Develop Reference

Distance Matrix API / java

I have a java program which calculates the distance and the journey time between two locations using the google matrix distance API. when I run my program everything goes fine but after a while I get this error:
java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
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.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:606)
Any ideas?
Thank you.

The error message "java.net.SocketTimeoutException: connect timed out"
suggests that the root cause of the problem is due to network connectivity failure. This could have been caused due to these issues:
Google Distance API is a paid service, which requires billing account. Connectivity to API may fail when quota / billing had exhausted.
API requires a key for authorization. Connectivity can fail if the key had expired.
Network connectivity failed between the client computer and the API had failed, possibly due to a faulty internet connection.
Verifying the billing account, API key and network connectivity can help resolve the issue.

BigQuery not picking up property set in java

I am trying to connect to BigQuery on a machine that requires all traffic to go through a proxy. I've set the http.proxyHost and http.proxyPort system variable in both Java and command line but I always get the following error:
com.google.cloud.bigquery.BigQueryException: Error getting access token for service account: Read timed out
at com.google.cloud.bigquery.spi.v2.HttpBigQueryRpc.translate(HttpBigQueryRpc.java:106)
at com.google.cloud.bigquery.spi.v2.HttpBigQueryRpc.create(HttpBigQueryRpc.java:206)
at com.google.cloud.bigquery.BigQueryImpl$5.call(BigQueryImpl.java:319)
at com.google.cloud.bigquery.BigQueryImpl$5.call(BigQueryImpl.java:316)
at com.google.api.gax.retrying.DirectRetryingExecutor.submit(DirectRetryingExecutor.java:105)
at com.google.cloud.RetryHelper.run(RetryHelper.java:76)
at com.google.cloud.RetryHelper.runWithRetries(RetryHelper.java:50)
at com.google.cloud.bigquery.BigQueryImpl.create(BigQueryImpl.java:315)
at com.google.cloud.bigquery.BigQueryImpl.create(BigQueryImpl.java:290)
at com.ad.google.bigquery.GoogleBigQuery.runGBQQuery_CCPA(GoogleBigQuery.java:172)
at com.ad.gogbq.test.Tester_GBQ.runQuery(Tester_GBQ.java:62)
at com.ad.gogbq.test.Tester_GBQ.main(Tester_GBQ.java:274)
Caused by: java.io.IOException: Error getting access token for service account: Read timed out
at com.google.auth.oauth2.ServiceAccountCredentials.refreshAccessToken(ServiceAccountCredentials.java:432)
at com.google.auth.oauth2.OAuth2Credentials.refresh(OAuth2Credentials.java:157)
at com.google.auth.oauth2.OAuth2Credentials.getRequestMetadata(OAuth2Credentials.java:145)
at com.google.auth.http.HttpCredentialsAdapter.initialize(HttpCredentialsAdapter.java:91)
at com.google.cloud.http.HttpTransportOptions$1.initialize(HttpTransportOptions.java:159)
at com.google.api.client.http.HttpRequestFactory.buildRequest(HttpRequestFactory.java:88)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.buildHttpRequest(AbstractGoogleClientRequest.java:430)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:549)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:482)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:599)
at com.google.cloud.bigquery.spi.v2.HttpBigQueryRpc.create(HttpBigQueryRpc.java:204)
... 10 more
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
at java.net.SocketInputStream.read(SocketInputStream.java:171)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
at sun.security.ssl.InputRecord.read(InputRecord.java:503)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:983)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
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.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:108)
at com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:79)
at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:995)
at com.google.auth.oauth2.ServiceAccountCredentials.refreshAccessToken(ServiceAccountCredentials.java:429)
I have successfully used the above system variables to open and read a web page on the machines in question. It seems like BigQuery isn't using these variables, I was wondering if anyone else has seen this?

In your question, it seems you were setting http.* properties, since all Google API access are through HTTPS, please make sure you set below 2 properties:
System.setProperty("https.proxyHost", "localhost");
System.setProperty("https.proxyPort", "3128");
See more on this doc.

Request timeout with Java but working on cURL and postman

I'm setting up google recaptcha on my java application and I'm getting connect timeout:
Caused by: org.apache.http.conn.ConnectTimeoutException: Connect to www.google.com:443 [www.google.com/172.217.168.164] failed: connect timed out
at org.apache.http.impl.conn.HttpClientConnectionOperator.connect(HttpClientConnectionOperator.java:134)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:319)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:363)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
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:106)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)
at com.mashape.unirest.http.HttpClientHelper.request(HttpClientHelper.java:138)
HttpClientHelper.java:138
... 2 more
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
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.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:244)
at org.apache.http.impl.conn.HttpClientConnectionOperator.connect(HttpClientConnectionOperator.java:1
To test if there was any problem with the network, I made the same request using Postman and cURL, both returned the expected response. Then I used postman to generate java code, ran it and got the same error.
Notice that in order for the request to work with Postman I had to turn off "Use System Proxy". This lead me to think that maybe java was using system proxy by default and tried to disable it with System.setProperty("java.net.useSystemProxies", "false"); (also tried with true). Still got same error.
Here is a example of the code used:
HttpResponse<String> response = Unirest.post("https://www.google.com/recaptcha/api/siteverify")
.header("response", "abc")
.header("secret", "abc")
.asString();
Thanks in advance.

