Develop Reference

After deploy Google App Engine returns HTTP response code 403

I've done another deploys and all was fine, but after finishing the app, I'm getting this error. And the page request keeps loading.
Do I need to configure something in "IAM"?
Java 11
Standard Environment
h2 DB
Spring boot
The stack trace from Google Cloud:
java.io.IOException: Server returned HTTP response code: 403 for URL: https://clouddebugger.googleapis.com/v2/controller/debuggees/register at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1919) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1515) at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:250)
at com.google.devtools.cdbg.debuglets.java.GcpHubClient.registerDebuggee (Unknown Source)
I've got new data using Stackdriver debug.
"message": "Stackdriver Debugger API has not been used in project
929024293238 before or it is disabled. Enable it by visiting
https://console.developers.google.com/apis/api/clouddebugger.googleapis.com/overview?project=929024293238
then retry. If you enabled this API recently, wait a few minutes for
the action to propagate to our systems and retry.",

Just a note if somebody else stumbles across this error: I had the same message in Google's App Engine dashboard popping up up to 60 times in a couple of minutes.
Enabling the Stackdriver Debugging API, as linked above, solved it. No more error logs (of that kind) were being produced. The weired thing is that the Stackdriver Debugging API should have been turned on by default for my standard environment.

The log wasn't very informative.
I change the application port from 8000 to 8080.
application.properties:
server.port=${PORT:8080}
Now the app is running fine.

SOAP web service returns data on and off

My source system provides SOAP url (hosted in IIS server) which we use it to get data, but lately we cannot pull data where it fails with nothing more than this msg in my side
"org.apache.axiom.om.OMException: SOAP message MUST NOT contain a Document Type Declaration(DTD)"
When the issue was debugged on the other side we got the following error
DEBUG httpclient.333.content [main] << " [0x9]IIS received the request; however, an internal error occurred during the processing of the request. The root cause of this error depends on which module handles the request and what was happening in the worker process when this error occurred."
The team that developed this service too cannot provide us anything useful info like where their app fails or any other useful info. A bizzare scenario occurs every now and then, wherein a data pull is successful in a test server but fails in prod server even when both of them point to the same SOAP url.
Everything worked fine as long as they hosted it in Apache tomcat, things worsened after they moved to IIS.
I want to know what settings to be looked at to resolve the issue.

How to enable server stack-trace for Rest calls in IBM Mobile First 8

In MF8, when I try to hit Rest Service URLs I am unable to get the stack trace when server returns a 500 error. I get the below error in POSTMAN.
"Unexpected error in server, see logs"
How can I enable the server stack trace?

It's unclear if you're using the devkit or the Mobile Foundation service.
Assuming you're using the devkit, you can find the logs in the devkit-folder/mfp-server/usr/servers/mfp/logs folder... there you will see a messages.log file.

Passing end-user details from client to real backend endpoint via JWT token in WSO2 APIM

I am new to WSO2 API Manager using version 1.9.1. I am trying to implement the WSO2 APIM + JWT assertion looking at http://lalajisureshika.blogspot.in/2013/06/passing-end-user-details-from-client-to.html and http://sumedha.blogspot.in/2012/08/using-jwt-to-send-application-user.html (but the steps are not too good enough to understand). I changed following from <APIM_HOME>/repository/conf/api-manager.xml
<APIConsumerAuthentication>
<SecurityContextHeader>X-JWT-Assertion</SecurityContextHeader>
<ClaimsRetrieverImplClass>org.wso2.carbon.apimgt.impl.token.DefaultClaimsRetriever</ClaimsRetrieverImplClass>
<ConsumerDialectURI>http://wso2.org/claims</ConsumerDialectURI>
<SignatureAlgorithm>SHA256withRSA</SignatureAlgorithm>
<EnableTokenGeneration>true</EnableTokenGeneration>
</APIConsumerAuthentication>
Please find attachment of few images, so it will give more idea about the failure:
I also subscribe my application and when try to execute command from "API Console", I see very wired error.
Also TCP/IP Monitor tool shows
Please help me what is the issue is?

Can you provide the error log which is printed in the wso2carbon.log (< APIM Home>/reposiory/logs) or terminal. it will be more useful to identify the reason to you error.
or else you can try other way To capture the outgoing message as mentioned below
Uncomment
log4j.logger.org.apache.synapse.transport.http.headers=DEBUG
log4j.logger.org.apache.synapse.transport.http.wire=DEBUG
in the log4j.properties file which can be found from {AM_Home}/repository/conf
restart server and invoke the subscribed api. you will get message like this in APIM with JWT-Assertion.
TID: [0] [AM] [2013-06-29 09:05:05,548] DEBUG {org.apache.synapse.transport.http.headers} - http-outgoing-1>>X-JWT-Assertion: eyJ0eXAiOiJKV1QiLCJhbGciOiJTSEEyNTZ3aXRoUlNBIiwieDV0IjoiTm1KbU9HVXhNelpsWWpNMlpEUmhOVFpsWVRBMVl6ZGhaVFJpT1dFME5XSTJNMkptT1RjMVpBPT0ifQ==.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.YtVaDtRYtfUkVDvwe9V8oqsXK8OkB4HUhsQS2z3ngWRNjAktSKWlH+Is9T5EQnsg8hrsJQ4nKDdwDWHAUIFxIsb7bX/Y1O+WSLMLZYQ11WVzFaw50BJuqPbL9ZOfux1iRnm4ZbxClVSan72g/w8a05UnCvsGyIh5oCP4RUsAhXo= {org.apache.synapse.transport.http.headers}

Exception when submitting a form with recaptcha

I have created a web form which is having few input text fields and a recaptcha field. I am using http://www.google.com/recaptcha/api/verify url to verify the recaptcha input values. I've used connection.getInputStream() of java.net.URLConnection to get the responses. But when I submit the form I received below exception from the server at connection.getInputStream() point. I have googled for possible solutions but I was failed to find a suitable answer for the issue. What could be the possible reason for this?
Exception is:
Server returned HTTP response code: 502 for URL: http://www.google.com/recaptcha/api/verify
My application configurations are listed below:
Apache Tomcat 7.0.47
Struts2 framework
Application running OS is Windows 2003 server/32bit
Above url is not blocked by my firewall or gateway as the application worked fine when I was using jboss server. The issue occured when I migrated to Tomcat server. And also this exception doesn't occure frequently as well. Sometime it submit the form successfully but sometime it gives the above exception, couldn't figure out the pattern it occur. Kindly appreciate if anyone could help me on this.