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Unable to connect to RMI server when running Client from Servlet [duplicate]

This question already has answers here:
What is a NullPointerException, and how do I fix it?
(12 answers)
Closed 1 year ago.
Have a Java servlet running using a Tomcat server. So when the servlet starts, I would like the client to connect to a RMI registry (Port 33996). The client is initialized during the init() of the servlet. However, for some reason, it is unable to connect to the server
Server code
#Override
public void startRMIRegistry(CentralServer server){
try {
AsyncLogger.log("Setting up RMI Registry.....");
Registry registry = LocateRegistry.createRegistry(
Integer.parseInt(ServerConfigUtils.getProperty(ServerConfigUtils.PORT)));
registry.rebind(ServerConfigUtils.getProperty(ServerConfigUtils.NAME), server);
} catch (RemoteException e) {
e.printStackTrace();
}
}
Client code
private ICentralServer getServerConnection() {
String serverHost = ServerConfigUtils.getProperty(ServerConfigUtils.HOST);
Integer serverPort = Integer.valueOf(ServerConfigUtils.getProperty(ServerConfigUtils.PORT));
String serverName = ServerConfigUtils.getProperty(ServerConfigUtils.NAME);
Integer failureCount = 0;
while (failureCount < SERVER_ACTION_ATTEMPTS) {
try {
return (ICentralServer)
LocateRegistry.getRegistry(serverHost, serverPort).lookup(serverName);
} catch (Exception e) {
failureCount++;
continue;
}
}
AsyncLogger.log("Failed to connect to central server, giving up");
throw new RuntimeException();
}
Servlet
#Override
public void init() throws ServletException {
try {
client = new LabClient();
} catch (Exception e) {
e.printStackTrace();
}
super.init();
}
Error
INFO: Starting ProtocolHandler ["http-nio-8080"]
sg.gov.moh.exceptions.CannotReachServerException: java.lang.NullPointerException
at sg.gov.moh.client.LabClient.<init>(LabClient.java:366)
at launcher.servlet.MainServlet.init(MainServlet.java:36)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1152)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1097)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:768)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:133)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:544)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:364)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:624)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:831)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1651)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at sg.gov.moh.centralServer.CentralServer.pingOrPrune(CentralServer.java:318)
at sg.gov.moh.centralServer.CentralServer.registerLaboratory(CentralServer.java:297)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:303)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:279)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:163)
at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:235)
at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:180)
at com.sun.proxy.$Proxy5.registerLaboratory(Unknown Source)
at sg.gov.moh.client.LabClient.registerCallback(LabClient.java:69)
at sg.gov.moh.client.LabClient.<init>(LabClient.java:364)
... 21 more
Had my peers tried this code, they were all able to connect successfully.
Have tried toggling off firewall, setting inbound rules to the port but to no avail

Found the solution, I ran mvn clean package at the parent maven directory, previously I was rebuilding the sub-modules invidually at sub-module level, which corrupted the bytecode.
|- Parent
| |--Sub-module a
| |--Sub-module b
|
|

