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1. Hibernate connection problem with struts2    coderanch.com

My CRUD application in struts2 with Hibernate3 is working fine, but when I tried to update, delete or view option with very little interval in that case I got following error and Hibernate could not establish connection with database. java.sql.SQLException: Listener refused the connection with the following error: ORA-12519, TNS:no appropriate service handler found The Connection descriptor used by the client ...