spring-boot > 2.3.1 will grab groovy-bom from codehaus instead of org.apache.groovy packaging, even if you declare org.apache.groovy dependendices
I found this means spring-boot > 2.3.1 will not build groovy 4.0
even spring initializr bakes this in... because when you go springboot 2.6.7, initializr is using groovy packaging from org.codehaus. so that limits 2.6.7 to use groovy 3.0.10, as that's the cutoff for groovy to show up in org.apache packaging. and groovy 4.x uses apache packages.
here's the gradle initializr created from this URL
plugins {
id 'org.springframework.boot' version '2.6.7'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'groovy'
}
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.springframework.boot:spring-boot-starter-data-rest'
implementation 'org.codehaus.groovy:groovy'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
tasks.named('test') {
useJUnitPlatform()
}