Unable to generate AAD Token using java

I have to embed power BI report using service principle in my java application. so i am trying to generate AAD access token. But I fail to generate access token. Below is the code and output. I have tried to generate aad access token using Javascript also but could not do so. Please help.
Find my code here
import java.net.MalformedURLException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import com.microsoft.aad.adal4j.AuthenticationCallback;
import com.microsoft.aad.adal4j.AuthenticationContext;
import com.microsoft.aad.adal4j.AuthenticationResult;
import com.microsoft.aad.adal4j.ClientCredential;
public class GenerateToken {
public static void main(String[] args) throws InterruptedException, ExecutionException {
System.out.println("Connecting to Azure......");
System.out.println("AAD Token" + ServicePrinciple.getAADAccessTokenFromAzure().get().getAccessToken());
}
}
final class ServicePrinciple {
static String authority = "https://login.microsoftonline.com/tenant_id/oauth2/token";
static String clientId = "";
static String clientSecret = "";
static String resource = "https://analysis.windows.net/powerbi/api";
private static Future<AuthenticationResult> getAADAccessToken(String authority, String resource, String clientId, String clientSecret) {
AuthenticationCallback callback = null;
ClientCredential clientCredential = null;
ExecutorService executorService = Executors.newFixedThreadPool(1);
clientCredential = new ClientCredential(clientId, clientSecret);
AuthenticationContext context = null;
try {
context = new AuthenticationContext(authority, false, executorService);
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Future<AuthenticationResult> authenticationResult = context.acquireToken(resource, clientCredential, callback);
return authenticationResult;
}
static Future<AuthenticationResult> getAADAccessTokenFromAzure() {
return getAADAccessToken(authority, resource, clientId, clientSecret);
}
}
Output of my code
Connecting to Azure......
[pool-1-thread-1] INFO com.microsoft.aad.adal4j.AuthenticationAuthority - [Correlation ID: 9f8f9bde-fc94-4cb9-bf91-1a3ef2e79d10] Instance discovery was successful
[pool-1-thread-1] ERROR com.microsoft.aad.adal4j.AuthenticationContext - [Correlation ID: 9f8f9bde-fc94-4cb9-bf91-1a3ef2e79d10] Request to acquire token failed.
java.net.UnknownHostException: login.microsoftonline.com
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:673)
at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:259)
at com.microsoft.aad.adal4j.AdalOAuthRequest.configureHeaderAndExecuteOAuthCall(AdalOAuthRequest.java:117)
at com.microsoft.aad.adal4j.AdalOAuthRequest.send(AdalOAuthRequest.java:72)
at com.microsoft.aad.adal4j.AdalTokenRequest.executeOAuthRequestAndProcessResponse(AdalTokenRequest.java:72)
at com.microsoft.aad.adal4j.AuthenticationContext.acquireTokenCommon(AuthenticationContext.java:726)
at com.microsoft.aad.adal4j.AuthenticationContext.access$100(AuthenticationContext.java:61)
at com.microsoft.aad.adal4j.AuthenticationContext$1.call(AuthenticationContext.java:128)
at com.microsoft.aad.adal4j.AuthenticationContext$1.call(AuthenticationContext.java:117)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Exception in thread "main" java.util.concurrent.ExecutionException: java.net.UnknownHostException: login.microsoftonline.com
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at com.inetpsa.spd.raloyalty.action.GenerateToken.main(GenerateToken.java:25)
Caused by: java.net.UnknownHostException: login.microsoftonline.com
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:673)
at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:259)
at com.microsoft.aad.adal4j.AdalOAuthRequest.configureHeaderAndExecuteOAuthCall(AdalOAuthRequest.java:117)
at com.microsoft.aad.adal4j.AdalOAuthRequest.send(AdalOAuthRequest.java:72)
at com.microsoft.aad.adal4j.AdalTokenRequest.executeOAuthRequestAndProcessResponse(AdalTokenRequest.java:72)
at com.microsoft.aad.adal4j.AuthenticationContext.acquireTokenCommon(AuthenticationContext.java:726)
at com.microsoft.aad.adal4j.AuthenticationContext.access$100(AuthenticationContext.java:61)
at com.microsoft.aad.adal4j.AuthenticationContext$1.call(AuthenticationContext.java:128)
at com.microsoft.aad.adal4j.AuthenticationContext$1.call(AuthenticationContext.java:117)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

