com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:

** BEGIN NESTED EXCEPTION **

java.net.SocketException
MESSAGE: java.security.AccessControlException: access denied ("java.net.SocketPermission" "[0:0:0:0:0:0:0:1]:3306" "connect,resolve")

STACKTRACE:

java.net.SocketException: java.security.AccessControlException: access denied ("java.net.SocketPermission" "[0:0:0:0:0:0:0:1]:3306" "connect,resolve")
    at com.mysql.jdbc.StandardSocketFactory.unwrapExceptionToProperClassAndThrowIt(StandardSocketFactory.java:407)
    at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:268)
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:271)
    at com.mysql.jdbc.Connection.createNewIO(Connection.java:2771)
    at com.mysql.jdbc.Connection.<init>(Connection.java:1555)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285)
    at java.sql.DriverManager.getConnection(DriverManager.java:664)
    at java.sql.DriverManager.getConnection(DriverManager.java:247)
    at com.ia.client.IAConnection$1.run(IAConnection.java:27)
    at com.ia.client.IAConnection$1.run(IAConnection.java:24)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.ia.client.IAConnection.<init>(IAConnection.java:24)
    at com.ia.client.IADriver.connect(IADriver.java:31)
    at com.ia.client.IADriver.connect(IADriver.java:14)
    at java.sql.DriverManager.getConnection(DriverManager.java:664)
    at java.sql.DriverManager.getConnection(DriverManager.java:247)
    at Main.main(Main.java:24)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)


** END NESTED EXCEPTION **



Last packet sent to the server was 0 ms ago.
    at com.mysql.jdbc.Connection.createNewIO(Connection.java:2847)
    at com.mysql.jdbc.Connection.<init>(Connection.java:1555)

public class IAConnection implements Connection {

    private Connection connection;
    public static final String USER_PROPERTY_KEY = "user";
    public static final String PASSWORD_PROPERTY_KEY = "password";

    public  IAConnection(String url, Properties info ){
        //if()
        try {
            Class.forName("com.mysql.jdbc.Driver");
            connection = AccessController.doPrivileged(new PrivilegedExceptionAction<Connection>() {
                public Connection run() throws IOException {
                    try {
                        return DriverManager.getConnection("jdbc:mysql://localhost/database-erp",info.getProperty(USER_PROPERTY_KEY),info.getProperty(PASSWORD_PROPERTY_KEY));
                    }catch (Exception e){
                        e.printStackTrace();
                    }
                    return null;
                }
            });
            System.out.println("connection created: "+connection.toString());
        }catch (Exception e){
            e.printStackTrace();
        }

    }
    //other methods
}

public class IADriver implements java.sql.Driver {

    static {
        try {
            // Register the IADriver with DriverManager
            IADriver driverInst = new IADriver();
            DriverManager.registerDriver(driverInst);
            System.setSecurityManager(new RMISecurityManager());
        } catch (Exception e) {
            System.out.print("Error occured:" + e);
        }

    }

    @Override
    public IAConnection connect(String url, Properties info) throws SQLException {
        if (url.contains("proxy")) {
            return new IAConnection(url, info);
        } else {
            return null;
        }
    }

    @Override
    public boolean acceptsURL(String url) throws SQLException {
        return url.contains("proxy");
    }

    @Override
    public DriverPropertyInfo[] getPropertyInfo(String url, Properties info) throws SQLException {
        return new DriverPropertyInfo[0];
    }

    @Override
    public int getMajorVersion() {
        return 0;
    }

    @Override
    public int getMinorVersion() {
        return 0;
    }

    @Override
    public boolean jdbcCompliant() {
        return false;
    }

    @SuppressWarnings("Since15")
    @Override
    public Logger getParentLogger() throws SQLFeatureNotSupportedException {
        return null;
    }
}

public class Main {

    public static void main(String[] args) {
        try {

            Class.forName("com.ia.client.IADriver");
            Connection connnection = DriverManager.getConnection("jdbc:proxy://localhost/database-erp","root","root");
        }catch (Exception e){
            e.printStackTrace();
        }
    }
}