Like so often, the reason was dead simple:
The target server only has an IPv4 address. Java for some reason tries to access the target using IPv6 and fails to do so. I assume that this kind of "halts" the ongoing process and this can only be remedied by aborting the hanging thread (what the timeout effectively does)
As soon as I addded -Djava.net.preferIPv4Stack=true to the call of my program, I was able to run it successfully.
source: HttpClient hits timeout but server is available and working flawlessly
maybe?

Rmi Server client remote conection with downloading code localhost

So lets begin... not a simple question at my point of view at least...
I have create an Rmi Server property works fine .
Inside to server i need to create a file if it rus for first time or overwrite it if it is already there. (1)
I have successfully created an rmi Client , i test the project works fine with the client class in the same project.
On my Rmi interface in some methods i need to pass Clients object as a parameter (2).
Here begins the problem . I need to run my Rmi Client multiple time but not using thread , I need to create another project that each one of them(client project), has the same code and run from there. When i run the Client from Servers project runs perfect, but When i run another distanced client it fails
giving me the common error for Security Mangager
run:
Exception in thread "main" java.security.AccessControlException: access denied ("java.net.SocketPermission" "127.0.0.1:1099" "connect,resolve")
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:472)
at java.security.AccessController.checkPermission(AccessController.java:884)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at java.lang.SecurityManager.checkConnect(SecurityManager.java:1051)
at java.net.Socket.connect(Socket.java:584)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.<init>(Socket.java:434)
at java.net.Socket.<init>(Socket.java:211)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:101)
at Client.<init>(Client.java:69)
at Client.main(Client.java:142)
C:\Users\blue-icon\AppData\Local\NetBeans\Cache\8.1\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 1 second)
So i googled and googled and saw that i need the security manager in order to give permission to a remote Client to download the Servers Code .So i add security Manager to server but because i use streams for my files(1) it gives me this error
Exception in thread "main" java.security.AccessControlException: access denied ("java.io.FilePermission" "Subscribe.txt" "read")
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:472)
at java.security.AccessController.checkPermission(AccessController.java:884)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at java.lang.SecurityManager.checkRead(SecurityManager.java:888)
at java.io.File.exists(File.java:814)
at RMIServer03.checkFile(RMIServer03.java:132)
at RMIServer03.<init>(RMIServer03.java:46)
at RMIServer03.main(RMIServer03.java:56)
(2) i cant compile my Server and interface on server project without an instance of clients Class because i need to pass it ass a parameter as i said
any help?

You misread. You need the security manager at the client, not the server.

Socket closed error while performing load testing on jmeter

I am trying to run my load test on jmeter for REST api which is returning JSON.
I am passing the following header information in Header manager
Authorization: Bearer VHFAJ0dxNQfJlzPmr7miaH4QOFeNVmez6RXVHX59uovrFAL6z5zMv9krpBAvOcNTwqHRFa8REaidlpuJSUMF8Ol38t7n-sHP2WQn0KmrEnFrtdo6XDRdhspVP1D72oIlu9sP_-rdv1MdsnakVewqrzZ9PeDiWhVKqRBTjWVlnZFpLS-CZ86DFanQ9cw7VZ67a1yOWC7_os7vZYeIhaQ8dM_8n_ocYzFDcCHELSGqnz3NHc9DRrQQfjM6xB17aRjUKQ4ZNV52Ss_1BKG8-5H7bMpi1QiAdDS17K55WrNAZMzgHeaP6UwtQwJyo_gxiaW5PlNJZNQQn4rZvNkIRd_V9Q
Content-Type: application/x-www-form-urlencoded
Accept: application/json
Few days ego I tried the same test on local internal server and it was working fine. Now I am running this on UAT env which is setup on AWS.
This is working fine with chrome Postman extension.
Also I have followed the below link but no success and getting the socket closed exception
Non HTTP response message: The target server failed to respond: Is my server failing to handle load
java.net.SocketException: Socket closed
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.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:127)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:294)
at org.apache.jmeter.protocol.http.sampler.MeasuringConnectionManager$MeasuredConnection.open(MeasuringConnectionManager.java:107)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:643)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.executeRequest(HTTPHC4Impl.java:517)
at org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.sample(HTTPHC4Impl.java:331)
at org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:74)
at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1146)
at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1135)
at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:434)
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:261)
at java.lang.Thread.run(Thread.java:745)
Please let me know if more information is required

If your UAT deployment is behind Elastic Load Balancer or Elastic IP it may be the situation when JMeter resolves IP address of only one server and it becomes overloaded while others are idle.
Try adding DNS Cache Manager to your Test Plan to see if it helps. Check out The DNS Cache Manager: The Right Way To Test Load Balanced Apps guide for more information on the domain.

You should read this:
https://wiki.apache.org/jmeter/JMeterSocketClosed
Note Socket closed can be an issue with your server.