I have almost the same code working (for the last day or so)
However my code snippet look like the folowing
String authority = "https://login.microsoftonline.com/{your tenant id}";
ExecutorService service = Executors.newFixedThreadPool(1);
AuthenticationContext context = new AuthenticationContext(authority, true, service);
Are you behind a firewall that isn't allowing you reach login.microsoftonline.com?
You can use the following API page to login and generate a report token
https://learn.microsoft.com/en-gb/rest/api/power-bi/embedtoken/reports_generatetokeningroup

is your login.microsoftonline.com behind a proxy? if so, set your proxy with the either set of jvm arguments depending if it is http or https:
HTTPS
-Dhttps.proxyHost=proxy-name-without-https.com -Dhttps.proxyPort=proxy-port
ex. -Dhttps.proxyHost=myproxy.com -Dhttps.proxyPort=2021
or
HTTP
-Dhttp.proxyHost=proxy-name-without-http.com -Dhttp.proxyPort=proxy-port
ex. -Dhttp.proxyHost=myproxy.com -Dhttp.proxyPort=2021

Java embedded HttpServer: socket leak

I have next proxy handler (used embedded HttpServer and Jersey client):
#Override
public void handle(HttpExchange httpExchange) throws IOException {
....
....
WebTarget webTarget = httpClientHolder.getClient().target(url);
try (Response response = webTarget.request().get()) {
if (response.getStatusInfo().getStatusCode() != HttpStatus.SC_OK) {
logger.warn("Failed to download resource, url = " + url + " code = " +
response.getStatusInfo().getStatusCode());
throw new HttpException("Not found", 404);
}
httpExchange.sendResponseHeaders(200, response.getLength());
final InputStream is = response.readEntity(InputStream.class);
try (final OutputStream os = httpExchange.getResponseBody()) {
IOUtils.copy(is, os, 128);
} catch (IOException e) {
logger.warn("Error proxy data", e);
}
}
....
}
sometimes the following happens
Error proxy data
java.io.IOException: Broken pipe
at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[?:1.8.0_191]
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) ~[?:1.8.0_191]
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[?:1.8.0_191]
at sun.nio.ch.IOUtil.write(IOUtil.java:65) ~[?:1.8.0_191]
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) ~[?:1.8.0_191]
at sun.net.httpserver.Request$WriteStream.write(Request.java:391) ~[?:1.8.0_191]
at sun.net.httpserver.FixedLengthOutputStream.write(FixedLengthOutputStream.java:78) ~[?:1.8.0_191]
at sun.net.httpserver.PlaceholderOutputStream.write(ExchangeImpl.java:444) ~[?:1.8.0_191]
at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:2315) ~[cache-1.0-SNAPSHOT-jar-with-dependencies.jar:?]
at org.apache.commons.io.IOUtils.copy(IOUtils.java:2270) ~[cache-1.0-SNAPSHOT-jar-with-dependencies.jar:?]
at server.TimelineVttHandler.handle(TimelineVttHandler.java:129) [cache-1.0-SNAPSHOT-jar-with-dependencies.jar:?]
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79) [?:1.8.0_191]
at sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:83) [?:1.8.0_191]
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:82) [?:1.8.0_191]
at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:675) [?:1.8.0_191]
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79) [?:1.8.0_191]
at sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:647) [?:1.8.0_191]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_191]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_191]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
Suppressed: java.io.IOException: insufficient bytes written to stream
at sun.net.httpserver.FixedLengthOutputStream.close(FixedLengthOutputStream.java:89) ~[?:1.8.0_191]
at sun.net.httpserver.PlaceholderOutputStream.close(ExchangeImpl.java:454) ~[?:1.8.0_191]
at server.TimelineVttHandler.handle(TimelineVttHandler.java:130) [cache-1.0-SNAPSHOT-jar-with-dependencies.jar:?]
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79) [?:1.8.0_191]
at sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:83) [?:1.8.0_191]
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:82) [?:1.8.0_191]
at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:675) [?:1.8.0_191]
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79) [?:1.8.0_191]
at sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:647) [?:1.8.0_191]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_191]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_191]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
It is not great problem for client, but resource still alive and we can see it via lsof:
lsof -n -p 14121 | grep TCPv6
java 13161 cache 143u sock 0,9 0t0 3617991518 protocol: TCPv6
java 13161 cache 180u sock 0,9 0t0 3618027565 protocol: TCPv6
java 13161 cache 184u sock 0,9 0t0 3618017649 protocol: TCPv6
This sockets will never closed while run the application.
How to correct perform it ?

