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java.sql.SQLNonTransientConnectionException: Communications error while establishing connection.	at com.ingres.gcf.util.SqlExType.getSqlEx(SqlExType.java:97)	at com.ingres.gcf.util.SqlExFactory.get(SqlExFactory.java:68)	at com.ingres.gcf.util.SqlExFactory.get(SqlExFactory.java:158)	at com.ingres.gcf.util.SqlExFactory.get(SqlExFactory.java:197)	at com.ingres.gcf.dam.MsgIo.connect(MsgIo.java:357)	at com.ingres.gcf.dam.MsgOut.connect(MsgOut.java:325)	at com.ingres.gcf.dam.MsgIn.connect(MsgIn.java:343)	at com.ingres.gcf.dam.MsgConn.(MsgConn.java:274)	at com.ingres.gcf.jdbc.DrvConn.connect(DrvConn.java:716)	at com.ingres.gcf.jdbc.DrvConn.(DrvConn.java:462)	at com.ingres.gcf.jdbc.JdbcDrv.connect(JdbcDrv.java:590)	at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.createConnection(JDBCConnection.java:206)	at org.eclipse.datatools.connectivity.DriverConnectionBase.internalCreateConnection(DriverConnectionBase.java:104)	at org.eclipse.datatools.connectivity.DriverConnectionBase.open(DriverConnectionBase.java:53)	at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.open(JDBCConnection.java:72)	at org.eclipse.datatools.enablement.ingres.internal.connectivity.IngresConnectionFactory.createConnection(IngresConnectionFactory.java:60)	at org.eclipse.datatools.connectivity.internal.ConnectionFactoryProvider.createConnection(ConnectionFactoryProvider.java:83)	at org.eclipse.datatools.connectivity.internal.ConnectionProfile.createConnection(ConnectionProfile.java:355)	at org.eclipse.datatools.connectivity.ui.PingJob.createTestConnection(PingJob.java:76)	at org.eclipse.datatools.connectivity.ui.PingJob.run(PingJob.java:59)	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)