init DriverManager.logWriter. Question 51533343 on stackoverflow.

java.sql.Driver

MyDriver

MyDriver.java

import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.DriverPropertyInfo;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.Properties;
import java.util.logging.Logger;

public class MyDriver implements Driver {

  static {
    DriverManager.setLogWriter(new PrintWriter(System.out));
  }

  @Override
  public Connection connect(String url, Properties info) throws SQLException {
    return null;
  }

  @Override
  public boolean acceptsURL(String url) throws SQLException {
    return false;
  }

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

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

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

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

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

UseDriver.java

import java.sql.DriverManager;

public class UseDriver {
  public static void main(String[] args) {
    DriverManager.getDrivers();
  }
}

File structrue

• META-INF
  • services
    • java.sql.Driver
• MyDriver.java
• UseDriver.java

Run

• javac *.java
• java UseDriver

You will get

DriverManager.initialize: jdbc.drivers = null
JDBC DriverManager initialized