I solved this problem by throwing IOException from handle method.
try (final OutputStream os = httpExchange.getResponseBody()) {
IOUtils.copy(is, os, 128);
} catch (IOException e) {
logger.warn("Error proxy data", e);
throw e;
}
I have got this thought from contract of method

Getting unknown exception while contacting Google Cloud Api through a Proxy Server

Sitting behind the Proxy Server of my corporate, i have difficulties, accessing the Google Speech API.
My code is the following (copied and modified from a sample from google):
System.setProperty("http.proxyHost", "x.x.x.x");
System.setProperty("http.proxyPort", "xxxx");
System.setProperty("https.proxyHost", "x.x.x.x");
System.setProperty("https.proxyPort", "xxxx");
FileInputStream credentialsStream = new FileInputStream("C:\\Path\\To\\Credentials.json");
GoogleCredentials credentials = GoogleCredentials.fromStream(credentialsStream);
FixedCredentialsProvider credentialsProvider = FixedCredentialsProvider.create(credentials);
SpeechSettings speechSettings = SpeechSettings.newBuilder().setCredentialsProvider(credentialsProvider).build();
try (SpeechClient speechClient = SpeechClient.create(speechSettings)) {
RecognitionConfig.AudioEncoding encoding = RecognitionConfig.AudioEncoding.LINEAR16;
int sampleRateHertz = 16000;
String languageCode = "de-DE";
RecognitionConfig config = RecognitionConfig.newBuilder().setEncoding(encoding)
.setSampleRateHertz(sampleRateHertz).setLanguageCode(languageCode).build();
String uri = "C:\\recordings\\testRec16hz.wav";
RecognitionAudio audio = RecognitionAudio.newBuilder().setUri(uri).build();
RecognizeResponse response = speechClient.recognize(config, audio);
}
Getting the following error:
Exception in thread "main" com.google.api.gax.rpc.UnknownException: io.grpc.StatusRuntimeException: UNKNOWN
at com.google.api.gax.rpc.ApiExceptionFactory.createException(ApiExceptionFactory.java:47)
at com.google.api.gax.grpc.GrpcExceptionCallable$ExceptionTransformingFuture.setException(GrpcExceptionCallable.java:118)
at com.google.api.gax.grpc.GrpcExceptionCallable$ExceptionTransformingFuture.onFailure(GrpcExceptionCallable.java:101)
at com.google.api.core.ApiFutures$1.onFailure(ApiFutures.java:61)
at com.google.common.util.concurrent.Futures$4.run(Futures.java:1123)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:435)
at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:900)
at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:811)
at com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:675)
at io.grpc.stub.ClientCalls$GrpcFuture.setException(ClientCalls.java:492)
at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:467)
at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:41)
at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:684)
at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:41)
at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:392)
at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:475)
at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:63)
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:557)
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$600(ClientCallImpl.java:478)
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:590)
at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: io.grpc.StatusRuntimeException: UNKNOWN
at io.grpc.Status.asRuntimeException(Status.java:526)
... 19 more
Caused by: java.nio.channels.UnresolvedAddressException
at sun.nio.ch.Net.checkAddress(Net.java:101)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:622)
at io.netty.util.internal.SocketUtils$3.run(SocketUtils.java:83)
at io.netty.util.internal.SocketUtils$3.run(SocketUtils.java:80)
at java.security.AccessController.doPrivileged(Native Method)
at io.netty.util.internal.SocketUtils.connect(SocketUtils.java:80)
at io.netty.channel.socket.nio.NioSocketChannel.doConnect(NioSocketChannel.java:308)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.connect(AbstractNioChannel.java:254)
at io.netty.channel.DefaultChannelPipeline$HeadContext.connect(DefaultChannelPipeline.java:1291)
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:545)
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:530)
at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.connect(CombinedChannelDuplexHandler.java:497)
at io.netty.channel.ChannelOutboundHandlerAdapter.connect(ChannelOutboundHandlerAdapter.java:47)
at io.netty.channel.CombinedChannelDuplexHandler.connect(CombinedChannelDuplexHandler.java:298)
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:545)
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:530)
at io.netty.handler.proxy.ProxyHandler.connect(ProxyHandler.java:181)
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:545)
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:530)
at io.netty.handler.ssl.SslHandler.connect(SslHandler.java:674)
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:545)
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:530)
at io.netty.handler.codec.http2.Http2ConnectionHandler.connect(Http2ConnectionHandler.java:459)
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:545)
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:530)
at io.netty.channel.ChannelDuplexHandler.connect(ChannelDuplexHandler.java:50)
at io.grpc.netty.ProtocolNegotiators$AbstractBufferingHandler.connect(ProtocolNegotiators.java:458)
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:545)
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:530)
at io.netty.channel.ChannelDuplexHandler.connect(ChannelDuplexHandler.java:50)
at io.grpc.netty.ProtocolNegotiators$AbstractBufferingHandler.connect(ProtocolNegotiators.java:458)
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:545)
at io.netty.channel.AbstractChannelHandlerContext.access$1000(AbstractChannelHandlerContext.java:38)
at io.netty.channel.AbstractChannelHandlerContext$11.run(AbstractChannelHandlerContext.java:535)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:403)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138)
... 1 more
I think the response might be directed from the proxy server and therefore not readable by the google sdk.
When I run without setting the proxy-properties, i get the following after a while:
com.google.api.gax.rpc.DeadlineExceededException: io.grpc.StatusRuntimeException: DEADLINE_EXCEEDED: deadline exceeded: -115304848173 ns from now
How can I read the Response to further information?
How do I proceed - do I need to contact the admin of the proxy server?

