in maven-wrapper-distribution/src/resources/mvn/wrapper/MavenWrapperDownloader.java [66:88]
private static void downloadFileFromURL( URL wrapperUrl, Path wrapperJarPath )
throws IOException
{
log( " - Downloading to: " + wrapperJarPath );
if ( System.getenv( "MVNW_USERNAME" ) != null && System.getenv( "MVNW_PASSWORD" ) != null )
{
final String username = System.getenv( "MVNW_USERNAME" );
final char[] password = System.getenv( "MVNW_PASSWORD" ).toCharArray();
Authenticator.setDefault( new Authenticator()
{
@Override
protected PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication( username, password );
}
} );
}
try ( InputStream inStream = wrapperUrl.openStream() )
{
Files.copy( inStream, wrapperJarPath, StandardCopyOption.REPLACE_EXISTING );
}
log( " - Downloader complete" );
}