icegem-cache-utils/src/main/java/com/googlecode/icegem/cacheutils/replication/GuestNode.java
private void debug(String message, Throwable t) {
		if (debugEnabled) {
			long currentTime = System.currentTimeMillis();
			long timeSinceProcessingStart = currentTime - processingStartedAt;
			System.err.println(timeSinceProcessingStart + " ["
				+ localClusterName + "] " + message);

			if (t != null) {
				t.printStackTrace(System.err);
			}
		}
	}
private void debug(String message, Throwable t) {
		if (debugEnabled) {
			long currentTime = System.currentTimeMillis();
			long timeSinceProcessingStart = currentTime - processingStartedAt;
			System.err.println(timeSinceProcessingStart + " ["
				+ localClusterName + "] " + message);

			if (t != null) {
				t.printStackTrace(System.err);
			}
		}
	}
Prints debug information if the debug is enabled

@param message
- the debug message
@param t
- the instance of Throwable