private void increaseSize(final int newSize) {
			final char[] newBuffer = new char[newSize];
			System.arraycopy(buffer, 0, newBuffer, 0, index);
			buffer = newBuffer;
		}
Allows appending chars in bulks to {@link StringBuilder}.

@since 8.2
@version 8.2
jenetics.ext/src/main/java/io/jenetics/ext/util/CsvSupport.java