a clean install, it worked once, then after an Eclipse restart, it failed again.   Does anyone have a solution for this or do I need to raise a JIRA issue?   Thanks!   Coenos -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/531883#531883