6 a.m.
bpmn2user [http://community.jboss.org/people/bpmn2user] created the discussion
"Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/578519#578519
--------------------------------------------------------------
Following error gets generated while trying to use the refresh button.
It perhaps looking for the older drools class instead of using
'org.jbpm.task.service.Command'.
Any comments?
Caused by: java.lang.ClassNotFoundException: org.drools.task.service.Command
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
-------------------------------------------------------------------------------------------------------------------------------
Here is the test code snippet:
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.drools.SystemEventListenerFactory;
import org.jbpm.task.service.TaskService;
import org.jbpm.task.service.TaskServiceSession;
import org.jbpm.task.service.mina.MinaTaskServer;
import org.jbpm.task.User;
public class TestJBPMHumanTask {
@SuppressWarnings("unchecked")
public static void main(String[] args) throws InterruptedException {
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("org.jbpm.task");
TaskService taskService = new TaskService(emf,
SystemEventListenerFactory.getSystemEventListener());
TaskServiceSession taskSession = taskService.createSession();
taskSession.addUser(new User("Administrator"));
// start server
MinaTaskServer server = new MinaTaskServer(taskService);
Thread thread = new Thread(server);
thread.start();
System.out.println("Server started ...");
Thread.sleep(5000);
//taskSession.dispose();
}
}
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2:41 a.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
Kris Verlaenen [http://community.jboss.org/people/KrisVerlaenen] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/579177#579177
--------------------------------------------------------------
The Eclipse Task View is a Drools-based plugin, that depended on Drools Flow and thus will
not work for jBPM5 CR1. We recently updated Drools to use jBPM5 as well so this error
should now be fixed. You'll have to update your eclipse to the latest Drools snapshot
plugin however.
Kris
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5:05 a.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
bpmn2user [http://community.jboss.org/people/bpmn2user] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/579407#579407
--------------------------------------------------------------
Thanks! Snapshot plug-in is good .
Here is an example I used.
public class TestJBPMHumanTask {
@SuppressWarnings("unchecked")
public static void main(String[] args) throws Exception {
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("org.jbpm.task");
TaskService taskService = new TaskService(emf,
SystemEventListenerFactory.getSystemEventListener());
TaskServiceSession taskSession = taskService.createSession();
taskSession.addUser(new User("Administrator"));
taskSession.addUser(new User("bob"));
// start server
MinaTaskServer server = new MinaTaskServer(taskService);
Thread thread = new Thread(server);
thread.start();
System.out.println("Server started ...");
KnowledgeBase kbase = readKnowledgeBase();
StatefulKnowledgeSession ksession = createSession(kbase);
KnowledgeRuntimeLogger logger =
KnowledgeRuntimeLoggerFactory.newThreadedFileLogger(ksession, "testlog", 1000);
ksession.getWorkItemManager().registerWorkItemHandler("Human Task", new
WSHumanTaskHandler());
ksession.startProcess("com.sample.bpmn.humantask");
logger.close();
}
private static KnowledgeBase readKnowledgeBase() throws Exception {
ProcessBuilderFactory.setProcessBuilderFactoryService(new
ProcessBuilderFactoryServiceImpl());
ProcessMarshallerFactory.setProcessMarshallerFactoryService(new
ProcessMarshallerFactoryServiceImpl());
ProcessRuntimeFactory.setProcessRuntimeFactoryService(new
ProcessRuntimeFactoryServiceImpl());
BPMN2ProcessFactory.setBPMN2ProcessProvider(new BPMN2ProcessProviderImpl());
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource("SampleHumanTask.bpmn2"),
ResourceType.BPMN2);
return kbuilder.newKnowledgeBase();
}
private static StatefulKnowledgeSession createSession(KnowledgeBase kbase) {
Properties properties = new Properties();
properties.put("drools.processInstanceManagerFactory",
"org.jbpm.process.instance.impl.DefaultProcessInstanceManagerFactory");
properties.put("drools.processSignalManagerFactory",
"org.jbpm.process.instance.event.DefaultSignalManagerFactory");
KnowledgeSessionConfiguration config =
KnowledgeBaseFactory.newKnowledgeSessionConfiguration(properties);
return kbase.newStatefulKnowledgeSession(config,
EnvironmentFactory.newEnvironment());
}
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9:10 p.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
candy_633 [http://community.jboss.org/people/candy_633] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/588166#588166
--------------------------------------------------------------
I also meet some problem when implement Human Task:
1) At first, I meet the following errors when I run Human Task: (then, according to the
error message, I *update slf4j-api-1.6.0.jar to slf4j-log4j12-1.6.1.jar*
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder
http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
javax.persistence.PersistenceException: [PersistenceUnit: org.jbpm.task] Unable to build
EntityManagerFactory
at
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)
at
