RestTemplate + ConnectionPoolTimeoutException: Timeout waiting for connection aus dem pool

Bekam ich diese Fehlermeldung plötzlich in der Produktion, während die Anwendung nicht unter jeder Belastung.

Das Problem passiert, wenn mein code zu senden versucht die SETZEN-Nachricht mit spring rest-Vorlage

Hier ist der code, wie ich bin paraphiernung der restTemplate

private static final RestTemplate restTemplate = new RestTemplate(new HttpComponentsClientHttpRequestFactory());
{

    List<HttpMessageConverter<?>> messageConverters = new ArrayList<HttpMessageConverter<?>>();
    Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
    marshaller.setClassesToBeBound(PaymentSession.class);
    MarshallingHttpMessageConverter marshallingHttpMessageConverter = new MarshallingHttpMessageConverter(marshaller, marshaller);
    marshallingHttpMessageConverter.setSupportedMediaTypes(Arrays.asList(MediaType.APPLICATION_XML, MediaType.TEXT_HTML));
    messageConverters.add(marshallingHttpMessageConverter);
    restTemplate.setMessageConverters(messageConverters);
}

Call PUT

try {
    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_XML);
    HttpEntity<PaymentSession> httpEntity = new HttpEntity<PaymentSession>(session, headers);

    restTemplate.exchange(baseUrl+"/v1/psps", HttpMethod.PUT, httpEntity, PaymentSession.class);

}catch(HttpClientErrorException e){
        logger.error("Exception..!!",e)
}

Exception stacktrace

Caused by: org.apache.http.conn.ConnectionPoolTimeoutException: Timeout waiting for connection from pool
at org.apache.http.impl.conn.PoolingClientConnectionManager.leaseConnection(PoolingClientConnectionManager.java:232)
at org.apache.http.impl.conn.PoolingClientConnectionManager$1.getConnection(PoolingClientConnectionManager.java:199)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:456)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at org.springframework.http.client.HttpComponentsClientHttpRequest.executeInternal(HttpComponentsClientHttpRequest.java:88)
at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:46)
at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:49)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:509)

InformationsquelleAutor NullPointerException | 2015-07-23

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