@Restricted(NoExternalUse.class) // TODO Java 9 make private default PrintWriter _error(String prefix, String msg) { PrintStream out = getLogger(); out.print(prefix); out.println(msg); // annotate(new HudsonExceptionNote()) if and when this is made to do something Charset charset = getCharset(); return new PrintWriter(charset != null ? new OutputStreamWriter(out, charset) : new OutputStreamWriter(out), true); }