[jBPM] - OSGi: Caused by: java.lang.ClassNotFoundException: org.drools.persistence.jpa.KnowledgeStoreServiceImpl
by Mariusz Cwikla
Mariusz Cwikla [https://community.jboss.org/people/mariuszcwikla] created the discussion
"OSGi: Caused by: java.lang.ClassNotFoundException: org.drools.persistence.jpa.KnowledgeStoreServiceImpl"
To view the discussion, visit: https://community.jboss.org/message/780506#780506
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Hello,
I'm trying to run JBPM 5.4 inside an OSGi container. I've encountered a problem when using JPAKnowledgeService.newStatefulKnowledgeSession.
I get following error:
java.lang.RuntimeException: Provider org.drools.persistence.jpa.KnowledgeStoreServiceImpl could not be set.
at org.drools.persistence.jpa.JPAKnowledgeService.loadProvider(JPAKnowledgeService.java:155)
at org.drools.persistence.jpa.JPAKnowledgeService.getJPAKnowledgeServiceProvider(JPAKnowledgeService.java:143)
at org.drools.persistence.jpa.JPAKnowledgeService.newStatefulKnowledgeSession(JPAKnowledgeService.java:122)
....
Caused by: java.lang.ClassNotFoundException: org.drools.persistence.jpa.KnowledgeStoreServiceImpl
I found out that JPAKnowledgeService uses reflection to instantiate KnowledgeStoreServiceImpl class. Both classes are in org.drools.persistence.jpa package, but one is knowledge-api-5.5.0.Final.jar and second is in drools-persistence-jpa-5.5.0.Final.jar.
I'm not an OSGi expert, but I think that both classes should be in one .jar file (currently it's "split packages" problem).
Currently I have a workaround to use KnowledgetStoreServiceImpl directly and not use JPAKnowledgeService.
Or is there another workaround?
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10 years, 8 months
[jBPM] - Human task escalation understanding
by javajbpmuser
javajbpmuser [https://community.jboss.org/people/javajbpmuser] created the discussion
"Human task escalation understanding"
To view the discussion, visit: https://community.jboss.org/message/796361#796361
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Hi community,
I have some questions about Human Task node in jbpm v5.4. Actually I am designing a sample process that contains two human tasks ,in the second one I had defined Escalation mechanism ( when task is not-started , set expires at to 60s and set user Id).
When process reaches the second node of my process I see that after 60s , that Task status ( in jbpm database table Task) changed from "Reserved" to "Ready", but no user is assigned on that task (actualOwner_id had been changed to NULL) . I was wondering what could be the cause of that ?
I tried to see the java API but I did not find how I can catch the escalation event for Human Task , May I have any idea or help about how I can do that ? because actually what I am trying to do is when "Human Task" had been reassigned to another user , I should call a Java method to update some data on my application.
Regards
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10 years, 9 months
[jBPM] - Problem with designer
by Demian Calcaprina
Demian Calcaprina [https://community.jboss.org/people/calca] created the discussion
"Problem with designer"
To view the discussion, visit: https://community.jboss.org/message/806098#806098
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Hi!
I have one problem in designer.
I create a new simple process, with an start and end node, in the designer inside guvnor 5.4. I save it.
Then, I update the process using Guvnor Rest API. I make a PUT to http://localhost:8080/drools-guvnor/rest/packages/TestNewPathways/assets/... http://localhost:8080/drools-guvnor/rest/packages/TestNewPathways/assets/..., with content type application-octet stream, passing the string.getBytes of the modified bpmn.
Then, I go to the designer, and I can see the changes into the process. But then, I try just to save the process there and I get an error into the screen, and an exception in logs that I will paste below. Any ideas of what could it cause it?
Thanks!
Demian
Error:
400 Sorry, a technical error occurred. Please contact a system administrator."
Exception
16:57:42,996 ERROR [org.drools.guvnor.server.RepositoryServiceServlet] (http--127.0.0.1-8080-17) Service method 'public abstract java.lang.String org.drools.guvnor.client.rpc.AssetService.checkinVersion(org.drools.guvnor.client.rpc.Asset) throws com.google.gwt.user.client.rpc.SerializationException' threw an unexpected exception: java.lang.NullPointerException: java.lang.NullPointerException
at org.drools.repository.AssetItem.updateContent(AssetItem.java:390) [guvnor-repository-5.4.0.Final.jar:5.4.0.Final]
at org.drools.guvnor.server.contenthandler.drools.BPMN2ProcessHandler.storeAssetContent(BPMN2ProcessHandler.java:155) [classes:]
at org.drools.guvnor.server.RepositoryAssetOperations.checkinVersion(RepositoryAssetOperations.java:180) [guvnor-webapp-core-5.4.0.Final.jar:5.4.0.Final]
at org.drools.guvnor.server.RepositoryAssetOperations$Proxy$_$$_WeldClientProxy.checkinVersion(RepositoryAssetOperations$Proxy$_$$_WeldClientProxy.java) [guvnor-webapp-core-5.4.0.Final.jar:5.4.0.Final]
at org.drools.guvnor.server.RepositoryAssetService.checkinVersion(RepositoryAssetService.java:155) [guvnor-webapp-core-5.4.0.Final.jar:5.4.0.Final]
at org.drools.guvnor.server.RepositoryAssetService$Proxy$_$$_WeldClientProxy.checkinVersion(RepositoryAssetService$Proxy$_$$_WeldClientProxy.java) [guvnor-webapp-core-5.4.0.Final.jar:5.4.0.Final]
at org.drools.guvnor.server.RepositoryServiceServlet.checkinVersion(RepositoryServiceServlet.java:596) [guvnor-webapp-core-5.4.0.Final.jar:5.4.0.Final]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569) [gwt-servlet-2.3.0.jar:]
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) [gwt-servlet-2.3.0.jar:]
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) [gwt-servlet-2.3.0.jar:]
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) [gwt-servlet-2.3.0.jar:]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:62) [weld-core-1.1.5.AS71.Final.jar:2012-02-10 15:31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
at org.jboss.solder.servlet.exception.CatchExceptionFilter.doFilter(CatchExceptionFilter.java:65) [solder-impl-3.1.1.Final.jar:3.1.1.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
at org.jboss.solder.servlet.event.ServletEventBridgeFilter.doFilter(ServletEventBridgeFilter.java:74) [solder-impl-3.1.1.Final.jar:3.1.1.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_25]
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10 years, 9 months