public void setIfModifiedSince(long modified_since) { ifModifiedSince = modified_since; }
public void setIfModifiedSince(long ifmodifiedsince) { if (connected) throw new IllegalStateException("Already connected");  ifModifiedSince = ifmodifiedsince; }
	public void setIfModifiedSince(long modified_since) {		ifModifiedSince = modified_since;	}