hibernate/hibernate-orm · error · IllegalStateException

Cannot get a connection as the driver manager is not properl

Error message

Cannot get a connection as the driver manager is not properly initialized

What it means

Error "Cannot get a connection as the driver manager is not properly initialized" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/engine/jdbc/connections/internal/DriverManagerConnectionProvider.java:288

		}
		else {
			try {
				return (ConnectionCreatorFactory) Class.forName( connectionCreatorFactoryClassName ).newInstance();
			}
			catch (Exception e1) {
				throw new ServiceException( "Specified ConnectionCreatorFactory " + connectionCreatorFactoryClassName
											+ " could not be loaded", e1 );
			}
		}
	}


	// use the pool ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

	@Override
	public Connection getConnection() throws SQLException {
		if ( state == null ) {
			throw new IllegalStateException( "Cannot get a connection as the driver manager is not properly initialized" );
		}
		return state.getConnection();
	}

	@Override
	public void closeConnection(Connection connection) throws SQLException {
		if ( state == null ) {
			throw new IllegalStateException( "Cannot close a connection as the driver manager is not properly initialized" );
		}
		state.closeConnection( connection );
	}

	@Override
	public boolean supportsAggressiveRelease() {
		return false;
	}

	@Override

View on GitHub (pinned to fad1729dce)

Solutions

1. Configure the JDBC URL and driver so the DriverManagerConnectionProvider initializes
2. Ensure the provider is not used after stop() has been called

When it happens

Trigger: Thrown at hibernate-core/src/main/java/org/hibernate/engine/jdbc/connections/internal/DriverManagerConnectionProvider.java:288 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/4b0589b417e38cf5. Report an issue: GitHub.