Add boot42-rc1-checklist module: Spring Boot 4.2.0-RC1 upgrade checklist run against RC1 and 4.1.2

boot42-rc1-checklist/output/01-default-value-placeholders-on-4.1.2.txt

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+# 01-default-value-placeholders  (Spring Boot 4.1.2, JDK 25)
+no demo.* properties set:      zone = ${demo.region:eu}-primary   plain = static-value
+demo.region=ap:                zone = ${demo.region:eu}-primary
+int property, placeholder default: context FAILED to start
+root cause: java.lang.NumberFormatException
+            For input string: "${demoport.number:8080}"

boot42-rc1-checklist/output/01-default-value-placeholders.txt

@@ -0,0 +1,4 @@
+# 01-default-value-placeholders  (Spring Boot 4.2.0-RC1, JDK 25)
+no demo.* properties set:      zone = eu-primary   plain = static-value
+demo.region=ap:                zone = ap-primary
+int property, placeholder default: number = 8080

boot42-rc1-checklist/output/02-kafka-admin-binding-on-4.1.2.txt

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+# 02-kafka-admin-binding  (Spring Boot 4.1.2, JDK 25)
+properties supplied: 5
+IGNORED  spring.kafka.listener.admin.client-id
+IGNORED  spring.kafka.listener.admin.fail-fast
+IGNORED  spring.kafka.listener.await-async-results-on-stop
+IGNORED  spring.kafka.template.admin.client-id
+IGNORED  spring.kafka.template.admin.fail-fast
+bound = 0 of 5
+listener.isAwaitAsyncResultsOnStop() = no such method
+template.getAdmin()                  = no such method

boot42-rc1-checklist/output/02-kafka-admin-binding.txt

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+# 02-kafka-admin-binding  (Spring Boot 4.2.0-RC1, JDK 25)
+properties supplied: 5
+bound    spring.kafka.listener.admin.client-id
+bound    spring.kafka.listener.admin.fail-fast
+bound    spring.kafka.listener.await-async-results-on-stop
+bound    spring.kafka.template.admin.client-id
+bound    spring.kafka.template.admin.fail-fast
+bound = 5 of 5
+listener.isAwaitAsyncResultsOnStop() = true
+template.getAdmin()                  = org.springframework.boot.kafka.autoconfigure.KafkaProperties$SimpleAdmin@889d9e8
+template admin client-id = template-admin
+template admin fail-fast = true
+listener admin client-id = listener-admin
+listener admin fail-fast = true

boot42-rc1-checklist/output/03-ldap-embedded-ssl-without-bundle-on-4.1.2.txt

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+# 03-ldap-embedded-ssl-without-bundle  (Spring Boot 4.1.2, JDK 25)
+spring.ldap.embedded.ssl.enabled=true, no bundle: context STARTED
+embedded server beans: 1

boot42-rc1-checklist/output/03-ldap-embedded-ssl-without-bundle.txt

@@ -0,0 +1,4 @@
+# 03-ldap-embedded-ssl-without-bundle  (Spring Boot 4.2.0-RC1, JDK 25)
+spring.ldap.embedded.ssl.enabled=true, no bundle: context FAILED to start
+java.lang.IllegalStateException
+SSL is enabled but no SSL bundle has been set. An SSL bundle providing the server's certificate and private key is required for LDAPS

boot42-rc1-checklist/output/04-properties-migrator-report-on-4.1.2.txt

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+# 04-properties-migrator-report  (Spring Boot 4.1.2, JDK 25)

boot42-rc1-checklist/output/04-properties-migrator-report.txt

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+# 04-properties-migrator-report  (Spring Boot 4.2.0-RC1, JDK 25)
+The use of configuration keys that have been renamed was found in the environment:
+Property source 'defaultProperties':
+Key: server.tomcat.additional-tld-skip-patterns
+Replacement: server.tomcat.servlet.additional-tld-skip-patterns
+Key: server.tomcat.redirect-context-root
+Replacement: server.tomcat.servlet.redirect-context-root
+Key: server.tomcat.use-relative-redirects
+Replacement: server.tomcat.servlet.use-relative-redirects
+The use of configuration keys that are no longer supported was found in the environment:
+Property source 'defaultProperties':
+Key: spring.mvc.pathmatch.matching-strategy
+Reason: Path matching is no longer configurable

boot42-rc1-checklist/output/05-resttemplate-compiler-warnings-on-4.1.2.txt

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+# 05-resttemplate-compiler-warnings  (Spring Boot 4.1.2, JDK 25.0.5)
+$ javac -Xlint:deprecation -cp <module classpath> -d target/broken src/broken/UsesRestTemplate.java
+exit: 0

boot42-rc1-checklist/output/05-resttemplate-compiler-warnings.txt

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+# 05-resttemplate-compiler-warnings  (Spring Boot 4.2.0-RC1, JDK 25.0.5)
+$ javac -Xlint:deprecation -cp <module classpath> -d target/broken src/broken/UsesRestTemplate.java
+src/broken/UsesRestTemplate.java:11: warning: [removal] RestTemplateBuilder in org.springframework.boot.restclient has been deprecated and marked for removal
+	public String fetch(RestTemplateBuilder builder) {
+	                    ^
+src/broken/UsesRestTemplate.java:12: warning: [removal] RestTemplate in org.springframework.web.client has been deprecated and marked for removal
+		RestTemplate rest = builder.build();
+		^
+2 warnings
+exit: 0