HttpClient4.5 throw exception on connecting server

I am want to hit the one rest service using httpclient. But facing problem. Here is my program to hit server. If I run this program from my local machine then it hit server fine and get the response as well.
But When I host this program to server and then hit the Rest Server then it thows and exception. I really not able to understand what is different between local and server enviornment.
HttpClient httpClient = HttpClientBuilder.create().build();
HttpPost httpPost = new HttpPost();
httpPost.setEntity(se);
HttpResponse resp = null;
String url = "http://gigilitytest.cloud.cms500.com/MMServer/mycircle/saveuserinfo";
URI uri = null;
RequestResult reqResult = new RequestResult();
try {
uri = new URI(url);
httpPost.setURI(uri);
System.out.println("***********************************----------1");
resp = httpClient.execute(httpPost);
System.out.println("***********************************----------2");
System.out.println("resp:" + resp);
Reader reader = new InputStreamReader(resp.getEntity().getContent());
reqResult = gson.fromJson(reader, RequestResult.class);
reader.close();
httpPost.releaseConnection();
} catch (URISyntaxException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
Exception is :
"preferedGenderType":"","imgUrl":"https%253A%252F%252Fscontent.xx.fbcdn.net%252Fv%252Ft1.0-1%252Fp50x50%252F16194964_10208251611276804_5467876133040299192_n.jpg%253Foh%253D63a59ee0a5dc9cdb0771135ffa7fab2d"} org.apache.http.conn.HttpHostConnectException: Connect to gigilitytest.cloud.cms500.com:80 [gigilitytest.cloud.cms500.com/10.101.4.223] failed: Connection refused at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:151) at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353) at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55) at com.gigility.rs.UserProfileRS.saveUserProfile(UserProfileRS.java:93) at com.controller.AjaxController.saveUserProfile(AjaxController.java:113) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:220) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) at javax.servlet.http.HttpServlet.service(HttpServlet.java:622) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:522) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:1110) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:785) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1425) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:74) at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:134) ... 51 more