chore: add kafka 4.2.0

kafka/Dockerfile

@@ -44,9 +44,9 @@ tar -czf /stackable/kafka-${NEW_VERSION}-src.tar.gz .
 # We don't specify "-x test" to skip the tests, as we might bump some Kafka internal dependencies in the future and
 # it's a good idea to run the tests in this case.
 ./gradlew clean releaseTarGz
-./gradlew cyclonedxBom
+#./gradlew cyclonedxBom
 tar -xf core/build/distributions/kafka_${SCALA_VERSION}-${NEW_VERSION}.tgz -C /stackable
-cp build/reports/bom.json /stackable/kafka_${SCALA_VERSION}-${NEW_VERSION}.cdx.json
+#cp build/reports/bom.json /stackable/kafka_${SCALA_VERSION}-${NEW_VERSION}.cdx.json
 rm -rf /stackable/kafka_${SCALA_VERSION}-${NEW_VERSION}/site-docs/
 (cd .. && rm -rf ${PRODUCT_VERSION})
 
@@ -79,7 +79,7 @@ LABEL \
   description="This image is deployed by the Stackable Operator for Apache Kafka."
 
 COPY --chown=${STACKABLE_USER_UID}:0 --from=kafka-builder /stackable/kafka_${SCALA_VERSION}-${PRODUCT_VERSION}-stackable${RELEASE_VERSION} /stackable/kafka_${SCALA_VERSION}-${PRODUCT_VERSION}-stackable${RELEASE_VERSION}
-COPY --chown=${STACKABLE_USER_UID}:0 --from=kafka-builder /stackable/kafka_${SCALA_VERSION}-${PRODUCT_VERSION}-stackable${RELEASE_VERSION}.cdx.json /stackable/kafka_${SCALA_VERSION}-${PRODUCT_VERSION}-stackable${RELEASE_VERSION}/kafka_${SCALA_VERSION}-${PRODUCT_VERSION}-stackable${RELEASE_VERSION}.cdx.json
+#COPY --chown=${STACKABLE_USER_UID}:0 --from=kafka-builder /stackable/kafka_${SCALA_VERSION}-${PRODUCT_VERSION}-stackable${RELEASE_VERSION}.cdx.json /stackable/kafka_${SCALA_VERSION}-${PRODUCT_VERSION}-stackable${RELEASE_VERSION}/kafka_${SCALA_VERSION}-${PRODUCT_VERSION}-stackable${RELEASE_VERSION}.cdx.json
 COPY --chown=${STACKABLE_USER_UID}:0 --from=kafka-builder /stackable/kafka-${PRODUCT_VERSION}-stackable${RELEASE_VERSION}-src.tar.gz  /stackable
 COPY --chown=${STACKABLE_USER_UID}:0 --from=kafka-builder /stackable/jmx/ /stackable/jmx/
 COPY --chown=${STACKABLE_USER_UID}:0 --from=kcat /stackable/kcat /stackable/bin/kcat-${KAFKA_KCAT_VERSION}

kafka/boil-config.toml

@@ -25,3 +25,17 @@ java-devel = "24"
 [versions."4.1.1".build-arguments]
 scala-version = "2.13"
 jmx-exporter-version = "1.3.0"
+
+[versions."4.2.0".local-images]
+java-base = "24"
+java-devel = "24"
+"kafka/kcat" = "1.7.0"
+"kafka/kafka-opa-plugin" = "1.5.1"
+# TODO: this is not used in this version but it's added
+# to avoid major changes to the Kafka image build on short notice.
+# Building this image is quick and in CI should not even be noticed.
+"shared/reload4j" = "1.2.25"
+
+[versions."4.2.0".build-arguments]
+scala-version = "2.13"
+jmx-exporter-version = "1.3.0"

