apm-agent-plugins/apm-servlet-plugin/src/main/java/co/elastic/apm/agent/servlet/helper/JakartaAsyncContextAdviceHelper.java [59:81]:
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    ServletTransactionHelper getServletTransactionHelper() {
        return servletTransactionHelper;
    }

    @Override
    public void onExitStartAsync(AsyncContext asyncContext) {
        final ServletRequest request = asyncContext.getRequest();
        if (request.getAttribute(ASYNC_LISTENER_ADDED) != null) {
            return;
        }
        final Transaction<?> transaction = tracer.currentTransaction();
        if (transaction != null && transaction.isSampled() && request.getAttribute(ASYNC_LISTENER_ADDED) == null) {
            // makes sure that the listener is only added once, even if the request is wrapped
            // which leads to multiple invocations of startAsync for the same underlying request
            request.setAttribute(ASYNC_LISTENER_ADDED, Boolean.TRUE);
            // specifying the request and response is important
            // otherwise AsyncEvent.getSuppliedRequest returns null per spec
            // however, only some application server like WebSphere actually implement it that way
            asyncContext.addListener(asyncListenerObjectPool.createInstance().withTransaction(transaction),
                asyncContext.getRequest(), asyncContext.getResponse());

            request.setAttribute(ASYNC_ATTRIBUTE, Boolean.TRUE);
            request.setAttribute(TRANSACTION_ATTRIBUTE, transaction);
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apm-agent-plugins/apm-servlet-plugin/src/main/java/co/elastic/apm/agent/servlet/helper/JavaxAsyncContextAdviceHelper.java [59:81]:
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    ServletTransactionHelper getServletTransactionHelper() {
        return servletTransactionHelper;
    }

    @Override
    public void onExitStartAsync(AsyncContext asyncContext) {
        final ServletRequest request = asyncContext.getRequest();
        if (request.getAttribute(ASYNC_LISTENER_ADDED) != null) {
            return;
        }
        final Transaction<?> transaction = tracer.currentTransaction();
        if (transaction != null && transaction.isSampled() && request.getAttribute(ASYNC_LISTENER_ADDED) == null) {
            // makes sure that the listener is only added once, even if the request is wrapped
            // which leads to multiple invocations of startAsync for the same underlying request
            request.setAttribute(ASYNC_LISTENER_ADDED, Boolean.TRUE);
            // specifying the request and response is important
            // otherwise AsyncEvent.getSuppliedRequest returns null per spec
            // however, only some application server like WebSphere actually implement it that way
            asyncContext.addListener(asyncListenerObjectPool.createInstance().withTransaction(transaction),
                asyncContext.getRequest(), asyncContext.getResponse());

            request.setAttribute(ASYNC_ATTRIBUTE, Boolean.TRUE);
            request.setAttribute(TRANSACTION_ATTRIBUTE, transaction);
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