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Isue activiti kickstar!

activiti_user12

Already have activiti probe, explorer, cycle, modeler installing and working with mysql, but when i install new release of activiti 5.1 i have this problem:

Estado HTTP 500 -

type Informe de Excepción

mensaje

descripción El servidor encontró un error interno () que hizo que no pudiera rellenar este requerimiento.

excepción

javax.servlet.ServletException: java.lang.NullPointerException
   com.vaadin.terminal.gwt.server.AbstractApplicationServlet.handleServiceException(AbstractApplicationServlet.java:966)
   com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:523)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

causa raíz

java.lang.NullPointerException
   org.activiti.kickstart.service.AdhocWorkflowServiceImpl.<init>(AdhocWorkflowServiceImpl.java:58)
   org.activiti.kickstart.service.ServiceLocator.getAdhocWorkflowService(ServiceLocator.java:33)
   org.activiti.kickstart.ui.panel.AdhocWorkflowPanel.init(AdhocWorkflowPanel.java:78)
   org.activiti.kickstart.ui.panel.AdhocWorkflowPanel.<init>(AdhocWorkflowPanel.java:68)
   org.activiti.kickstart.ui.panel.AdhocWorkflowPanel.<init>(AdhocWorkflowPanel.java:72)
   org.activiti.kickstart.KickStartApplication.initDefaultWorkArea(KickStartApplication.java:83)
   org.activiti.kickstart.KickStartApplication.init(KickStartApplication.java:47)
   com.vaadin.Application.start(Application.java:549)
   com.vaadin.terminal.gwt.server.AbstractApplicationServlet.startApplication(AbstractApplicationServlet.java:1146)
   com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:459)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

nota La traza completa de la causa de este error se encuentra en los archivos de diario de Apache Tomcat/6.0.29.
Apache Tomcat/6.0.29

Any ideas?

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Comments

activiti_user12

my log!

06/01/2011 03:58:40 PM org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Servlet.service() para servlet Vaadin Application Servlet lanzó excepción
java.lang.NullPointerException
at org.activiti.kickstart.service.AdhocWorkflowServiceImpl.<init>(AdhocWorkflowServiceImpl.java:58)
at org.activiti.kickstart.service.ServiceLocator.getAdhocWorkflowService(ServiceLocator.java:33)
at org.activiti.kickstart.ui.panel.AdhocWorkflowPanel.init(AdhocWorkflowPanel.java:78)
at org.activiti.kickstart.ui.panel.AdhocWorkflowPanel.<init>(AdhocWorkflowPanel.java:68)
at org.activiti.kickstart.ui.panel.AdhocWorkflowPanel.<init>(AdhocWorkflowPanel.java:72)
at org.activiti.kickstart.KickStartApplication.initDefaultWorkArea(KickStartApplication.java:83)
at org.activiti.kickstart.KickStartApplication.init(KickStartApplication.java:47)
at com.vaadin.Application.start(Application.java:549)
at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.startApplication(AbstractApplicationServlet.java:1146)
at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:459)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)

jcosano

I think that "activiti-cfg.jar" is wrong… you should check it…

Copy (and checking database parameters) to "apps\apache-tomcat-6.0.29\webapps\activiti-kickstart\WEB-INF\lib"

jbarrez

Indeed, the nullpointer refers to a null process engine, which means that your process engine wasnt created.

Did you use the default activiti.cfg.jar.

activiti_user12

I edit 2 files:

      setup/build.properties and change the db parameter to your type of database {oracle | mysql | postgresql | h2}.

      setup/build.${db}.properties and change the JDBC connection parameters to those of your database installation.

and type from prompt

ant cfg.create

this generate the 2 new files have to use activiti.cfg, activiti-cfg.jar

but still with the same error! any ideas?

jbarrez

Please read http://activiti.org/userguide/index.html#N11E52

This is currently a known 'issue', since KickStart is not yet fully integrated with the rest of the stack.

jcosano

KickStart has it own activiti-cfg.jar

when you do: ant cfg.create

you create a new activiti-cfg.jar but you need copy manually to:

"apps\apache-tomcat-6.0.29\webapps\activiti-kickstart\WEB-INF\lib"

maybe is userful, modify build.xml and force copy to this location

activiti_user12

I edit 2 files:

      setup/build.properties and change the db parameter to your type of database {oracle | mysql | postgresql | h2}.

      setup/build.${db}.properties and change the JDBC connection parameters to those of your database installation.

and type from prompt

ant cfg.create

this generate the 2 new files have to use activiti.cfg, activiti-cfg.jar

but still with the same error! any ideas?

ok! let me see if i understand!

