Invoking JBPM business process from Seam pageflow

[aniket_nakhate]

Hi,

I'm trying to invoke my business process from seam pageflow example. I have implemented NumberGuess pageflow example. I added myprocess.bpmn2 in component.xml file and myproject.jar file from JBPM into WEB\INF\lib of deployed war file.

<bpm:jbpm>

      <bpm:process-definitions>

        <value>myprocess.bpmn2</value>

      </bpm:process-definitions>

      <bpm:pageflow-definitions>

         <value>pageflow.jpdl.xml</value>

      </bpm:pageflow-definitions>

   </bpm:jbpm>

In pageflow.jpdl.xml, It is written as sub process.

<process-state name="Invoke">

      <sub-process name="myprocess"/>

      <transition to="displayGuess"/>

   </process-state>

Using: jboss-seam-2.3.1.Final,jbpm-6.1.0.Final,wildfly-8.1.0.Final as AS.

I'm not sure whether I'm on the right track. Can someone please help me invoke the business process from Seam pageflow.?

[manarh]

Please be warned that Seam 2.x doesn't work (actually nobody has tried that but it is almost true) with the latest JBPM 6.x or with 5.x or 4.x.

Community Seam 2.3.x was using my updated fork of JBPM 3.2.10.SP3 to Hibernate 4 API (jboss-seam/pom.xml at Seam_2_3 · seam2/jboss-seam · GitHub) but that was just a quick hack to use higher Hibernate 4 API instead of Hibernate 3 API.

If you would like to use JBPM 6 your path is Java EE 7 and CDI APIs.

[pjotrovsky]

Just to let you know: you can give it a try: jBPM 3 -> Hibernate 4.3 Migration: petrandreev/jBPM3 at hib43 · GitHub

(contains fixes for two forgotten JIRA issues, tests passed)

Unfortunately I`ll stick to jBPM3 too until all my processes are migrated to BPMN.

[sreenathac]

Hi Morek,

I am using 2.3.1 and JBPM 3.2 on Jboss 5.1 and now I am migrating to WildFly 8.2, as per my analysis wildfly 8.2 supports JBPM6.2 so I am planning to migrate from JBPM 3.2 to 6.2. As per above comments I understood that seam 2.3.1 will not support JBPM 6.

Is there any way to migrate my application to WidFly8.2.

Thanks,

Sreenath

[manarh]

Hi, you can use Seam 2.3.x with JBPM 3.2 on Wildfly with bundled Hibernate libs in your application.

If you need to use higher version of JBpm like 4/5/6 you should refactor your application and replace Seam 2 with CDI.

[sreenathac]

Hi Marek,

Thank you for your response, Is there any hibernate bundle lib which is already developed ?.If there is no such bundle,could you please share the classes which need to change and what is the impact on the existing hibernate,

[manarh]

Hi Petr,

Do you mean those fixes are missing on top of this my fork mareknovotny/jbpm3-seam at development · GitHub ? That is possible.

[manarh]

Hi Sreenath,

We are not on the same page , what I meant by bundling of hibernate jars is that you should include hibernate libs in your application deployment instead of relying on server runtime libraries. See an example in my older blog Seam 2 JPA example on JBoss AS7 in step 3 how to bundle hibernate jars in WAR type deployment. Similar way is when you need them in EAR deployment.

Hope that helps!

[sreenathac]

Hi Marek,

Thanks for your post, now we are on same page I guess. However I tried as you mentioned in the above link, but I am facing UserTransaction exception, please find the below error log.

20:58:15,535 INFO  [org.hibernate.cfg.Configuration] (MSC service thread 1-1) HHH000221: Reading mappings from resource: org/jbpm/taskmgmt/log/SwimlaneAssignLog.hbm.xml

20:58:15,543 INFO  [org.hibernate.cfg.Configuration] (MSC service thread 1-1) HHH000041: Configured SessionFactory: null

20:58:15,798 INFO  [org.hibernate.dialect.Dialect] (MSC service thread 1-1) HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect

20:58:15,985 INFO  [org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory] (MSC service thread 1-1) HHH000397: Using ASTQueryTranslatorFactory

20:58:16,004 INFO  [org.hibernate.validator.internal.util.Version] (MSC service thread 1-1) HV000001: Hibernate Validator 5.1.3.Final

20:58:19,319 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./seam-todo: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./seam-todo: Failed to start service

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]

  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_11]

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_11]

  at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_11]

Caused by: java.lang.RuntimeException: org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.bpm.jbpm

  at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:222)

  at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:87)

  at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.start(UndertowDeploymentService.java:72)

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]

