REST connector ChangePassJSON: NullPointerException: Cannot invoke method size() on null object

[FabianaS]

Hello,

I'm working on a REST connector that should call a custom Web Service to first receive a bearer access token for connection, and then do another API call for the ChangePassJSON.

Connectivity is working fine and also a simple API "GET" call inside the testing block is working fine. 

Problem is with the API in the ChangePassJSON.

After changing password from the "Change account Password for self" in Saviynt, a task is created. When I run the job for provisioning, the job is successful but the task remains in Pending status.

Also, from Web Service logs, it seems that the server does not receive neither the call for requesting access token nor the call of the change password API.

API is working fine from Postman.

ChangePassJSON:

{

   "http":{

      "url":"http://aaa.aaa.aaa.aaa:9001/api/changepsw",

      "httpHeaders":{

         "Authorization":"${access_token}",

         "Content-Type":"application/json"

      },

      "httpContentType":"application/json",

      "httpMethod":"POST",

      "httpParams":{

         "username":"${username}",

         "newPassword":"${password}"

      }

   },

   "successResponse":[

   ],

   "successResponsePath":"",

   "errors":[

      "Couldn't authenticate you"

   ],

   "errorPath":"error"

}

I'm attaching the logs and it seems this is the main error: Error in processWebservicejava.lang.NullPointerException: Cannot invoke method size() on null object

Thank you

[stalluri]

@FabianaS 
Can you try these and share the logs in text format.

${task.password}
${randompassword}
${account_password} 

[FabianaS]

with ${task.password}

2024-09-09T13:48:34.874+00:00	ecm-worker	services.ArsTaskHelperService	quartzScheduler_Worker-8-9rp2v	DEBUG	Validating tasks for Securitysystem - WS_PSWSYNC
2024-09-09T13:48:34.874+00:00	ecm-worker	services.ArsTaskHelperService	quartzScheduler_Worker-8-9rp2v	DEBUG	accountName = f.sessa , taskType = 5 accountkey = 174402
2024-09-09T13:48:34.881+00:00	ecm-worker	pam.PamService	quartzScheduler_Worker-8-9rp2v	DEBUG	inside convertJsonStringToMap
2024-09-09T13:48:34.881+00:00	ecm-worker	pam.PamService	quartzScheduler_Worker-8-9rp2v	DEBUG	rotateKey - true
2024-09-09T13:48:34.889+00:00	ecm-worker	pam.PamService	quartzScheduler_Worker-8-9rp2v	DEBUG	Granular Password Rotation is : 0
2024-09-09T13:48:34.898+00:00	ecm-worker	services.ArsTaskService	quartzScheduler_Worker-8-9rp2v	DEBUG	Calling provisionAccountsAccess with Sec System - WS_PSWSYNC and tasklist - [f.sessa:[com.saviynt.ecm.task.ArsTasks : 1969]]
2024-09-09T13:48:34.898+00:00	ecm-worker	rest.RestProvisioningService	quartzScheduler_Worker-8-9rp2v	DEBUG	Processing Change Account Password Task for REST
2024-09-09T13:48:34.899+00:00	ecm-worker	rest.RestProvisioningService	quartzScheduler_Worker-8-9rp2v	DEBUG	initializing Provisioning connection
2024-09-09T13:48:34.902+00:00	ecm-worker	rest.RestProvisioningService	quartzScheduler_Worker-8-9rp2v	DEBUG	Tasks to work on = 1
2024-09-09T13:48:34.902+00:00	ecm-worker	rest.RestProvisioningService	quartzScheduler_Worker-8-9rp2v	DEBUG	accounts accountID =f.sessa
2024-09-09T13:48:34.902+00:00	ecm-worker	rest.RestProvisioningService	quartzScheduler_Worker-8-9rp2v	DEBUG	account: f.sessa
2024-09-09T13:48:34.902+00:00	ecm-worker	rest.RestProvisioningService	quartzScheduler_Worker-8-9rp2v	DEBUG	account?.systemid: 14
2024-09-09T13:48:34.928+00:00	ecm-worker	services.SaviyntCommonUtilityService	quartzScheduler_Worker-8-9rp2v	DEBUG	Enter getStandardBindingVariable
2024-09-09T13:48:34.930+00:00	ecm-worker	services.SaviyntCommonUtilityService	quartzScheduler_Worker-8-9rp2v	DEBUG	Exit getStandardBindingVariable
2024-09-09T13:48:34.930+00:00	ecm-worker	rest.RestProvisioningService	quartzScheduler_Worker-8-9rp2v	ERROR	Error in processWebservicejava.lang.NullPointerException: Cannot invoke method size() on null object
2024-09-09T13:48:34.930+00:00	ecm-worker	rest.RestProvisioningService	quartzScheduler_Worker-8-9rp2v	DEBUG	Task Response: null
2024-09-09T13:48:34.931+00:00	ecm-worker	rest.RestProvisioningService	quartzScheduler_Worker-8-9rp2v	DEBUG	Result: false
2024-09-09T13:48:34.933+00:00	ecm-worker	services.ArsTaskService	quartzScheduler_Worker-8-9rp2v	DEBUG	changePasswordAccountTarget - res - true
2024-09-09T13:48:34.934+00:00	ecm-worker	services.ArsTaskService	quartzScheduler_Worker-8-9rp2v	DEBUG	Inside updateProvisioningTries..
2024-09-09T13:48:34.948+00:00	ecm-worker	services.ArsTaskService	quartzScheduler_Worker-8-9rp2v	DEBUG	Enter completePasswordTasks
2024-09-09T13:48:34.948+00:00	ecm-worker	services.ArsTaskService	quartzScheduler_Worker-8-9rp2v	DEBUG	Exit completePasswordTasks

