java.sql.SQLException: Io exception: The Network Adapter could not establish the connection

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E/A-Exception: The Network Adapter could not establish the connection
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:138)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:175)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:287)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:328)
at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:430)
at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:151)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:608)
at oracle.oc4j.sql.DriverDataSource.getConnection(DriverDataSource.java:116)
at oracle.oc4j.sql.DriverDataSource.getConnection(DriverDataSource.java:75)
at oracle.oc4j.sql.DataSourceConnectionPoolDataSource.getPooledConnection(DataSourceConnectionPoolDataSource.java:57)
at oracle.oc4j.sql.xa.EmulatedXADataSource.getXAConnection(EmulatedXADataSource.java:92)
at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createXAConnection(ManagedConnectionFactoryImpl.java:211)
at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createManagedConnection(ManagedConnectionFactoryImpl.java:170)
at com.evermind.server.connector.ApplicationConnectionManager.createManagedConnection(ApplicationConnectionManager.java:1461)
at oracle.j2ee.connector.ConnectionPoolImpl.createManagedConnectionFromFactory(ConnectionPoolImpl.java:329)
at oracle.j2ee.connector.ConnectionPoolImpl.access$900(ConnectionPoolImpl.java:100)
at oracle.j2ee.connector.ConnectionPoolImpl$FixedWaitPoolingScheme.getManagedConnection(ConnectionPoolImpl.java:1518)
at oracle.j2ee.connector.ConnectionPoolImpl.getManagedConnection(ConnectionPoolImpl.java:792)
at oracle.oc4j.sql.ConnectionPoolImpl.getManagedConnection(ConnectionPoolImpl.java:45)
at com.evermind.server.connector.ApplicationConnectionManager.getConnectionFromPool(ApplicationConnectionManager.java:1700)
at com.evermind.server.connector.ApplicationConnectionManager.acquireConnectionContext(ApplicationConnectionManager.java:1640)
at com.evermind.server.connector.ApplicationConnectionManager.allocateConnection(ApplicationConnectionManager.java:1580)
at oracle.j2ee.connector.OracleConnectionManager.unprivileged_allocateConnection(OracleConnectionManager.java:265)
at oracle.j2ee.connector.OracleConnectionManager.allocateConnection(OracleConnectionManager.java:214)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:272)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:200)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:142)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:127)
at oracle.bpel.services.notification.repos.NotificationPersistencyDriver.getConnection(NotificationPersistencyDriver.java:170)

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