  ... 3 more

Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.bpm.jbpm

  at org.jboss.seam.Component.newInstance(Component.java:2208)

  at org.jboss.seam.contexts.Contexts.startup(Contexts.java:343)

  at org.jboss.seam.contexts.Contexts.startup(Contexts.java:317)

  at org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:143)

  at org.jboss.seam.init.Initialization.init(Initialization.java:813)

  at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:36)

  at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:173)

  at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:193)

  ... 7 more

Caused by: java.lang.RuntimeException: could not deploy a process definition

  at org.jboss.seam.bpm.Jbpm.installProcessDefinitions(Jbpm.java:303)

  at org.jboss.seam.bpm.Jbpm.startup(Jbpm.java:80)

  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_11]

  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_11]

  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_11]

  at java.lang.reflect.Method.invoke(Method.java:483) [rt.jar:1.8.0_11]

  at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)

  at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144)

  at org.jboss.seam.Component.callComponentMethod(Component.java:2313)

  at org.jboss.seam.Component.callCreateMethod(Component.java:2236)

  at org.jboss.seam.Component.newInstance(Component.java:2196)

  ... 14 more

Caused by: org.hibernate.TransactionException: Unable to locate JTA UserTransaction

  at org.hibernate.engine.transaction.internal.jta.JtaTransaction.locateUserTransaction(JtaTransaction.java:86)

  at org.hibernate.engine.transaction.internal.jta.JtaTransaction.doBegin(JtaTransaction.java:69)

  at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.begin(AbstractTransactionImpl.java:162)

  at org.hibernate.internal.SessionImpl.beginTransaction(SessionImpl.java:1435)

  at org.jbpm.persistence.db.DbPersistenceService.beginTransaction(DbPersistenceService.java:120)

  at org.jbpm.persistence.db.DbPersistenceService.getSession(DbPersistenceService.java:114)

  at org.jbpm.persistence.db.DbPersistenceService.getGraphSession(DbPersistenceService.java:328)

  at org.jbpm.JbpmContext.getGraphSession(JbpmContext.java:648)

  at org.jbpm.JbpmContext.deployProcessDefinition(JbpmContext.java:189)

  at org.jboss.seam.bpm.Jbpm.deployProcess(Jbpm.java:319)

  at org.jboss.seam.bpm.Jbpm.installProcessDefinitions(Jbpm.java:297)

  ... 24 more

20:58:19,356 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) JBAS014613: Operation ("deploy") failed - address: ([("deployment" => "todo-ear.ear")]) - failure description: {"JBAS014671: Failed services" => {"jboss.undertow.deployment.default-server.default-host./seam-todo" => "org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./seam-todo: Failed to start service

    Caused by: java.lang.RuntimeException: org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.bpm.jbpm

    Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.bpm.jbpm

    Caused by: java.lang.RuntimeException: could not deploy a process definition

    Caused by: org.hibernate.TransactionException: Unable to locate JTA UserTransaction"}}

20:58:19,448 INFO  [org.jboss.as.server] (Controller Boot Thread) JBAS018559: Deployed "mysql-connector-java-5.1.23-bin.jar" (runtime-name : "mysql-connector-java-5.1.23-bin.jar")

20:58:19,547 INFO  [org.jboss.as.server] (ServerService Thread Pool -- 27) JBAS018559: Deployed "todo-ear.ear" (runtime-name : "todo-ear.ear")

20:58:19,608 INFO  [org.jboss.as.controller] (Controller Boot Thread) JBAS014774: Service status report

JBAS014777:   Services which failed to start:      service jboss.undertow.deployment.default-server.default-host./seam-todo: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./seam-todo: Failed to start service

20:58:19,741 INFO  [org.jboss.as] (Controller Boot Thread) JBAS015961: Http management interface listening on http://127.0.0.1:10190/management

20:58:19,741 INFO  [org.jboss.as] (Controller Boot Thread) JBAS015951: Admin console listening on http://127.0.0.1:10190

20:58:19,741 ERROR [org.jboss.as] (Controller Boot Thread) JBAS015875: WildFly 8.2.0.Final "Tweek" started (with errors) in 24103ms - Started 614 of 692 services (3 services failed or missing dependencies, 123 services are lazy, passive or on-demand)

20:58:19,963 INFO  [org.jboss.as.jpa] (ServerService Thread Pool -- 42) JBAS011410: Stopping Persistence Unit (phase 2 of 2) Service 'todo-ear.ear/todo-ejb.jar#todo'

20:58:20,006 INFO  [org.jboss.as.jpa] (ServerService Thread Pool -- 42) JBAS011410: Stopping Persistence Unit (phase 1 of 2) Service 'todo-ear.ear/todo-ejb.jar#todo'