${randompassword}

2024-09-09T13:56:11.268+00:00

ecm-worker

services.ArsTaskHelperService

quartzScheduler_Worker-1-9rp2v

DEBUG

Validating tasks for Securitysystem - WS_PSWSYNC

2024-09-09T13:56:11.269+00:00

ecm-worker

services.ArsTaskHelperService

quartzScheduler_Worker-1-9rp2v

DEBUG

accountName = f.sessa , taskType = 5 accountkey = 174402

2024-09-09T13:56:11.276+00:00

ecm-worker

pam.PamService

quartzScheduler_Worker-1-9rp2v

DEBUG

inside convertJsonStringToMap

2024-09-09T13:56:11.276+00:00

ecm-worker

pam.PamService

quartzScheduler_Worker-1-9rp2v

DEBUG

rotateKey - true

2024-09-09T13:56:11.283+00:00

ecm-worker

pam.PamService

quartzScheduler_Worker-1-9rp2v

DEBUG

Granular Password Rotation is : 0

2024-09-09T13:56:11.293+00:00

ecm-worker

services.ArsTaskService

quartzScheduler_Worker-1-9rp2v

DEBUG

Calling provisionAccountsAccess with Sec System - WS_PSWSYNC and tasklist - [f.sessa:[com.saviynt.ecm.task.ArsTasks : 1969]]

