Testcontainers 2.0 NoSuchFieldError: fix old jackson-annotations
Testcontainers 2.0 fails with NoSuchFieldError READ_UNKNOWN_ENUM_VALUES_USING_DEFAULT_VALUE when old jackson-annotations is on the classpath. Fix it.
Liquibase Gradle plugin 3.x: NoClassDefFoundError liquibase/Scope fix
Upgrading the Liquibase Gradle plugin from 2.2.2 to 3.x fails the build with liquibase/Scope. Reproduced on Gradle 8.14.6 and 9.8.2, with the buildscript fix.
Spring AI 2.0 on Spring Boot 4.0: requireUpperBoundDeps error fix
A Spring AI 2.0.2 starter on Spring Boot 4.0.9 fails only the Maven Enforcer requireUpperBoundDeps rule. The cause, plus the 4.1.2 upgrade and excludes fixes.
Testcontainers on Docker 29: fix client version 1.32 is too old
After upgrading to Docker 29, Testcontainers fails with “client version 1.32 is too old”. Reproduced on Docker 29.0.0 and fixed with 2.0.2+ or 1.21.4+.
bitnami/kafka manifest unknown: moving to apache/kafka KRaft
An old bitnami/kafka Compose file now fails with manifest unknown. Here is why, and how to switch to apache/kafka:4.4.0 without the process.roles error.
Fix Spring AI 2.0 conversationId cannot be null in chat memory
Spring AI 2.0 and 1.1.6 removed DEFAULT_CONVERSATION_ID, so chat memory calls fail with conversationId cannot be null. Reproduced and fixed with per-user IDs.
Spring Boot 4: Jackson 2 Module ignored with spring-boot-jackson2
On Spring Boot 4, a Jackson 2 serializer stays silent even with spring-boot-jackson2. Why Jackson 3 wins, the preferred-json-mapper fix, and a test trap.
Spring AI 2.0: ChatModel tool calls not executed, empty answer
After upgrading to Spring AI 2.0, @Tool methods passed to ChatModel.call() never run and the answer is empty. Reproduced on 2.0.2, with two fixes.
Flyway 13.10 Native Connectors: baseline migration shows Pending
In Flyway 13.10.0 Native Connectors mode, a new B3 baseline on a migrated database shows as Pending and migrate runs it. Cause and the 13.11.1 fix.
Spring Boot 4: fixing Cannot map null into type int (Jackson 3)
On Spring Boot 4, a RequestBody DTO missing an int field fails with Cannot map null into type int. Why Jackson 3 does it, and five fixes compared.