org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:52)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)
at com.sample.ProcessTest.main(ProcessTest.java:57)
Caused by: org.hibernate.HibernateException: JDBC Driver class not found: org.h2.Driver
at
org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:89)
at
org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:137)
at
org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:29)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:89)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2101)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1325)
at
org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
at
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
... 4 more
Caused by: java.lang.ClassNotFoundException: org.h2.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:123)
at
org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84)
2) *After I update to slf4j-log4j12-1.6.1.jar, another error still shows:*
"java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:151)
at org.hibernate.ejb.Ejb3Configuration.<clinit>(Ejb3Configuration.java:107)
at
org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:124)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:52)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)
at com.sample.ProcessTest.main(ProcessTest.java:57)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 6 more
http://community.jboss.org/message/581435#581435
http://community.jboss.org/message/581435#581435? "
The problem is with this line:
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("org.jbpm.task");
Is there anything wrong with the path of this jar?
3) where to You'll have to update your eclipse to the latest Drools snapshot plugin?
I appreciate your help so much!
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3:32 a.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
Kris Verlaenen [http://community.jboss.org/people/KrisVerlaenen] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/588597#588597
--------------------------------------------------------------
The first error is simply because you are using a H2 database but the h2 jar is not in
your classpath. You should make sure the database driver jar is part of your classpath.
(Updating the slf4j seems to have caused another issue so that the first issue doesn't
show up yet, probably because you need to update all slf4j dependencies to the new version
if you update one).
The Drools build system builds an eclipse artefact that is a local update site. So you
can always download that and use it to install the latest snapshot version. But I suggest
you download the latest Drools 5.2.M1 release, that works fine with jBPM 5.0.0.
http://www.jboss.org/drools/downloads http://www.jboss.org/drools/downloads
Kris
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4:18 a.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
candy_633 [http://community.jboss.org/people/candy_633] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/589392#589392
--------------------------------------------------------------
Hello, Kris,
I am not sure how to use latest Drools 5.2.M1 release to make a working configuration, so
I download an reinstall the latest snapshot version. But the same problem exist.
Besides, as you remind, I copy *h2.jar* from \jbpm-installer\db\driver to
\jbpm-installer\runtime\lib, ( changing classpath, are you meaning this?)
The error message is:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder
http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Server started ...
Exception in thread "Thread-4" java.lang.RuntimeException: Server Exception with
class class org.jbpm.task.service.mina.MinaTaskServer using port 9123
at org.jbpm.task.service.mina.BaseMinaTaskServer.run(BaseMinaTaskServer.java:53)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind(Native Method)
at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
at
org.apache.mina.transport.socket.nio.NioSocketAcceptor.open(NioSocketAcceptor.java:251)
at
org.apache.mina.transport.socket.nio.NioSocketAcceptor.open(NioSocketAcceptor.java:48)
at
org.apache.mina.core.polling.AbstractPollingIoAcceptor.registerHandles(AbstractPollingIoAcceptor.java:523)
at
org.apache.mina.core.polling.AbstractPollingIoAcceptor.access$200(AbstractPollingIoAcceptor.java:65)
at
org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.run(AbstractPollingIoAcceptor.java:407)
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
... 1 more
Registered human task listener
[2011:02:54 22:02:875:debug] Message receieved on client : AddTaskResponse
[2011:02:54 22:02:875:debug] Arguments : [javax.persistence.RollbackException: Error while
commiting the transaction]
The following is my project:
http://community.jboss.org/servlet/JiveServlet/showImage/2-589392-11476/1...
http://community.jboss.org/servlet/JiveServlet/downloadImage/2-589392-114...
I tried a lot of ways, but still not work. Hope that you can offer me some help!
I appreciate your help so much!
Best Regards,
Candy
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4:31 a.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
bpmn2user [http://community.jboss.org/people/bpmn2user] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/589394#589394
--------------------------------------------------------------
It looks like you have another instance of MinaTaskServer running and you might want to
shutdown the other one.