20:58:20,008 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-3) JBAS010409: Unbound data source [java:/todoDatasource]

20:58:20,027 INFO  [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-2) JBAS010418: Stopped Driver service with driver-name = mysql-connector-java-5.1.23-bin.jar

20:58:20,095 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-3) JBAS015877: Stopped deployment mysql-connector-java-5.1.23-bin.jar (runtime-name: mysql-connector-java-5.1.23-bin.jar) in 195ms

20:58:20,122 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-3) JBAS015974: Stopped subdeployment (runtime-name: jboss-seam.jar) in 221ms

20:58:20,122 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-3) JBAS015974: Stopped subdeployment (runtime-name: todo-ejb.jar) in 221ms

20:58:20,186 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-1) JBAS015974: Stopped subdeployment (runtime-name: todo.war) in 285ms

20:58:20,190 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-1) JBAS015877: Stopped deployment todo-ear.ear (runtime-name: todo-ear.ear) in 291ms

20:58:20,327 INFO  [org.jboss.as.repository] (DeploymentScanner-threads - 2) JBAS014901: Content removed from location D:\Migration_Workspace\Jboss\Jboss-8\wildfly-8.2.0.Final\standalone\data\content\c2\64e2114579474d13dd808a510fc74e762dda8c\content

20:58:20,327 INFO  [org.jboss.as.server] (DeploymentScanner-threads - 2) JBAS018558: Undeployed "mysql-connector-java-5.1.23-bin.jar" (runtime-name: "mysql-connector-java-5.1.23-bin.jar")

20:58:20,328 INFO  [org.jboss.as.server] (DeploymentScanner-threads - 2) JBAS018558: Undeployed "todo-ear.ear" (runtime-name: "todo-ear.ear")

20:58:20,330 INFO  [org.jboss.as.controller] (DeploymentScanner-threads - 2) JBAS014774: Service status report

JBAS014775:    New missing/unsatisfied dependencies:

      service jboss.deployment.subunit."todo-ear.ear"."jboss-seam.jar".deploymentCompleteService (missing) dependents: [service jboss.deployment.unit."todo-ear.ear".deploymentCompleteService]

Any inputs from your side ?

[manarh]

you still are using hibernate at this error Validator 5.1.3 from server runtime as in your log is:

20:58:16,004 INFO  [org.hibernate.validator.internal.util.Version] (MSC service thread 1-1) HV000001: Hibernate Validator 5.1.3.Final

20:58:19,319 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./seam-todo:

I should referenced DvdStore than the JPA example as there is also jbpm used anyway, read this Dvdstore example migration for JBoss AS 7.x too and what is important is addig exclusions for hibernate in jboss-deployment-structure.xml and set up transaction.manager_lookup_class property. Additionally set jboss.as.jpa.providerModule property in persistence.xml. As that DvdStore blog is for JBoss AS 7.0 there could be some small differences, but you should get the way how to solve it

[sreenathac]

Hi Marek,

Do I need to specifically exclude the hibernate validator or excluding hibernate is sufficient, I have my Jboss deployment Structure file under ear/META-INF folder and I have excluded hibernate. Still it is loading the hibernate validator 5.1.3. Below is my deployment Structure file

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

<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.2">

  <deployment>

  <exclusions> 

      <module name="org.hibernate" slot="main"/> 

    </exclusions> 

  <dependencies>

          <module name="org.dom4j" export="true"/>

          <module name="javax.faces.api" export="true"/>

          <module name="com.sun.jsf-impl" export="true"/>

          <module name="org.javassist" export="true"/>

          <module name="org.hibernate" export="true"/>

          <module name="org.hibernate.envers" export="true"/>

          <module name="org.apache.commons.logging" export="true"/>

          <module name="org.apache.commons.collections" export="true"/>

  </dependencies>

  </deployment>

  <sub-deployment name="project.war">  

      <exclusions> 

          <module name="javax.faces.api"/> 

          <module name="com.sun.jsf-impl"/> 

          <module name="org.hibernate"/> 

        </exclusions> 

        <dependencies> 

          <module name="javax.faces.api"/> 

          <module name="com.sun.jsf-impl"/> 

        </dependencies> 

  </sub-deployment>  

  <sub-deployment name="project-ejb.jar"> 

    <exclusions> 

      <module name="org.hibernate"/> 

    </exclusions> 

  </sub-deployment> 

</jboss-deployment-structure>

Please let me know if I am missing anything.

