Foreign key violation during cascade delete ------------------------------------------- Key: JBAS-1098 URL: http://jira.jboss.com/jira/browse/JBAS-1098 Project: JBoss Application Server Issue Type: Bug Security Level: Public(Everyone can see) Components: CMP service Affects Versions: JBossAS-3.2.6 Final Reporter: SourceForge User Assigned To: Alexey Loubyansky Fix For: No Release SourceForge Submitter: sflexus . JBoss 3.2.5, JDK 1.4.2_04, Linux. I have CMP Entity Customer and CMP entity Album with the following relationships: 1) 1 Customer has Many Albums 2) 1 Customer has 1 Album "Inbox" 3) 1 Customer has 1 Album "Private" 4) 1 Customer has 1 Album "Recycle Bin" So basically there are 3 Albums each of which has double relationship to Customer, both 1-1 and 1-M Relationship (1) has cascade-delete on Album side, so if customer is deleted, all his albums should be deleted. Relationships (2)-(4) has NO cascade-delete setting, since (1) should be enough, as it references ALL customer's albums, including those referenced in (2)-(4). There are other entities related to Customer in the application, but they seem non-important (at first sight). If I try to remove Customer instance, I get foreigh key violation in the database. All foreign keys were created by JBoss itself. I have attached TRACE-level log. What happens is that all 3 albums (inbox, private and recycle bin, their IDs are 162, 163 and 164) are scheduled for cascade delete, but only the one with ID=164 is updated to set its CMR column to NULL before issuing DELETE FROM Customer SQL. The foreign key fk_album_owner which is being violated corresponds to relation (1) "1 Customer has Many Albums". The interesting thing is that if I redeploy the application and issue remove again, it completes normally! Looks like it depends on some cache state. Two files are attached. First one demonstrates foreign key violation, second one demonstrates success deletion after application is redeployed.