org.apache.httpcomponents.core requires org.apache.commons.codec ---------------------------------------------------------------- Key: WFCORE-4083 URL: https://issues.jboss.org/browse/WFCORE-4083 Project: WildFly Core Issue Type: Bug Reporter: Sanne Grinovero Fix For: 6.0.1.Final In WildFly 14 we get: {code:java} Exception in thread "Hibernate Search: Elasticsearch transport thread-2" java.lang.NoClassDefFoundError: org/apache/commons/codec/binary/Base64 2018-09-03 11:58:13,120 ERROR [stderr] (Hibernate Search: Elasticsearch transport thread-2) at org.apache.http.impl.auth.BasicScheme.authenticate(BasicScheme.java:168) 2018-09-03 11:58:13,120 ERROR [stderr] (Hibernate Search: Elasticsearch transport thread-2) at org.apache.http.impl.auth.HttpAuthenticator.doAuth(HttpAuthenticator.java:239) 2018-09-03 11:58:13,120 ERROR [stderr] (Hibernate Search: Elasticsearch transport thread-2) at org.apache.http.impl.auth.HttpAuthenticator.generateAuthResponse(HttpAuthenticator.java:218) 2018-09-03 11:58:13,120 ERROR [stderr] (Hibernate Search: Elasticsearch transport thread-2) at org.apache.http.impl.nio.client.MainClientExec.generateRequest(MainClientExec.java:224) {code} Seems that the *org.apache.httpcomponents.core* (WildFly core) module is not declaring the dependency on module *org.apache.commons.codec* (WildFly full). Should this be added as an optional dependency, or maybe the need for this module warrants moving the *org.apache.commons.codec* module to WildFly core ?