Hello everybody. I made a small tutorial starting up with hibernate from scratch using PostGreSQL and it worked fine. I switched to Oracle Express Edition with the following hibernate.cfg.xml
Code:
<hibernate-configuration>
<session-factory>
<property name="dialect">org.hibernate.dialect.OracleDialect</property>
<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="connection.username">SYSTEM</property>
<property name="connection.password">secure</property>
<property name="connection.url">jdbc:oracle:thin:@localhost:8081:xe</property>
<mapping resource="domain/Person.hbm.xml"/>
</session-factory>
</hibernate-configuration>
When i execute the same code (which worked with PostGreSQL) i get an exception:
Code:
7422 [main] WARN org.hibernate.cfg.SettingsFactory - Could not obtain connection to query metadata
java.sql.SQLException: Got minus one from a read call
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:412)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:133)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:111)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2119)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2115)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1339)
at database.HibernateUtil.<init>(HibernateUtil.java:21)
at database.HibernateUtil.getInstance(HibernateUtil.java:26)
at control.Controller.createDatabase(Controller.java:15)
at control.BusinessAdministration.main(BusinessAdministration.java:11)
Caused by: oracle.net.ns.NetException: Got minus one from a read call
at oracle.net.ns.Packet.receive(Packet.java:285)
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:286)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1042)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:301)
... 15 more
And then the application seems to try it again and i get the following exception:
Code:
4218 [main] ERROR org.hibernate.tool.hbm2ddl.SchemaExport - schema export unsuccessful
java.sql.SQLException: Got minus one from a read call
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:412)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:133)
at org.hibernate.tool.hbm2ddl.ManagedProviderConnectionHelper.prepare(ManagedProviderConnectionHelper.java:52)
at org.hibernate.tool.hbm2ddl.SchemaExport.execute(SchemaExport.java:252)
at org.hibernate.tool.hbm2ddl.SchemaExport.create(SchemaExport.java:211)
at database.HibernateUtil.createDatabase(HibernateUtil.java:33)
at control.Controller.createDatabase(Controller.java:15)
at control.BusinessAdministration.main(BusinessAdministration.java:11)
Caused by: oracle.net.ns.NetException: Got minus one from a read call
at oracle.net.ns.Packet.receive(Packet.java:285)
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:286)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1042)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:301)
... 13 more
Please note that i call the ExportSchema.create first (I seem to get the first exception there)
And then i try to insert something into the database (I get the second exception there i think)
Has anyone an idea what it could be?
Thanks in advance!
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