Hi
spring-boot-maven-plugin ignores ZIP layout when building docker images , and always creates an image with JarLauncher While the same project when creating fatjar creates it with
Removing the ability to add external classpath with library.path when application running in a container
======= In Jar
cat META-INF/MANIFEST.MF
Manifest-Version: 1.0
Spring-Boot-Classpath-Index: BOOT-INF/classpath.idx
Implementation-Title: testclasspth
Implementation-Version: 0.0.1-SNAPSHOT
Spring-Boot-Layers-Index: BOOT-INF/layers.idx
Start-Class: com.example.testclasspth.TestclasspthApplication
Spring-Boot-Classes: BOOT-INF/classes/
Spring-Boot-Lib: BOOT-INF/lib/
Build-Jdk-Spec: 1.8
Spring-Boot-Version: 2.4.5
Created-By: Maven Jar Plugin 3.2.0
Main-Class: org.springframework.boot.loader.PropertiesLauncher
===== In a Docker container
cnb@5a834f2565fb:/$ cat /workspace/META-INF/
MANIFEST.MF build-info.properties maven/
cnb@5a834f2565fb:/$ cat /workspace/META-INF/MANIFEST.MF
Manifest-Version: 1.0
Spring-Boot-Classpath-Index: BOOT-INF/classpath.idx
Implementation-Title: testclasspth
Implementation-Version: 0.0.1-SNAPSHOT
Spring-Boot-Layers-Index: BOOT-INF/layers.idx
Start-Class: com.example.testclasspth.TestclasspthApplication
Spring-Boot-Classes: BOOT-INF/classes/
Spring-Boot-Lib: BOOT-INF/lib/
Build-Jdk-Spec: 1.8
Spring-Boot-Version: 2.4.5
Created-By: Maven Jar Plugin 3.2.0
Main-Class: org.springframework.boot.loader.JarLauncher
====
Pom
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<layout>ZIP</layout>
</configuration>
<executions>
<execution>
<goals>
<goal>build-info</goal>
<goal>build-image</goal>
</goals>
</execution>
</executions>
</plugin>