Remove additional APIs deprecated for removal in 6.1

[sbrannen]

Overview

This is a follow up to gh-29449.

Candidates

• org.springframework.scheduling.support.CronSequenceGenerator
• org.springframework.http.codec.multipart.DefaultPartHttpMessageReader.setStreaming(boolean)
• org.springframework.http.server.reactive.AbstractServerHttpRequest

For Removal in 6.2

See #30608

• org.springframework.util.Base64Utils was only marked for removal in a 6.0.x maintenance release, to be removed in 6.2.
• org.springframework.http.client.AbstractClientHttpResponse was only marked for removal in 6.1, though deprecated in 6.0.
• org.springframework.http.client.ClientHttpResponse.getRawStatusCode() was only marked for removal in 6.1, though deprecated in 6.0.
• org.springframework.http.client.observation.ClientHttpObservationDocumentation.HighCardinalityKeyNames.CLIENT_NAME was only marked for removal in a 6.0.x maintenance release, to be removed in 6.2
• org.springframework.web.reactive.function.client.ClientHttpObservationDocumentation.HighCardinalityKeyNames.CLIENT_NAME was only marked for removal in a 6.0.x maintenance release, to be removed in 6.2
• org.springframework.web.filter.reactive.ServerWebExchangeContextFilter.get(Context)
• org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler.handleBindException(BindException, HttpHeaders, HttpStatusCode, WebRequest)
• org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver.handleBindException(BindException, HttpServletRequest, HttpServletResponse, Object)
• org.springframework.web.reactive.HandlerResult
• org.springframework.web.reactive.socket.client.JettyWebSocketClient
• org.springframework.web.socket.client.jetty.JettyWebSocketClient

[poutsma]

I have removed the APIs that I marked for removal.

Note that AbstractClientHttpResponse and ClientHttpResponse.getRawStatusCode() were only marked for removal in 6.1—though deprecated in 6.0, so I think we should wait with removing those until 6.2.

[sbrannen]

@rstoyanchev, it appears that the remaining items fall under your area of expertise, so I've assigned this issue to you.

[rstoyanchev]

The remaining ones are relatively recent deprecations, 6.0.6 for ServerWebExchangeContextFilter, 6.0.7 for ResponseEntityExceptionHandler and DefaultHandlerExceptionResolver, and 6.0 for HandlerResult and the JettyWebSocketClient implementations. I think they can wait until 6.2.

[hantsy]

What is the replacement of CronSequenceGenerator?

[poutsma]

What is the replacement of CronSequenceGenerator?

It says so right in the Javadoc

[hantsy]

What is the replacement of CronSequenceGenerator?

It says so right in the Javadoc

Thanks.
Try to update my sample and found it is missing in the imports.