HttpCLient uses ByteArrayEntity when sync data

[rushsky518]

HttpCLient uses ByteArrayEntity when sync data

[KomachiSion]

Can you create issue first to discuss why use ByteArrayEntity to replace StringEntity?

[rushsky518]

@KomachiSion

public StringEntity(final String string, final ContentType contentType) throws UnsupportedCharsetException {
	super();
	Args.notNull(string, "Source string");
	Charset charset = contentType != null ? contentType.getCharset() : null;
	if (charset == null) {
		charset = HTTP.DEF_CONTENT_CHARSET;
	}
	this.content = string.getBytes(charset);
	if (contentType != null) {
		setContentType(contentType.toString());
	}
}

byte[] -> String(char[]) -> byte[], this may be unnecessary.
And issue is #2237