I am trying to add RestEasy to an existing application that already has SOAP/XML via CXF. It is a Spring app that uses JSPs but it also has JSF 2.3 and Weld. It runs on Tomcat. I have added the following jars to the project: microprofile-config-2018.5.0.jar microprofile-config-api-2.0.jar resteasy-cache-core-4.5.8.Final.jar resteasy-client-4.5.8.Final.jar resteasy-client-api-4.5.8.Final.jar resteasy-client-microprofile-4.5.8.Final.jar resteasy-context-propagation-4.5.8.Final.jar resteasy-core-4.5.8.Final.jar resteasy-core-spi-4.5.8.Final.jar resteasy-jaxb-provider-4.5.8.Final.jar resteasy-jaxrs-services-3.1.4.Final.jar resteasy-jsapi-4.5.8.Final.jar resteasy-json-binding-provider-4.5.8.Final.jar resteasy-json-p-provider-4.5.8.Final.jar resteasy-multipart-provider-4.5.8.Final.jar resteasy-servlet-initializer-4.5.8.Final.jar resteasy-spring-4.5.8.Final.jar resteasy-validator-provider-4.5.8.Final.jar resteasy-wadl-4.5.8.Final.jar smallrye-common-classloader-1.5.0.jar smallrye-common-constraint-1.5.0.jar smallrye-common-function-1.1.0.jar smallrye-config-2.0.0.jar smallrye-config-common-2.0.0.jar smallrye-config-core-2.0.0.jar ws-atlassian-jira-8.2.3.jar During WAR deployment, I get the following exception: Caused by: org.jboss.weld.exceptions.DeploymentException at org.jboss.weld.bootstrap.events.AbstractDeploymentContainerEvent.fire(AbstractDeploymentContainerEvent.java:38) at org.jboss.weld.bootstrap.events.AfterDeploymentValidationImpl.fire(AfterDeploymentValidationImpl.java:28) at org.jboss.weld.bootstrap.WeldStartup.validateBeans(WeldStartup.java:505) at org.jboss.weld.bootstrap.WeldBootstrap.validateBeans(WeldBootstrap.java:93) at org.jboss.weld.environment.servlet.WeldServletLifecycle.initialize(WeldServletLifecycle.java:237) at org.jboss.weld.environment.servlet.EnhancedListener.onStartup(EnhancedListener.java:62) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5098) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ... 19 more Caused by: javax.enterprise.event.ObserverException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ... Caused by: java.lang.AbstractMethodError: Method org/jboss/resteasy/microprofile/config/ServletContextConfigSource.getPropertyNames()Ljava/util/Set; is abstract at org.jboss.resteasy.microprofile.config.ServletContextConfigSource.getPropertyNames(ServletContextConfigSource.java) I've looked around and cannot figure out what jar I need that has an implementation for that method. Help? _______________________________________________ resteasy mailing list -- resteasy(a)lists.jboss.org To unsubscribe send an email to resteasy-leave(a)lists.jboss.org