jodd-core/src/main/java/jodd/io/watch/DirWatcher.java
protected void init() {
		File[] filesArray = dir.listFiles();

		filesCount = 0;

		if (filesArray != null) {
			filesCount = filesArray.length;

			for (File file : filesArray) {
				if (!acceptFile(file)) {
					continue;
				}

				map.put(file, new MutableLong(file.lastModified()));
			}
		}
	}
protected void init() {
		File[] filesArray = dir.listFiles();

		filesCount = 0;

		if (filesArray != null) {
			filesCount = filesArray.length;

			for (File file : filesArray) {
				if (!acceptFile(file)) {
					continue;
				}

				map.put(file, new MutableLong(file.lastModified()));
			}
		}
	}
Initializes dir watcher by reading all files
from watched folder.