[sreenathac]

I am getting the below exception.

java.lang.ClassNotFoundException: org.jboss.seam.pdf.DocumentStoreServlet.

I identified this Jar exists in jboss-seam-pdf.jar and I added this Jar in project.war/WEB-INF/lib, still I am getting the ClassNoTFound Exception.

Below is my stack trace

21:44:45,029 INFO  [org.hibernate.validator.internal.util.Version] (MSC service thread 1-1) HV000001: Hibernate Validator 5.1.3.Final

21:44:45,966 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: Failed to start service jboss.deployment.subunit."project-ear.ear"."project.war".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.subunit."project-ear.ear"."project.war".POST_MODULE: JBAS018733: Failed to process phase POST_MODULE of subdeployment "project.war" of deployment "project-ear.ear"

  at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:166) [wildfly-server-8.2.0.Final.jar:8.2.0.Final]

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]

  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_11]

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_11]

  at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_11]

Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: java.lang.ClassNotFoundException: org.jboss.seam.pdf.DocumentStoreServlet from [Module "deployment.project-ear.ear.project.war:main" from Service Module Loader]

  at org.jboss.as.jaxrs.deployment.JaxrsScanningProcessor.checkDeclaredApplicationClassAsServlet(JaxrsScanningProcessor.java:292)

  at org.jboss.as.jaxrs.deployment.JaxrsScanningProcessor.scanWebDeployment(JaxrsScanningProcessor.java:154)

  at org.jboss.as.jaxrs.deployment.JaxrsScanningProcessor.deploy(JaxrsScanningProcessor.java:105)

  at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:159) [wildfly-server-8.2.0.Final.jar:8.2.0.Final]

  ... 5 more

Caused by: java.lang.ClassNotFoundException: org.jboss.seam.pdf.DocumentStoreServlet from [Module "deployment.project-ear.ear.project.war:main" from Service Module Loader]

  at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:213) [jboss-modules.jar:1.3.3.Final]

  at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:459) [jboss-modules.jar:1.3.3.Final]

  at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:408) [jboss-modules.jar:1.3.3.Final]

  at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:389) [jboss-modules.jar:1.3.3.Final]

  at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:134) [jboss-modules.jar:1.3.3.Final]

  at org.jboss.as.jaxrs.deployment.JaxrsScanningProcessor.checkDeclaredApplicationClassAsServlet(JaxrsScanningProcessor.java:290)

  ... 8 more

21:44:45,977 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) JBAS014613: Operation ("deploy") failed - address: ([("deployment" => "project-ear.ear")]) - failure description: {

    "JBAS014671: Failed services" => {"jboss.deployment.subunit.\"project-ear.ear\".\"project.war\".POST_MODULE" => "org.jboss.msc.service.StartException in service jboss.deployment.subunit.\"project-ear.ear\".\"project.war\".POST_MODULE: JBAS018733: Failed to process phase POST_MODULE of subdeployment \"project.war\" of deployment \"project-ear.ear\"

    Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: java.lang.ClassNotFoundException: org.jboss.seam.pdf.DocumentStoreServlet from [Module \"deployment.project-ear.ear.project.war:main\" from Service Module Loader]

    Caused by: java.lang.ClassNotFoundException: org.jboss.seam.pdf.DocumentStoreServlet from [Module \"deployment.project-ear.ear.project.war:main\" from Service Module Loader]"},

[manarh]

Sreenath Reddy wrote:

Hi Marek,

Do I need to specifically exclude the hibernate validator or excluding hibernate is sufficient, I have my Jboss deployment Structure file under ear/META-INF folder and I have excluded hibernate. Still it is loading the hibernate validator 5.1.3. Below is my deployment Structure file

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

<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.2">

  <deployment>

  <exclusions>

      <module name="org.hibernate" slot="main"/>

    </exclusions>

  <dependencies>

          <module name="org.hibernate" export="true"/>

          <module name="org.hibernate.envers" export="true"/>

I guess you still have included above the dependencies to hibernate. Just remove these 2 lines and it should be done. And certainly you need hibernate-validator.jar in META-INF/lib of your ear.

[manarh]

Are you sure you have updated war in your EAR deployment?

[sreenathac]

Hi Marek,

Thanks for the reply, I added the jboss-seam-pdf jar which is in Seam2.2.0 lib, but the class DocumentStoreServlet is not available in that Jar. I have added the appropriate jar and the issue was resolved. Bus still my jars are loading from hibernate 5.1. I and I am facing an issue while checking for Named queries, created a seperate thread for this

Hibernate NamedQuery Exception while migrating from Jboss 5.1 to WildFly 8.2

Please have a look at this issue and let me know if I am missing anything.