}

	/**
	 * @return has the monitored location changed
	 */
	public boolean hasChanged() {
		boolean result = false;
		InputStream is = null;
		byte[] currDigest = null;

		try {
			// get a grip on our resource

			is = this.locate();

			if (is == null) {
				String msg = "Unable to find the following resource : " + this.getLocation();
				this.logger.warn(msg);
			} else {
				// calculate a SHA-1 digest
				currDigest = this.getDigest(is);
				is.close();
				is = null;

				if (this.isFirstInvocation() == true) {
					isFirstInvocation = false;
					this.logger.debug("Storing SHA-1 digest of " + this.getLocation());
					this.setDigest(currDigest);
				} else {
					if (equals(this.digest, currDigest) == false) {
						this.logger.debug("The following resource has changed : " + this.getLocation());
						this.setDigest(currDigest);
						result = true;
					}
				}
			}

			return result;
		} catch (Exception e) {
			String msg = "The ShutdownService encountered an internal error";
			this.logger.error(msg, e);
			return false;
		} finally {
			if (is != null) {
				try {
					is.close();
				} catch (Exception e) {
					String msg = "Can't close the InputStream during error recovery";
					this.logger.error(msg, e);
				}
			}
		}

	}

	/**
	 * @return Returns the serviceList.
	 */
	public String[] getServiceList() {