question: public static void generateExtensionManager ( File rootFolder ) throws IOException { File outFile = new File ( rootFolder , REGISTRY_PATH ) ; StringBuilder builder = new StringBuilder ( ) ; builder . append ( "package org.eclipse.che.ide.client;\n\n" ) ; generateImports ( builder ) ; generateClass ( builder ) ; FileUtils . writeStringToFile ( outFile , builder . toString ( ) ) ; }
target:  Generate to source of the class.