2024-09-09T13:56:11.294+00:00

ecm-worker

rest.RestProvisioningService

quartzScheduler_Worker-1-9rp2v

DEBUG

Processing Change Account Password Task for REST

2024-09-09T13:56:11.294+00:00

ecm-worker

rest.RestProvisioningService

quartzScheduler_Worker-1-9rp2v

DEBUG

initializing Provisioning connection

2024-09-09T13:56:11.297+00:00

ecm-worker

rest.RestProvisioningService

quartzScheduler_Worker-1-9rp2v

DEBUG

Tasks to work on = 1

2024-09-09T13:56:11.297+00:00

ecm-worker

rest.RestProvisioningService

quartzScheduler_Worker-1-9rp2v

DEBUG

accounts accountID =f.sessa

2024-09-09T13:56:11.297+00:00

ecm-worker

rest.RestProvisioningService

quartzScheduler_Worker-1-9rp2v

DEBUG

account: f.sessa

2024-09-09T13:56:11.297+00:00

ecm-worker

rest.RestProvisioningService

quartzScheduler_Worker-1-9rp2v

DEBUG

account?.systemid: 14

2024-09-09T13:56:11.322+00:00

ecm-worker

services.SaviyntCommonUtilityService

quartzScheduler_Worker-1-9rp2v

DEBUG

Enter getStandardBindingVariable

2024-09-09T13:56:11.324+00:00

ecm-worker

services.SaviyntCommonUtilityService

quartzScheduler_Worker-1-9rp2v

DEBUG

Exit getStandardBindingVariable

2024-09-09T13:56:11.325+00:00

ecm-worker

rest.RestProvisioningService

quartzScheduler_Worker-1-9rp2v

ERROR

Error in processWebservicejava.lang.NullPointerException: Cannot invoke method size() on null object

2024-09-09T13:56:11.325+00:00

ecm-worker

rest.RestProvisioningService

quartzScheduler_Worker-1-9rp2v

DEBUG

Task Response: null

2024-09-09T13:56:11.325+00:00

ecm-worker

rest.RestProvisioningService

quartzScheduler_Worker-1-9rp2v

DEBUG

Result: false

2024-09-09T13:56:11.328+00:00

ecm-worker

services.ArsTaskService

quartzScheduler_Worker-1-9rp2v

DEBUG

changePasswordAccountTarget - res - true

2024-09-09T13:56:11.329+00:00

ecm-worker

services.ArsTaskService

quartzScheduler_Worker-1-9rp2v

DEBUG

Inside updateProvisioningTries..

2024-09-09T13:56:11.347+00:00

ecm-worker

services.ArsTaskService

quartzScheduler_Worker-1-9rp2v

DEBUG

Enter completePasswordTasks

2024-09-09T13:56:11.347+00:00

ecm-worker

services.ArsTaskService

quartzScheduler_Worker-1-9rp2v

DEBUG

Exit completePasswordTasks

[rushikeshvartak]

Share in text file please

[FabianaS]

sure

[rushikeshvartak]

"2024-09-09T13:55:39.818+00:00","ecm","rest.RestProvisioningService","http-nio-8080-exec-545-tzzxj","DEBUG","Got Webservice API Response: [headers:[WWW-Authenticate: Bearer error="invalid_token", error_description="An error occurred while attempting to decode the Jwt: Signed JWT rejected: Another algorithm expected, or no matching key(s) found", error_uri="https://tools.ietf.org/html/rfc6750#section-3.1", X-Content-Type-Options: nosniff, X-XSS-Protection: 0, Cache-Control: no-cache, no-store, max-age=0, must-revalidate, Pragma: no-cache, Expires: 0, X-Frame-Options: DENY, Content-Length: 0, Date: Mon, 09 Sep 2024 13:55:39 GMT, Keep-Alive: timeout=60, Connection: keep-alive], responseText:, cookies:[], statusCode:401]"

Does other JSON's working ?

[rushikeshvartak]

Does it works from postman ?

[FabianaS]

yes

[rushikeshvartak]

Please share postman screenshot and curl command [Refer https://codingnconcepts.com/postman/how-to-generate-curl-command-from-postman/ ]



⚠️‼️‼️Do not upload any attachments that contain sensitive information, such as IP Addresses, URLs, Company/Employee Names, Email Addresses, etc.‼️‼️⚠️

