rest-assured/src/main/java/io/restassured/config/DecoderConfig.java
@SuppressWarnings("UnusedDeclaration")
    public DecoderConfig defaultContentCharset(Charset charset) {
        String charsetAsString = notNull(charset, Charset.class).toString();
        return new DecoderConfig(charsetAsString, useNoWrapForInflateDecoding, true, contentDecoders, contentTypeToDefaultCharset);
    }
@SuppressWarnings("UnusedDeclaration")
    public DecoderConfig defaultContentCharset(Charset charset) {
        String charsetAsString = notNull(charset, Charset.class).toString();
        return new DecoderConfig(charsetAsString, useNoWrapForInflateDecoding, true, contentDecoders, contentTypeToDefaultCharset);
    }
@ SuppressWarnings ( "UnusedDeclaration" ) public DecoderConfig defaultContentCharset ( Charset charset ) { String charsetAsString = notNull ( charset , Charset . class ) . toString ( ) ; return new DecoderConfig ( charsetAsString , useNoWrapForInflateDecoding , true , contentDecoders , contentTypeToDefaultCharset ) ; }
Specify the default charset of the content in the response that's assumed if no charset is explicitly specified in the response.

@param charset The expected charset
@return A new instance of the DecoderConfig.
Specify the default charset of the content in the response that s assumed if no charset is explicitly specified in the response .