[ARCHETYPE-634] WARNING: An illegal reflective access operation has occurred

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.1
• Fix Version/s: 3.3.0
• Component/s: Plugin
• Environment: MacOS / JDK11
• Assignee: Sylwester Lachiewicz
• Reporter: Christophe Marchand
• Created: 12/Dec/22 08:04
• Updated: 14/Sep/24 08:31
• Resolved: 14/Sep/24 08:31

Description

Having an archetype with a archetype-post-generate.groovy file inside, when generating a new project with JDK11, I get a WARNING :

[*INFO*] Executing META-INF/archetype-post-generate.groovy post-generation script

WARNING: An illegal reflective access operation has occurred

WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass (file:.../.m2/repository/org/codehaus/groovy/groovy-all/2.4.16/groovy-all-2.4.16.jar) to method java.lang.Object.finalize()

WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass

WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operationsWARNING: All illegal access operations will be denied in a future release

Components :
08:50 $ mvn -version
Apache Maven 3.8.4 (9b656c72d54e5bacbed989b64718c159fe39b537)
Maven home: /Users/cmarchand/applications/apache-maven-3.8.4
Java version: 11.0.4, vendor: AdoptOpenJDK, runtime:/Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home
Default locale: fr_FR, platform encoding: UTF-8
OS name: "mac os x", version: "10.16", arch: "x86_64", family: "mac"
08:51 $ java -version
openjdk version "11.0.4" 2019-07-16
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.4+11)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.4+11, mixed mode)

 

Problem comes probably from groovy-all dependency, which is quite old (2.4.16), and should be upgraded to a more recent one (4.0.6 is available)

Issue Links

• is related to: ARCHETYPE-658 Upgrade Groovy to 4.0.23