private void createIfNotExists(String dir, String file) throws IOException {
        final File f = new File(dir + "/" + file);
        if (f.createNewFile()) {
            createdFiles.add(f);
        }
    }
Class for testing HandlersConfigurer.
Not for public use.

If possible, please avoid using this class and HandlersConfigurer in your tests

@author Tony Vaagenes
@author gjoranv
container-search/src/test/java/com/yahoo/container/core/config/testutil/HandlersConfigurerTestWrapper.java