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The specified driver class "null" is neither a java.sql.Driver nor a javax.sql.DataSource. Please specify a valid driver in the javax.jdo.option.ConnectionDriverName property.
com.solarmetric.kodo.runtime.FatalUserException: The specified driver
class "null" is neither a java.sql.Driver nor a javax.sql.DataSource.
Please specify a valid driver in the javax.jdo.option.ConnectionDriverName
property.	at com.solarmetric.kodo.impl.jdbc.runtime.ConfigurationConnector.createConnectionFactory(ConfigurationConnector.java:110)	at com.solarmetric.kodo.impl.jdbc.runtime.ConfigurationConnector.(ConfigurationConnector.java:67)	at com.solarmetric.kodo.impl.jdbc.runtime.ConfigurationConnector.(ConfigurationConnector.java:59)	at com.solarmetric.kodo.impl.jdbc.schema.SchemaTool.main(SchemaTool.java:1122)	at com.solarmetric.kodo.impl.jdbc.schema.SchemaTool.main(SchemaTool.java:1102)