// Открыть соединение с сервером БД
    private void openConnection () {
        try {
            Class.forName ("com.pervasive.jdbc.v2.Driver");
            conn =  DriverManager.getConnection ("jdbc:pervasive://HOST:1583/DATABASE");
            conn.setAutoCommit (false);
            System.out.println ("" + conn.getTransactionIsolation ());
        }
        catch (ClassNotFoundException cnfe) {...);}
        catch (SQLException sqle) {
            ...
        }
    }

Exception in thread "main" java.lang.NoClassDefFoundError: com/pervasive/pscs/Manager
        at com.pervasive.jdbc.lna.LNAAbstractSession.handshake(LNAAbstractSession.java:112)
        at com.pervasive.jdbc.lna.LNASocketSession.handshake(LNASocketSession.java:78)
        at com.pervasive.jdbc.v2.Connection.<init>(Connection.java:81)
        at com.pervasive.jdbc.v2.Driver.connect(Driver.java:57)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at MyProject.openConnection(MyProject.java:120)
        at MyProject.<init>(MyProject.java:67)
        at MyProject.main(MyProject.java:163)
Caused by: java.lang.ClassNotFoundException: com.pervasive.pscs.Manager
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 9 more