ejb3/src/main/java/org/jboss/as/ejb3/component/EJBComponentDescription.java
protected void addRemoteTransactionsDependency() {
        this.getConfigurators().add(new ComponentConfigurator() {
            @Override
            public void configure(DeploymentPhaseContext context, ComponentDescription description, ComponentConfiguration componentConfiguration) throws DeploymentUnitProcessingException {
                if (this.hasRemoteView((EJBComponentDescription) description)) {
                    // add a dependency on local transaction service
                    componentConfiguration.getCreateDependencies().add((sb, cs) -> sb.requires(TxnServices.JBOSS_TXN_REMOTE_TRANSACTION_SERVICE));
                }
            }

            /**
             * Returns true if the passed EJB component description has at least one remote view
             * @param ejbComponentDescription
             * @return
             */
            private boolean hasRemoteView(final EJBComponentDescription ejbComponentDescription) {
                final Set<ViewDescription> views = ejbComponentDescription.getViews();
                for (final ViewDescription view : views) {
                    if (!(view instanceof EJBViewDescription)) {
                        continue;
                    }
                    final MethodIntf viewType = ((EJBViewDescription) view).getMethodIntf();
                    if (viewType == MethodIntf.REMOTE || viewType == MethodIntf.HOME) {
                        return true;
                    }
                }
                return false;
            }
        });
    }
protected void addRemoteTransactionsDependency() {
        this.getConfigurators().add(new ComponentConfigurator() {
            @Override
            public void configure(DeploymentPhaseContext context, ComponentDescription description, ComponentConfiguration componentConfiguration) throws DeploymentUnitProcessingException {
                if (this.hasRemoteView((EJBComponentDescription) description)) {
                    // add a dependency on local transaction service
                    componentConfiguration.getCreateDependencies().add((sb, cs) -> sb.requires(TxnServices.JBOSS_TXN_REMOTE_TRANSACTION_SERVICE));
                }
            }

            /**
             * Returns true if the passed EJB component description has at least one remote view
             * @param ejbComponentDescription
             * @return
             */
            private boolean hasRemoteView(final EJBComponentDescription ejbComponentDescription) {
                final Set<ViewDescription> views = ejbComponentDescription.getViews();
                for (final ViewDescription view : views) {
                    if (!(view instanceof EJBViewDescription)) {
                        continue;
                    }
                    final MethodIntf viewType = ((EJBViewDescription) view).getMethodIntf();
                    if (viewType == MethodIntf.REMOTE || viewType == MethodIntf.HOME) {
                        return true;
                    }
                }
                return false;
            }
        });
    }
Adds a dependency for the ComponentConfiguration on the remote transaction service if the EJB exposes at least one remote view