Add boot42-preview module: Spring Boot 4.2.0-M2 vs 4.1.1 forwarded headers, AMQP starters, buildpack cache, RestTemplate removal warnings

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Gth99spB1CzQmBFofXmU4Z
This commit is contained in:
Claude
2026-09-28 08:40:07 +00:00
parent 3e2029ab3a
commit acd63e658b
24 changed files with 608 additions and 0 deletions
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# 05-resttemplate-deprecations (javac -Xlint:deprecation on src/broken/UsesRestTemplate.java)
--- Spring Boot 4.1.1
--- Spring Boot 4.2.0-M2
UsesRestTemplate.java:8: warning: [removal] RestTemplate in org.springframework.web.client has been deprecated and marked for removal
RestTemplate viaBuilder(RestTemplateBuilder builder) {
^
UsesRestTemplate.java:8: warning: [removal] RestTemplateBuilder in org.springframework.boot.restclient has been deprecated and marked for removal
RestTemplate viaBuilder(RestTemplateBuilder builder) {
^
UsesRestTemplate.java:12: warning: [removal] TestRestTemplate in org.springframework.boot.resttestclient has been deprecated and marked for removal
TestRestTemplate viaTest(TestRestTemplate t) {
^
UsesRestTemplate.java:12: warning: [removal] TestRestTemplate in org.springframework.boot.resttestclient has been deprecated and marked for removal
TestRestTemplate viaTest(TestRestTemplate t) {
^
UsesRestTemplate.java:16: warning: [removal] RestTemplate in org.springframework.web.client has been deprecated and marked for removal
RestTemplate plain() {
^
UsesRestTemplate.java:17: warning: [removal] RestTemplate in org.springframework.web.client has been deprecated and marked for removal
return new RestTemplate();
^
6 warnings