[jBPM6 remote REST API] [RESOLVED] Unable to deploy No Persistence provider for EntityManager named strategy=singleton

[vquartara]

Hello everybody,

I'm trying to use REST API to dpeloy a project into jBPM. (refer to: Chapter 17. Remote API)

I'm using a simple rest client (Google Chrome's Advanced Rest Client).

I send a POST to http://localhost:8080/jbpm-console/rest/deployment/it.visura:test-bpm:1.0.4/deploy with a form parameter strategy=singleton

I get this error (on the server log):

2015-07-10 14:59:42,242 ERROR [org.kie.remote.services.rest.async.cmd.DeploymentCmd] (EJB default - 9) Unable to deploy [it.visura:test-bpm:1.0.4]: java.lang.RuntimeException: javax.persistence.PersistenceException: No Persistence provider for EntityManager named strategy=singleton

If I try to deploy the same artifact from KIE workbench everything's fine.

Can someone help me?

Note that other REST calls are executed successfully. For example:

GET http://localhost:8080/jbpm-console/rest/deployment/it.visura:test-bpm:1.0.4

returns 200 OK with body:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

<deployment-unit>

<groupId>it.visura</groupId>

<artifactId>test-bpm</artifactId>

<version>1.0.4</version>

<strategy>SINGLETON</strategy>

<status>DEPLOY_FAILED</status>

</deployment-unit>

[swiderski.maciej]

you can skip the strategy parameter as this is default strategy any way.

Strategy param should be query param so it should be appended to the URL:

http://localhost:8080/jbpm-console/rest/deployment/it.visura:test-bpm:1.0.4/deploy?strategy=singleton

HTH

[vquartara]

If I append strategy param to the URL the result is 400 Bad Request

If I skip the strategy param the result is 400 Bad Request

server stacktrace:

WARN  [org.jboss.resteasy.core.ExceptionHandler] (default task-102) failed to execute: javax.ws.rs.BadRequestException: HTTP 400 Bad Request

Caused by: javax.ws.rs.core.NoContentException: No content.  Content-Length is 0

the only way to get a 2xx is to send strategy parameter as payload. this way I get 202 Accepted with response:

<deployment-job-result>

<identifier>5</identifier>

<operation>DEPLOY</operation>

<deploymentUnit>

<groupId>it.visura</groupId>

<artifactId>test-bpm</artifactId>

<version>1.0.4</version>

<strategy>SINGLETON</strategy>

<status>ACCEPTED</status>

</deploymentUnit>

<success>true</success>

<explanation>deploy job accepted.</explanation>

</deployment-job-result>

but when I check the server log I see the mentioned exception (javax.persistence.PersistenceException: No Persistence provider for EntityManager named strategy=singleton)

What can I do? I don't understand the error. What jBPM tries to do when it receive the request?

[vquartara]

RESOLVED

the problem was in Request Content-Type: must be application/json (I was using text/plain)

using correct content-type no parameter is needed (defaults are used).