Jsr310 and jdk8 fasterxml modules are not available from deployment without specific jboss-deployment-structure.xml ------------------------------------------------------------------------------------------------------------------- Key: WFLY-7403 URL: https://issues.jboss.org/browse/WFLY-7403 Project: WildFly Issue Type: Bug Components: REST Reporter: Stuart Douglas Assignee: Stuart Douglas *Description of problem:* Jsr310 and jdk8 fasterxml modules are not available from deployment without specific jboss-deployment-structure.xml *How reproducible:* Always *Steps to Reproduce:* * This can be tested if "<module name="com.fasterxml.jackson.core.jackson-annotations"/>" is added to ./modules/system/layers/base/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/main/module.xml (see JBEAP-6673) # Create end-point with data types and special jdk8 types and allows {code:java} @GET @Path("entity/get/json") @Produces(MediaType.APPLICATION_JSON) public DatatypeObject getJson() { DatatypeObject per = new DatatypeObject(); per.setString("someString"); per.setDate(new Date()); per.setDuration(Duration.ofSeconds(5, 6)); per.setDayOfWeek(DayOfWeek.FRIDAY); per.setOptionalString1(Optional.of(&quot;info(a)example.com&quot;)); per.setOptionalString2(Optional.<String>empty()); return per; } {code} # Implement custom ContextResolver in deployment. This code enables jsr310 and jdk8 fasterxml functionality. Example: {code:java} @Provider @Produces( MediaType.APPLICATION_JSON ) public class JacksonProducer implements ContextResolver<ObjectMapper> { private final ObjectMapper json; public JacksonProducer() throws Exception { this.json = new ObjectMapper() .findAndRegisterModules() .configure( SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false ) .configure( DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false ); } @Override public ObjectMapper getContext( Class<?> objectType ) { return json; } } {code} # Http request to REST end-point *Actual results:* {noformat} {"string":"someString","optionalString1":{"present":true},"optionalString2":{"present":false},"duration":{"seconds":5,"zero":false,"negative":false,"units":["SECONDS","NANOS"],"nano":6},"date":"2016-10-27T13:02:11.991+0000"} {noformat} *Expected results:* {noformat}{"string":"someString","optionalString1":"info@example.com","optionalString2":null,"duration":"PT5.000000006S","date":"2016-10-27T13:01:03.923+0000"} {noformat} *Workaround:* Expected results is returned if specific jboss-deployment-structure.xml file is used: {code:xml} <?xml version="1.0" encoding="UTF-8"?> <jboss-deployment-structure> <deployment> <dependencies> <module name="com.fasterxml.jackson.datatype.jackson-datatype-jdk8" services="import"/> <module name="com.fasterxml.jackson.datatype.jackson-datatype-jsr310" services="import"/> </dependencies> </deployment> </jboss-deployment-structure> {code}