57  DataLayer  INFO   [main] openjpa.Runtime - Starting OpenJPA 3.1.2
121  DataLayer  INFO   [main] openjpa.jdbc.JDBC - Using dictionary class "org.ap
ache.openjpa.jdbc.sql.DerbyDictionary".
Exception in thread "main" <openjpa-3.1.2-r66d2a72 nonfatal general error> org.a
pache.openjpa.persistence.PersistenceException: There were errors initializing y
our configuration: <openjpa-3.1.2-r66d2a72 fatal user error> org.apache.openjpa.
util.UserException: A connection could not be obtained for driver class "org.apa
che.derby.jdbc.EmbeddedDriver" and URL "jdbc:derby:mojadatabaza".  You may have 
specified an invalid URL.
    at org.apache.openjpa.jdbc.schema.DataSourceFactory.newConnectException(DataSou
rceFactory.java:272)
    at org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFac
tory.java:122)
    at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactory(J
DBCConfigurationImpl.java:924)
    at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getConnectionFactory(JDBC
ConfigurationImpl.java:804)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Metho
d)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodA
ccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Delegatin
gMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.apache.openjpa.lib.conf.ConfigurationImpl.instantiateAll(ConfigurationIm
pl.java:330)
    at org.apache.openjpa.conf.OpenJPAConfigurationImpl.instantiateAll(OpenJPAConfi
gurationImpl.java:1963)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrokerF
actory.java:667)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFact
ory.java:207)
    at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBroker
Factory.java:166)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:262)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:177)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:167)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:64)
    at registry.dataaccesslayer@0.0.1/dataaccesslayer.managing.Manager.setUpDataAcc
ess(Manager.java:24)
    at registry.businesslayer/businesslayer.datahandlers.DataAccessManager.setUpDat
aAccess(DataAccessManager.java:11)
    at justtestingTEMP/justtestingTEMP.Main.main(Main.java:27)
Caused by: java.lang.ClassNotFoundException: org.apache.derby.jdbc.EmbeddedDrive
r
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoade
r.java:581)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoa
ders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    at java.base/java.lang.Class.forName0(Native Method)
    at java.base/java.lang.Class.forName(Class.java:315)
    at org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFac
tory.java:84)
    ... 18 more

    at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFact
ory.java:222)
    at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBroker
Factory.java:166)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:262)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:177)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:167)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:64)
    at registry.dataaccesslayer@0.0.1/dataaccesslayer.managing.Manager.setUpDataAcc
ess(Manager.java:24)
    at registry.businesslayer/businesslayer.datahandlers.DataAccessManager.setUpDat
aAccess(DataAccessManager.java:11)
    at justtestingTEMP/justtestingTEMP.Main.main(Main.java:27)
Caused by: java.lang.RuntimeException: There were errors initializing your confi
guration: <openjpa-3.1.2-r66d2a72 fatal user error> org.apache.openjpa.util.User
Exception: A connection could not be obtained for driver class "org.apache.derby
.jdbc.EmbeddedDriver" and URL "jdbc:derby:mojadatabaza".  You may have specified
 an invalid URL.
    at org.apache.openjpa.jdbc.schema.DataSourceFactory.newConnectException(DataSou
rceFactory.java:272)
    at org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFac
tory.java:122)
    at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactory(J
DBCConfigurationImpl.java:924)
    at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getConnectionFactory(JDBC
ConfigurationImpl.java:804)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Metho
d)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodA
ccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Delegatin
gMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.apache.openjpa.lib.conf.ConfigurationImpl.instantiateAll(ConfigurationIm
pl.java:330)
    at org.apache.openjpa.conf.OpenJPAConfigurationImpl.instantiateAll(OpenJPAConfi
gurationImpl.java:1963)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrokerF
actory.java:667)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFact
ory.java:207)
    at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBroker
Factory.java:166)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:262)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:177)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:167)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
EntityManagerFactoryImpl.java:64)
    at registry.dataaccesslayer@0.0.1/dataaccesslayer.managing.Manager.setUpDataAcc
ess(Manager.java:24)
    at registry.businesslayer/businesslayer.datahandlers.DataAccessManager.setUpDat
aAccess(DataAccessManager.java:11)
    at justtestingTEMP/justtestingTEMP.Main.main(Main.java:27)
Caused by: java.lang.ClassNotFoundException: org.apache.derby.jdbc.EmbeddedDrive
r
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoade
r.java:581)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoa
ders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    at java.base/java.lang.Class.forName0(Native Method)
    at java.base/java.lang.Class.forName(Class.java:315)
    at org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFac
tory.java:84)
    ... 18 more

    at org.apache.openjpa.lib.conf.ConfigurationImpl.instantiateAll(ConfigurationIm
pl.java:345)
    at org.apache.openjpa.conf.OpenJPAConfigurationImpl.instantiateAll(OpenJPAConfi
gurationImpl.java:1963)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrokerF
actory.java:667)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFact
ory.java:207)
    ... 8 more