public static void setReaderBuffer(BufferedReader reader, char[] buffer) {
		try {
			BR_SET_BUFFER.invokeExact(reader, buffer);
		} catch (Throwable t) {
			logger.error("Failed to set buffer for reader", t);
			throw new AssertionError(t);
		}
	}
Updates underlying buffer of a given {@link BufferedReader}.

@param reader
		Reader to update.
@param buffer
		Buffer to set.
recaf-core/src/main/java/software/coley/recaf/util/UnsafeIO.java