+org.jbpm.task.service.mina.MinaTaskServer using port 9123+
+ at org.jbpm.task.service.mina.BaseMinaTaskServer.run(BaseMinaTaskServer.java:53)+
+ at java.lang.Thread.run(Unknown Source)+
*+Caused by: java.net.BindException: Address already in use: bind+*
*+ at sun.nio.ch.Net.bind(Native Method)+*
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5:31 p.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
candy_633 [http://community.jboss.org/people/candy_633] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/589571#589571
--------------------------------------------------------------
Hello, bpmn2user,
Thank you so much for your remind. I close another human tasks initialized in scripts. And
then the error message is like this:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder
http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Server started ...
Registered human task listener
[2011:02:55 11:02:171:debug] Message receieved on server : RegisterForEventRequest
[2011:02:55 11:02:171:debug] Arguments : [org.jbpm.task.event.TaskEventKey@12d0a744,
false, org.drools.process.workitem.wsht.WSHumanTaskHandler]
[2011:02:55 11:02:171:debug] Message receieved on server : RegisterForEventRequest
[2011:02:55 11:02:171:debug] Arguments : [org.jbpm.task.event.TaskEventKey@80e237a, false,
org.drools.process.workitem.wsht.WSHumanTaskHandler]
[2011:02:55 11:02:171:debug] Message receieved on server : RegisterForEventRequest
[2011:02:55 11:02:171:debug] Arguments : [org.jbpm.task.event.TaskEventKey@254ae884,
false, org.drools.process.workitem.wsht.WSHumanTaskHandler]
[2011:02:55 11:02:171:debug] Message receieved on server : AddTaskRequest
[2011:02:55 11:02:171:debug] Arguments : [org.jbpm.task.Task@836d3d75,
org.jbpm.task.service.ContentData@7bd46a]
[2011:02:55 11:02:234:debug] Message receieved on client : AddTaskResponse
[2011:02:55 11:02:234:debug] Arguments : [1]
It seems that the original problem is still there. How did u solve the JAR classpath or
plug-in version problem before? Do you have human-task project working correctly?
I appreicate your help so much!
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7:28 a.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
Kris Verlaenen [http://community.jboss.org/people/KrisVerlaenen] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/590222#590222
--------------------------------------------------------------
Based on that output, your task service seems to be working correctly. If you're
worried about that SLF4J warning, that is just a warning where it cannot find a specific
configuration so defaults to logging to the console, you can safely ignore that.
Kris
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7:35 p.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
candy_633 [http://community.jboss.org/people/candy_633] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/590713#590713
--------------------------------------------------------------
Hello, Kris and bpmn2user,
I appreciate your help so much! Finally got human task view works.
By the way, if I want to write some parameters from web console, and those parameters will
be input to my node(Service Task) of JBPM. Do I need use human task or something else?
Best Regards,
Shanshan
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1:09 a.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
bpmn2user [http://community.jboss.org/people/bpmn2user] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/589875#589875
--------------------------------------------------------------
I do not have this issue any more with the latest jBPM5 install (
http://kverlaen.blogspot.com/2011/01/jbpm-50-released.html
http://kverlaen.blogspot.com/2011/01/jbpm-50-released.html). This install downloads all
the dependant libraries.
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5:01 p.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
bpmn2user [http://community.jboss.org/people/bpmn2user] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/589915#589915
--------------------------------------------------------------
Here are the main steps involved in configuring Eclipse plugin. Follow these steps and let
us know if you still have problems
http://community.jboss.org/people/bpmn2user/blog/2011/02/27/eclipse-plug-...
http://community.jboss.org/people/bpmn2user/blog/2011/02/27/eclipse-plug-...
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10:07 p.m.
New subject: [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View
bpmn2user [http://community.jboss.org/people/bpmn2user] created the discussion
"Re: Eclipse -jBPM5/CR1 - Human Task View"
To view the discussion, visit: http://community.jboss.org/message/589927#589927
--------------------------------------------------------------
Here is a simple 'HelloPorcess' example using JBPM5 plugin:
http://community.jboss.org/people/bpmn2user/blog/2011/02/27/helloprocess-...
http://community.jboss.org/people/bpmn2user/blog/2011/02/27/helloprocess-...
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