I've been using Alpaquita buildpacks for my java 17 services with the following maven configuration:
<configuration>
<image>
<name>${project.name}:${project.version}</name>
<builder>bellsoft/buildpacks.builder:musl</builder>
<bindings>
<binding>
${project.basedir}/bindings/certificates:/platform/bindings/ca-certificates
</binding>
</bindings>
<env>
<BP_JVM_VERSION>17</BP_JVM_VERSION>
<BP_JVM_JLINK_ENABLED>true</BP_JVM_JLINK_ENABLED>
<BP_JVM_JLINK_ARGS>
--no-man-pages --no-header-files
--strip-debug --compress=2 --add-modules
java.base,java.management,java.logging,java.naming,java.desktop,jdk.unsupported</BP_JVM_JLINK_ARGS>
</env>
</image>
</configuration>
However, whenever I try to do the same after upgrading to Java 21, I get the following error:
[INFO] [creator] Warning: Dependency has no SHA256. Skipping cache.
[INFO] [creator] Downloading from
[INFO] [creator] unable to invoke layer creator
[INFO] [creator] unable to get dependency
[INFO] [creator] unable to download
[INFO] [creator] unable to request
[INFO] [creator] Get "": unsupported protocol scheme ""
[INFO] [creator] ERROR: failed to build: exit status 1
Execution default of goal org.springframework.boot:spring-boot-maven-plugin:3.2.1:build-image failed: Builder lifecycle 'creator' failed with status code 51
I am somewhat new to docker / containerization, i've read the Bellsoft Alpaquita documentation. My guess was that the Alpaquita flavor buildpack/JRE is not yet available for Java 21. Can someone please advise how to get this done for Java 21? Do I need to revert to using the default spring boot buildpack that uses the regular Bellsoft liberica JRE?