1) The comand i used from activiti/setup folder ant cfg.create) is for change the database use by Activiti Suite! By Suite i mean Explorer, Probe and Cycle…. they all use the same mechanism for changing the database, the same does not yet apply for KickStart coz currently not yet using the REST API…

2) i have to generate a new activiti.cfg.jar and place it in the apps/apache-tomcat-6.x/webapps/activiti-kickstart/WEB-INF/lib folder. why? already have one in this location!! is the same i generate at the step 1? I leave the original activiti.cfg.jar that i have in this location(apps/apache-tomcat-6.x/webapps/activiti-kickstart/WEB-INF/lib folder) and doesnt work! i put the new one generate in the step 1 and doesnt work….

3) How can i generate the new one? from where location?

Thank u 4 ur help!

jcosano

when you make cfg.create, you obtain a new cfg-activiti.jar but it's located under setup/build and not replace activiti-cfg inside tomcat.

In my case, I modify build xml and cfg.create, copy the new file to two location more:
- inside activiti-rest lib folder (tomcat)
- inside kickstar lib folder (tomcat)

Answering your questions:

1) Not correct, cfg.create is for create a new jar (for changind database properties, or others for sample mail server, history, job executor…) but not replace anything into the tomcat…

2) you need replace this jar, because is older, and you need copy your last version with correct properties.

3) using cfg.create that generates a jar into setup/build..

eldiegos

when you make cfg.create, you obtain a new cfg-activiti.jar but it's located under setup/build and not replace activiti-cfg inside tomcat.

In my case, I modify build xml and cfg.create, copy the new file to two location more:
- inside activiti-rest lib folder (tomcat)
- inside kickstar lib folder (tomcat)

Answering your questions:

1) Not correct, cfg.create is for create a new jar (for changind database properties, or others for sample mail server, history, job executor…) but not replace anything into the tomcat…

2) you need replace this jar, because is older, and you need copy your last version with correct properties.

3) using cfg.create that generates a jar into setup/build..

I have followed all the steps and i have the same problem than Activiti_user123. I'm trying activiti 5.1 in fedora with mysql.

Any other idea?

activiti_user12

when you make cfg.create, you obtain a new cfg-activiti.jar but it's located under setup/build and not replace activiti-cfg inside tomcat.

In my case, I modify build xml and cfg.create, copy the new file to two location more:
- inside activiti-rest lib folder (tomcat)
- inside kickstar lib folder (tomcat)

Answering your questions:

1) Not correct, cfg.create is for create a new jar (for changind database properties, or others for sample mail server, history, job executor…) but not replace anything into the tomcat…

2) you need replace this jar, because is older, and you need copy your last version with correct properties.

3) using cfg.create that generates a jar into setup/build..

Already generate new activiti-cfg.jar and copy in this locations:

- inside activiti-rest lib folder (tomcat)
- inside kickstar lib folder (tomcat)

still not working!! any ideas?

Pd: im working under wintendo with mysql

jbarrez

Did you copy the database driver to activiti-kickstart/WEB-INF/lib ?

If thats the case, probably somewhere in /apps/apache-tomcat-x/logs/catalina.out there will be a stacktrace stating that a suitable driver has not been found.

activiti_user12

[size=200]Solved![/size]

Amateur mistake! :roll:

i just copy from activiti-home\setup\files\dependencies\libs the file mysql-connector-java-5.1.6 to Tomcat 6.0\webapps\activiti-kickstart\WEB-INF\lib and everything works more than perfect!!!

Thank u verry much @jbarrez and @jcosano 4 ur help!!

Congrats in ur new release!!

jbarrez

Not an amateur mistake at all! I updated the userguide to include that the database driver must be installed, so thank you 😉

eldiegos

Great KickStart. I'm really expecting next version.

paulo_emerique1

Hi all, just to note I also was stuck on same point trying to run on Postgre 8.4. After copying cfg file and DB driver it is working great now!

I'll be working quite some hours on activiti and grails activiti plugin these days to build a workflow pilot project.

Congrats!

Paulo Cesar Emerique

jpp

I had the same problem, then I followed the instruction here and I copy the mysql driver in the WEB-INF/lib and it works.

Regards,

JP

rohran

As mentioned in the user guide, i copied the activity.cfg.jar to kickstart/lib when i tried to use the oracle db.

I still got the same exception described above, but you need to place oracle driver jar to the appserver instance for example : tomcat/lib, In your case, you need to copy mysql driver jar file to tomcat/lib if you use tomcat as server.

Once the oracle driver jar in place, I could able to see kickstart app up and running.

-rohran

when you make cfg.create, you obtain a new cfg-activiti.jar but it's located under setup/build and not replace activiti-cfg inside tomcat.

In my case, I modify build xml and cfg.create, copy the new file to two location more:
- inside activiti-rest lib folder (tomcat)
- inside kickstar lib folder (tomcat)

Answering your questions:

1) Not correct, cfg.create is for create a new jar (for changind database properties, or others for sample mail server, history, job executor…) but not replace anything into the tomcat…

2) you need replace this jar, because is older, and you need copy your last version with correct properties.

3) using cfg.create that generates a jar into setup/build..

I have followed all the steps and i have the same problem than Activiti_user123. I'm trying activiti 5.1 in fedora with mysql.

Any other idea?