Database connection is failed. 
  java.lang.RuntimeException: java.sql.SQLRecoverableException: Ошибка ввода/вывода: The Network Adapter could not establish the connection
      at org.talend.core.model.metadata.builder.database.JDBCDriverLoader.getConnection(JDBCDriverLoader.java:195)
      at org.talend.core.model.metadata.builder.database.ExtractMetaDataUtils.connect(ExtractMetaDataUtils.java:1092)
      at org.talend.core.model.metadata.builder.database.ExtractMetaDataFromDataBase.testConnection(ExtractMetaDataFromDataBase.java:315)
      at org.talend.core.model.metadata.builder.database.ExtractMetaDataFromDataBase.testConnection(ExtractMetaDataFromDataBase.java:301)
      at org.talend.designer.core.ui.editor.properties.controllers.DbTableController.checkConnection(DbTableController.java:769)
      at org.talend.designer.core.ui.editor.properties.controllers.DbTableController$6.run(DbTableController.java:558)
      at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
  Caused by: java.sql.SQLRecoverableException: Ошибка ввода/вывода: The Network Adapter could not establish the connection
      at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:489)
      at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:553)
      at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:254)
      at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
      at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
      at org.talend.core.model.metadata.builder.database.DriverShim.connect(DriverShim.java:41)
      at org.talend.core.model.metadata.builder.database.JDBCDriverLoader.getConnection(JDBCDriverLoader.java:186)
      ... 6 more
  Caused by: oracle.net.ns.NetException: The Network Adapter could not establish the connection
      at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:439)
      at oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:454)
      at oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:693)
      at oracle.net.ns.NSProtocol.connect(NSProtocol.java:251)
      at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1140)
      at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:340)
      ... 12 more
  Caused by: java.net.SocketTimeoutException: Connect timed out
      at java.net.SocksSocketImpl.readSocksReply(Unknown Source)
      at java.net.SocksSocketImpl.connect(Unknown Source)
      at java.net.Socket.connect(Unknown Source)
      at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:149)
      at oracle.net.nt.ConnOption.connect(ConnOption.java:133)
      at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:405)
      ... 17 more