Spring Boot 3.2 supports Jetty 12 but the most recent SolrJ version (9.4.1) still depends on Jetty 10 as HTTP client implementation. Hence, CMCC 12 apps connecting to Solr depend on Jetty 10 HTTP client. This incompatibility may lead to Exceptions caused by java.lang.NoSuchMethodError: 'org.eclipse.jetty.client.Request org.eclipse.jetty.client.HttpClient.newRequest(java.net.URI)' when an application depends on SolrJ and uses a Spring RestTemplate without explicitly configuring a HTTP client request factory. Solutions are to either adding a runtime dependency on org.apache.httpcomponents.client5:httpclient5 (which takes precedence over the Jetty HTTP client) or to explicitly configure the HTTP client request factory.