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fix: Build against the Jackson version of the latest Spring Boot release. #15

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Merged
goloroden merged 1 commit into from
Oct 8, 2026
Merged

fix: Build against the Jackson version of the latest Spring Boot release. #15

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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -12,7 +12,7 @@ For applications built with [Spring Boot](https://spring.io/projects/spring-boot

## Getting Started

The client SDK requires Java 21 or later. Add it to your build, e.g. with Gradle:
The client SDK requires Java 21 or later. It is built against the Jackson version that the latest release of Spring Boot uses, and requires that version of Jackson or a later one. Add it to your build, e.g. with Gradle:

```kotlin
dependencies {
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31 changes: 31 additions & 0 deletions buildSrc/src/main/kotlin/eventsourcingdb.java-conventions.gradle.kts
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Expand Up @@ -60,7 +60,26 @@ tasks.javadoc {
(options as StandardJavadocDocletOptions).addBooleanOption("Werror", true)
}

// Spring Boot decides which Jackson version Spring Boot applications use, so
// the modules build and test against the Jackson version of the Spring Boot
// release in the version catalog, instead of against one of their own. That
// way, the compiler can not pick anything a newer Jackson version adds. The
// release is pinned rather than looked up on every build, so that builds stay
// reproducible; Dependabot keeps it current. The versions of Spring Boot only
// apply where a module names no version, or a lower one, and they are not
// published.
val springBootVersions by configurations.creating {
isCanBeConsumed = false
isCanBeResolved = false
}

listOf("compileClasspath", "runtimeClasspath", "testCompileClasspath", "testRuntimeClasspath").forEach { name ->
configurations.named(name) { extendsFrom(springBootVersions) }
}

dependencies {
springBootVersions(platform(libs.findLibrary("spring-boot-dependencies").get()))

api(libs.findLibrary("jspecify").get())
errorprone(libs.findLibrary("errorprone-core").get())
errorprone(libs.findLibrary("nullaway").get())
Expand Down Expand Up @@ -113,6 +132,18 @@ spotless {
}
}

// Publishes the versions the modules were built and tested against, e.g. the
// Jackson version that Spring Boot gives them.
publishing {
publications.withType<MavenPublication>().configureEach {
versionMapping {
allVariants {
fromResolutionResult()
}
}
}
}

mavenPublishing {
publishToMavenCentral()

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4 changes: 2 additions & 2 deletions gradle/libs.versions.toml
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Expand Up @@ -2,7 +2,6 @@
assertj = "3.27.7"
errorprone = "2.50.0"
errorprone-gradle-plugin = "5.1.1"
jackson = "3.2.3"
jspecify = "1.0.1"
jacoco = "0.8.15"
junit = "6.1.3"
Expand All @@ -18,7 +17,7 @@ testcontainers = "2.0.5"
assertj-core = { module = "org.assertj:assertj-core", version.ref = "assertj" }
errorprone-core = { module = "com.google.errorprone:error_prone_core", version.ref = "errorprone" }
errorprone-gradle-plugin = { module = "net.ltgt.gradle:gradle-errorprone-plugin", version.ref = "errorprone-gradle-plugin" }
jackson-databind = { module = "tools.jackson.core:jackson-databind", version.ref = "jackson" }
jackson-databind = { module = "tools.jackson.core:jackson-databind" }
jspecify = { module = "org.jspecify:jspecify", version.ref = "jspecify" }
jacoco-agent = { module = "org.jacoco:org.jacoco.agent", version.ref = "jacoco" }
junit-bom = { module = "org.junit:junit-bom", version.ref = "junit" }
Expand All @@ -27,6 +26,7 @@ maven-publish-gradle-plugin = { module = "com.vanniktech:gradle-maven-publish-pl
palantir-java-format = { module = "com.palantir.javaformat:palantir-java-format", version.ref = "palantir-java-format" }
slf4j-nop = { module = "org.slf4j:slf4j-nop", version.ref = "slf4j" }
spotless-gradle-plugin = { module = "com.diffplug.spotless:spotless-plugin-gradle", version.ref = "spotless" }
spring-boot-dependencies = { module = "org.springframework.boot:spring-boot-dependencies", version.ref = "spring-boot" }
spring-boot-configuration-processor = { module = "org.springframework.boot:spring-boot-configuration-processor", version.ref = "spring-boot" }
spring-boot-jackson = { module = "org.springframework.boot:spring-boot-jackson", version.ref = "spring-boot" }
spring-boot-starter = { module = "org.springframework.boot:spring-boot-starter", version.ref = "spring-boot" }
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