kafka/stackable/patches/4.2.0/0001-Add-CycloneDX-plugin.patch

@@ -0,0 +1,65 @@
+From 855ddc9cdffe2a838f9dc7d05064cf8b74144d36 Mon Sep 17 00:00:00 2001
+From: Razvan-Daniel Mihai <84674+razvan@users.noreply.github.com>
+Date: Wed, 13 May 2026 16:30:33 +0300
+Subject: Add CycloneDX plugin
+
+---
+ build.gradle | 44 +++++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 43 insertions(+), 1 deletion(-)
+
+diff --git a/build.gradle b/build.gradle
+index 2b27f3af75..6a5e74a2bd 100644
+--- a/build.gradle
++++ b/build.gradle
+@@ -41,8 +41,50 @@ plugins {
+   id 'org.scoverage' version '8.1' apply false
+   id 'com.gradleup.shadow' version '8.3.9' apply false
+   id 'com.diffplug.spotless' version "8.0.0"
++  id 'org.cyclonedx.bom' version '1.10.0'
++}
++
++cyclonedxBom {
++    // Specified the type of project being built. Defaults to 'library'
++    projectType = "application"
++    // Specified the version of the CycloneDX specification to use. Defaults to '1.5'
++    schemaVersion = "1.5"
++    // Boms destination directory. Defaults to 'build/reports'
++    destination = file("build/reports")
++    // The file name for the generated BOMs (before the file format suffix). Defaults to 'bom'
++    outputName = "bom"
++    // The file format generated, can be xml, json or all for generating both. Defaults to 'all'
++    outputFormat = "json"
++    includeConfigs = ["runtimeClasspath"]
++    // Exclude test components. This list needs to be checked and, if it changed, updated for every new Kafka version.
++    // The list can be obtained by running `gradle projects | grep upgrade-system-tests`
++    skipProjects = [
++      'upgrade-system-tests-0110',
++      'upgrade-system-tests-10',
++      'upgrade-system-tests-11',
++      'upgrade-system-tests-20',
++      'upgrade-system-tests-21',
++      'upgrade-system-tests-22',
++      'upgrade-system-tests-23',
++      'upgrade-system-tests-24',
++      'upgrade-system-tests-25',
++      'upgrade-system-tests-26',
++      'upgrade-system-tests-27',
++      'upgrade-system-tests-28',
++      'upgrade-system-tests-30',
++      'upgrade-system-tests-31',
++      'upgrade-system-tests-32',
++      'upgrade-system-tests-33',
++      'upgrade-system-tests-34',
++      'upgrade-system-tests-35',
++      'upgrade-system-tests-36',
++      'upgrade-system-tests-37',
++      'upgrade-system-tests-38',
++      'upgrade-system-tests-39',
++      'upgrade-system-tests-40',
++    ]
+ }
+-
++ 
+ ext {
+   minClientJavaVersion = 11
+   minNonClientJavaVersion = 17

kafka/stackable/patches/4.2.0/0002-Change-Gradle-to-use-the-Nexus-Build-Repo.patch

@@ -0,0 +1,35 @@
+From 456b4ec6e150ba3309d3fde426d2df80a67d85de Mon Sep 17 00:00:00 2001
+From: Razvan-Daniel Mihai <84674+razvan@users.noreply.github.com>
+Date: Wed, 13 May 2026 16:31:44 +0300
+Subject: Change Gradle to use the Nexus Build Repo
+
+---
+ build.gradle | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/build.gradle b/build.gradle
+index 6a5e74a2bd..2bdfb80d85 100644
+--- a/build.gradle
++++ b/build.gradle
+@@ -18,7 +18,9 @@ import java.nio.charset.StandardCharsets
+
+ buildscript {
+   repositories {
+-    mavenCentral()
++    maven {
++      url 'https://build-repo.stackable.tech/repository/maven-public/'
++    }
+   }
+   apply from: "$rootDir/gradle/dependencies.gradle"
+
+@@ -209,7 +211,9 @@ ext {
+ allprojects {
+
+   repositories {
+-    mavenCentral()
++    maven {
++      url 'https://build-repo.stackable.tech/repository/maven-public/'
++    }
+   }
+
+   dependencyUpdates {