Added @ConditionalOnMissingBean on NettyRoutingFilter and NettyWriteResponseFilter

Fixes: #3823

Signed-off-by: Author Name <[email protected]>
Signed-off-by: usrivastava92 <[email protected]>

Author: usrivastava92

spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/config/GatewayAutoConfiguration.java

@@ -831,13 +831,15 @@ public HttpClientProperties httpClientProperties() {
 
 		@Bean
 		@ConditionalOnEnabledGlobalFilter
+		@ConditionalOnMissingBean(NettyRoutingFilter.class)
 		public NettyRoutingFilter routingFilter(HttpClient httpClient,
 				ObjectProvider<List<HttpHeadersFilter>> headersFilters, HttpClientProperties properties) {
 			return new NettyRoutingFilter(httpClient, headersFilters, properties);
 		}
 
 		@Bean
 		@ConditionalOnEnabledGlobalFilter(NettyRoutingFilter.class)
+		@ConditionalOnMissingBean(NettyWriteResponseFilter.class)
 		public NettyWriteResponseFilter nettyWriteResponseFilter(GatewayProperties properties) {
 			return new NettyWriteResponseFilter(properties.getStreamingMediaTypes());
 		}