Mappings mappings = new MappingsReader().read( new FileReader( inMappingsFile ) );
convertMappings( sourceJar, destJar, mappings, fallbackMatching );
// write out the converted mappings
FileWriter writer = new FileWriter( outMappingsFile );
new MappingsWriter().write( writer, mappings );
writer.close();
System.out.println( "Wrote converted mappings to:\n\t" + outMappingsFile.getAbsolutePath() );
}