EntityManagerFactory factory = Persistence.createEntityManagerFactory("tenant-ds");

com.mchange.v2.c3p0.PoolBackedDataSource@af54f843 [ connectionPoolDataSource -> com.mchange.v2.c3p0.WrapperConnectionPoolDataSource@11c99405 [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, debugUnreturnedConnectionStackTraces -> false, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> 1b607zk9m62dk6p19bz035|3466e94a, idleConnectionTestPeriod -> 3000, initialPoolSize -> 5, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 1800, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 20, maxStatements -> 50, maxStatementsPerConnection -> 0, minPoolSize -> 5, nestedDataSource -> com.mchange.v2.c3p0.DriverManagerDataSource@bdd72e1e [ description -> null, driverClass -> null, factoryClassLocation -> null, identityToken -> 1b607zk9m62dk6p19bz035|7c557ec2, jdbcUrl -> jdbc:mysql://localhost:3306/db_empresa1?autoReconnect=true, properties -> {user=******, password=******, autocommit=true} ], preferredTestQuery -> null, propertyCycle -> 0, statementCacheNumDeferredCloseThreads -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, usesTraditionalReflectiveProxies -> false; userOverrides: {} ], dataSourceName -> null, factoryClassLocation -> null, identityToken -> 1b607zk9m62dk6p19bz035|2ba06ec9, numHelperThreads -> 3 ]
Informações:   HHH000400: Using dialect: org.hibernate.dialect.MySQL5InnoDBDialect
Informações:   HHH000424: Disabling contextual LOB creation as createClob() method threw error : java.lang.reflect.InvocationTargetException
Informações:   HHH000268: Transaction strategy: org.hibernate.engine.transaction.internal.jdbc.JdbcTransactionFactory
Informações:   HHH000397: Using ASTQueryTranslatorFactory

entityManager = factory.createEntityManager();