SocketException ao tentar post (https)

Olá,

Não estou conseguindo fazer um post de um serviço de portal de pagamento. O estranho é que utilizando o Poster no firefox eu consigo tranquilamente apenas enviando o Json e a URL obtenho sucesso, porém no Java tenho o SocketException toda vez. Lembrando que é https. Alguém já passou por isso ? Consegue dar uma luz ?

Método post no client:

public static HttpResponse sendPost(String json, String contentType) {
	URIBuilder builder = new URIBuilder();
	builder.setScheme("https").setHost("api.mundipagg.com").setPath("/checkout/v1/tokens");
	post.setEntity(new ByteArrayEntity(json.toString().getBytes("UTF8")));
	
	if (contentType != null) {
		post.setHeader("Content-type", contentType);
	} else {
		post.setHeader("Content-type", "application/json");
	}
	
	if (FacesContext.getCurrentInstance() != null) {
		HttpSession session = (HttpSession) FacesContext.getCurrentInstance().getExternalContext().getSession(true);
		Object token = session.getAttribute("TOKEN");
		
		if (token != null) {
			post.setHeader("Authorization", (String) token);
		}
	}
	
	return httpclient.execute(post);
}

Segue stacktrace:

09:07:10,440 ERROR [stderr] (default task-39) java.net.SocketException: Connection reset

09:07:10,441 ERROR [stderr] (default task-39) 	at java.net.SocketInputStream.read(SocketInputStream.java:196)

09:07:10,442 ERROR [stderr] (default task-39) 	at java.net.SocketInputStream.read(SocketInputStream.java:122)

09:07:10,443 ERROR [stderr] (default task-39) 	at sun.security.ssl.InputRecord.readFully(InputRecord.java:442)

09:07:10,444 ERROR [stderr] (default task-39) 	at sun.security.ssl.InputRecord.read(InputRecord.java:480)

09:07:10,446 ERROR [stderr] (default task-39) 	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:934)

09:07:10,447 ERROR [stderr] (default task-39) 	at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1332)

09:07:10,448 ERROR [stderr] (default task-39) 	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1359)

09:07:10,449 ERROR [stderr] (default task-39) 	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1343)

09:07:10,450 ERROR [stderr] (default task-39) 	at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)

09:07:10,451 ERROR [stderr] (default task-39) 	at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)

09:07:10,452 ERROR [stderr] (default task-39) 	at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141)

09:07:10,453 ERROR [stderr] (default task-39) 	at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)

09:07:10,454 ERROR [stderr] (default task-39) 	at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)

09:07:10,455 ERROR [stderr] (default task-39) 	at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)

09:07:10,456 ERROR [stderr] (default task-39) 	at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)

09:07:10,457 ERROR [stderr] (default task-39) 	at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)

09:07:10,458 ERROR [stderr] (default task-39) 	at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)

09:07:10,459 ERROR [stderr] (default task-39) 	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)

09:07:10,460 ERROR [stderr] (default task-39) 	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)

09:07:10,461 ERROR [stderr] (default task-39) 	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107)

09:07:10,462 ERROR [stderr] (default task-39) 	at br.com.pagamentoonline.utils.WebServiceUtils.sendPostMundipagg(WebServiceUtils.java:108)

09:07:10,463 ERROR [stderr] (default task-39) 	at br.com.pagamentoonline.utils.WebServiceUtils.sendPostMundi(WebServiceUtils.java:58)

09:07:10,464 ERROR [stderr] (default task-39) 	at br.com.caspagamentoonline.mb.CasInfoPedidoMB.realizarPagamento(CasInfoPedidoMB.java:94)

09:07:10,466 ERROR [stderr] (default task-39) 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

09:07:10,467 ERROR [stderr] (default task-39) 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

09:07:10,468 ERROR [stderr] (default task-39) 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

09:07:10,468 ERROR [stderr] (default task-39) 	at java.lang.reflect.Method.invoke(Method.java:606)

09:07:10,469 ERROR [stderr] (default task-39) 	at com.sun.el.parser.AstValue.invoke(AstValue.java:292)

09:07:10,470 ERROR [stderr] (default task-39) 	at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)

09:07:10,471 ERROR [stderr] (default task-39) 	at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)

09:07:10,472 ERROR [stderr] (default task-39) 	at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)

09:07:10,473 ERROR [stderr] (default task-39) 	at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)

09:07:10,474 ERROR [stderr] (default task-39) 	at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)

09:07:10,475 ERROR [stderr] (default task-39) 	at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:149)

09:07:10,476 ERROR [stderr] (default task-39) 	at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)

09:07:10,477 ERROR [stderr] (default task-39) 	at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:813)

09:07:10,478 ERROR [stderr] (default task-39) 	at javax.faces.component.UICommand.broadcast(UICommand.java:300)

09:07:10,479 ERROR [stderr] (default task-39) 	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)

09:07:10,480 ERROR [stderr] (default task-39) 	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)

09:07:10,481 ERROR [stderr] (default task-39) 	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)

09:07:10,482 ERROR [stderr] (default task-39) 	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)

09:07:10,482 ERROR [stderr] (default task-39) 	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)

09:07:10,483 ERROR [stderr] (default task-39) 	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)

09:07:10,484 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)

09:07:10,485 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61)

09:07:10,486 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)

09:07:10,487 ERROR [stderr] (default task-39) 	at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)

09:07:10,488 ERROR [stderr] (default task-39) 	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

09:07:10,489 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)

09:07:10,490 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56)

09:07:10,491 ERROR [stderr] (default task-39) 	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

09:07:10,492 ERROR [stderr] (default task-39) 	at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45)

09:07:10,493 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63)

09:07:10,494 ERROR [stderr] (default task-39) 	at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)

09:07:10,495 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70)

09:07:10,496 ERROR [stderr] (default task-39) 	at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)

09:07:10,497 ERROR [stderr] (default task-39) 	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

09:07:10,498 ERROR [stderr] (default task-39) 	at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)

09:07:10,500 ERROR [stderr] (default task-39) 	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

09:07:10,501 ERROR [stderr] (default task-39) 	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

09:07:10,502 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261)

09:07:10,503 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247)

09:07:10,503 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76)

09:07:10,504 ERROR [stderr] (default task-39) 	at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166)

09:07:10,505 ERROR [stderr] (default task-39) 	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197)

09:07:10,506 ERROR [stderr] (default task-39) 	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759)

09:07:10,507 ERROR [stderr] (default task-39) 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

09:07:10,508 ERROR [stderr] (default task-39) 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

09:07:10,509 ERROR [stderr] (default task-39) 	at java.lang.Thread.run(Thread.java:745)

Chamada no Poster pelo Firefox