Default value defined on injection point of List and Set fields is not taken into account ----------------------------------------------------------------------------------------- Key: WFWIP-55 URL: https://issues.jboss.org/browse/WFWIP-55 Project: WildFly WIP Issue Type: Bug Components: MP Config Environment: {noformat} git@github.com:jmesnil/wildfly.git:WFLY-10522_microprofile-config-smallrye_extension {noformat} Reporter: Petr Kremensky Assignee: Jeff Mesnil Assume we define a following injection points: {code:java} @Inject @ConfigProperty(name = "myPets", defaultValue = "horse,monkey") private String[] myArrayPets; @Inject @ConfigProperty(name = "myPets", defaultValue = "cat,lama") private List<String> myListPets; @Inject @ConfigProperty(name = "myPets", defaultValue = "dog,mouse") private Set<String> mySetPets; {code} Passing a -DmyPets=snake,ox property work as expected: {noformat} myArrayPets : [snake,ox] myListPets : [snake,ox] mySetPets : [snake,ox] {noformat} but trying to use the defults I get: {noformat} myArrayPets : [horse,monkey] myListPets : <empty list> mySetPets : <empty set> {noformat} defaults are not applied to List and Set fields, no exception is thrown. Another inconsistency between Array and Set+List I run into is behaviour on missing property (myPets is not set): *Array* {code:java} @Inject @ConfigProperty(name = "myPets") private String[] myArrayPets; >>> 08:34:05,178 ERROR [stderr] (MSC service thread 1-2) org.jboss.weld.exceptions.DeploymentException: Error while validating Configuration 08:34:05,178 ERROR [stderr] (MSC service thread 1-2) No Config Value exists for myPets myArrayPets : [org.eclipse.microprofile.config.configproperty.unconfigureddvalue] {code} *Set, List* {code:java} @Inject @ConfigProperty(name = "myPets") private List<String> myListPets; @Inject @ConfigProperty(name = "myPets") private Set<String> mySetPets; >>> no errors myListPets : <empty list> mySetPets : <empty set> {code} https://microprofile.io/project/eclipse/microprofile-config/spec/src/main...