in src/main/java/org/apache/maven/doxia/linkcheck/DefaultLinkCheck.java [273:289]
public void setEncoding( String encoding )
{
if ( encoding == null || encoding.isEmpty() )
{
throw new IllegalArgumentException( "encoding is required" );
}
try
{
Charset.forName( encoding );
}
catch ( UnsupportedCharsetException e )
{
throw new IllegalArgumentException( "encoding '" + encoding + "' is unsupported" );
}
this.encoding = encoding;
}