For building HttpRequest you should use addContentType instead of contentTypeOfBody.
Replace ignorableDeserializer of ResponseDeserializer to toStringDeserializer
The 2.x.x version don't have back compatibility with version 1.x.x.
Replace getType of ResponseBodyReaderContext to getGenericType.
The method getType of ResponseBodyReaderContext now returns Class the type that is to be read from the entity
stream.
Replace setUseDefaultReader(boolean useDefaultReader) of HttpRequestBuilder to enableDefaultBodyReader
or disableDefaultBodyReader
Rename method path of WebTarget to setPath. The path method now adds path to existed path instead of replacing,
for replace use setPath method.
Replace all org.apache.http package's classes by appropriate httpclient5 classes.
Rename anywhere getAllHeaders method by getHeaders.
Methods getStatusCode of classes Response and ResponseHandler become deprecated use getCode instead.
When building http client by ClientBuilder the default connect timeout increased from 5 to 10 seconds.
Remove methods with explicit body that typically do not include a body e.g WebTarget.get(String),
WebTarget.head(String)
Support with WebTarget.request(HttpMethod, HttpEntity) still present.
Rename addDefaultDateDeserializationPattern of HttpRequestBuilder has been renamed to
addResponseDefaultDateDeserializationPattern.
Removed support default deserialization of joda.time module. To achieve that, provide custom Json or Xml mapper e.g(
HttpRequestBuilder.setDefaultJsonMapper(mapper)) or use custom response deserializer.