[FabianaS]

cURL:

curl --location 'http://aaa.aaa.aaa.aaa:9001/api/changepsw' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer eyJraWQiOiIxMzg1OWY4Zi01MzY2LTRhNGUtYWYxYy0xOWUxMjI3NDk4MWIiLCJhbGciOiJSUzI1NiJ9.eyJpc3MiOiJodHRwOi8vMTY0LjEyOS4yMjAuMTY1OjkwMDEiLCJzdWIiOiJXU1N5bmNocm9JRCIsImF1ZCI6IldTU3luY2hyb0lEIiwibmJmIjoxNzI1ODkwNDIxLCJleHAiOjE3MjU4OTIyMjEsImlhdCI6MTcyNTg5MDQyMX0.rGgZPRxrzAqwDL1TSgx3fKM8koO89FTERikYEIy5JIfyEW_hn99604rvT4rpiwmFAueK1abJ80Un2gWdIoZxXHEDQxf5FfsSDK3ZpaTpseeaP97Z30imE1kJBsIFv49Cf_M0W6UeoIPHEtcja_hluNTL6_sXrbi0cGdxunSjPdOkcGUwjK6GO8JnlYdWQ8CZFJcwZBryTScnWWtyD6uJmdKGqowmXQ7t9pKeITK2kg-dk2q7gJv6BO6J8eH6syBbBJ1vteL8CvtZ6Px523RJCS9iT3Z7hck9O6WWstpkXzrxtmE6E7Yt6mehH50QQA41natr0ckuPrJIh0cLhI8q_g' \
--data '{
"username": "Test18",
"newPassword": "newPassword2!"
}'

[stalluri]

@FabianaS 

Change it to:

 "httpParams":"{}",
 "Properties":{
         "username":"${username}",
         "newPassword":"${password}"
}

[FabianaS]

i got same error from logs
Error in processWebservicejava.lang.NullPointerException: Cannot invoke method size() on null object

[rushikeshvartak]

Can you share configs screenshot to validate its done in proper block

[FabianaS]

Do you mean the connectionJSON?

{

   "authentications": {

       "acctAuth": {

           "authType": "oauth2",

           "url": "http://aaa.aaa.aaa.aaa:9001/oauth2/token",

           "httpMethod": "POST",

           "httpParams": {

"grant_type": "client_credentials"

},

           "httpHeaders": {

               "Content-Type": "application/x-www-form-urlencoded",

               "Authorization": "Basic xxxxxxxxxxxx"

           },

           "expiryError": "ExpiredAuthenticationToken",

           "authError": [

               "Unable to authenticate the client",

               "Invalid OAuth token Bearer"

           ],

           "retryFailureStatusCode": [

               401,

               403

           ],

"httpContentType": "application/x-www-form-urlencoded",

           "errorPath": "error.code",

           "maxRefreshTryCount": 5,

           "tokenResponsePath": "access_token",

           "tokenType": "Bearer",

"testConnectionParams": {

       "http": {

         "url": "http://aaa.aaa.aaa.aaa:9001/api/test",

         "httpHeaders": {

 "Content-Type": "application/x-www-form-urlencoded",

           "Authorization": "${access_token}"

         },

         "httpMethod": "GET"

       },

"httpParams":{},

       "successResponse": [],

       "successResponsePath": "",

       "errors": [

         "Couldn't authenticate you"

       ],

"httpContentType": "application/x-www-form-urlencoded",

       "errorPath": "error"

     }

       }

   }

}

Here is the config:

Unfortunately ChangePassJSON is the only JSON I'm developing on this REST connector. Connection and test is working, Im also able to see it from my server logs:

[This post has been edited by a Moderator to remove sensitive information.]

[rushikeshvartak]

Share postman screenshot of authentication

[stalluri · Accepted solution]

@FabianaS 

{
    "call": [
        {
            "name": "call1",
            "connection": "acctAuth",
            "url": "http://aaa.aaa.aaa.aaa:9001/api/changepsw",
            "httpMethod": "POST",
            "httpParams": "{\"username\": \"${user.username}\", \"newPassword\": \"${password}\"}",
            "httpHeaders": {
                "Authorization": "${access_token}"
            },
            "httpContentType": "application/json",
            "successResponses": {
                "statusCode": [
                    201,
                    200,
                    204
                ]
            }
        }
    ]
}