public final HttpAsyncClientBuilder addExecInterceptorAfter(final String existing, final String name, final AsyncExecChainHandler interceptor) {
        Args.notBlank(existing, "Existing");
        Args.notBlank(name, "Name");
        Args.notNull(interceptor, "Interceptor");
        if (execInterceptors == null) {
            execInterceptors = new LinkedList<>();
        }
        execInterceptors.add(new ExecInterceptorEntry(ExecInterceptorEntry.Position.AFTER, name, interceptor, existing));
        return this;
    }
Adds this execution interceptor after interceptor with the given name.

@return this instance.
httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/HttpAsyncClientBuilder.java