java.lang.UnsatisfiedLinkError: no ocijdbc9 in java.library.path
        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1682)
        at java.lang.Runtime.loadLibrary0(Runtime.java:823)
        at java.lang.System.loadLibrary(System.java:1030)
        at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:262)
        at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:346)
        at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:468)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:314)
        at org.netbeans.modules.db.explorer.DbDriverManager.getConnection(DbDriverManager.java:128)
        at org.netbeans.modules.db.explorer.DatabaseConnection.doConnect(DatabaseConnection.java:592)
        at org.netbeans.modules.db.explorer.DatabaseConnection.access$100(DatabaseConnection.java:101)
        at org.netbeans.modules.db.explorer.DatabaseConnection$2.run(DatabaseConnection.java:644)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)