Finding tasks via the Java API
I am using Oracle BPEL Process Manager 10.1.2 (Beta3) with a java client. I am simply trying to list tasks assigned to an individual using the following code:
package com.gw.apps.bpel;
import com.oracle.bpel.client.Locator;
import com.oracle.bpel.client.NormalizedMessage;
import com.oracle.bpel.client.dispatch.IDeliveryService;
import com.oracle.services.bpel.task.DefaultTasklet;
import com.oracle.services.bpel.task.ITask;
import com.oracle.services.bpel.task.IWorklistService;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class ShowTasks
public ShowTasks()
public void showTasks()
try {
java.util.Hashtable props = new Hashtable();
props.put("orabpel.platform","oc4j_10g");
props.put("java.naming.factory.initial","com.evermind.server.rmi.RMIInitialContextFactory");
props.put("java.naming.provider.url","ormi://localhost/orabpel");
props.put("java.naming.security.principal","admin");
props.put("java.naming.security.credentials","welcome");
props.put("dedicated.rmicontext", "true");
Locator loc = new Locator("default","bpel","127.0.0.1",props);
IWorklistService taskService = (IWorklistService)loc.lookupService(IWorklistService.SERVICE_NAME);
System.out.println("Finding Tasks....");
ITask[] tasks = taskService.listTasksByAssignee("[email protected]");
catch (Exception e)
System.out.println(e.getMessage());
* @param args
public static void main(String[] args)
ShowTasks showTasks = new ShowTasks();
showTasks.showTasks();
When I run the code I am getting the error:
Error deserializing return-value: java.io.InvalidClassException: org.collaxa.thirdparty.dom4j.tree.AbstractNode; local class incompatible: stream classdesc serialVersionUID = 2188750142857195041, local class serialVersionUID = -2607565468107109475
I believe that I have all the correct libraries set up in JDeveloper. Can anybody please point me in the right direction?
Yes - here are the import statements.
package com.gw.apps.bpel;
import com.oracle.bpel.client.Locator;
import com.oracle.bpel.client.NormalizedMessage;
//import com.oracle.bpel.client.dispatch.IDeliveryService;
import com.oracle.bpel.client.delivery.IDeliveryService;
import com.oracle.bpel.client.util.WhereCondition;
import com.oracle.services.bpel.task.DefaultTasklet;
import com.oracle.services.bpel.task.ITask;
import com.oracle.services.bpel.task.IWorklistService;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
Just to expand, I am developing using JDeveloper10g version 9.0.5.2 and running the code from here.
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}Message was edited by:
MidnightJava
Message was edited by:
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at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request)
at Microsoft.UpdateServices.Internal.DatabaseAccess.ApiRemotingCompressionProxy.GetWebResponse(WebRequest webRequest)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Microsoft.UpdateServices.Internal.ApiRemoting.ExecuteSPSearchUpdates(String updateScopeXml, String preferredCulture, Int32 publicationState)
at Microsoft.UpdateServices.Internal.DatabaseAccess.AdminDataAccessProxy.ExecuteSPSearchUpdates(String updateScopeXml, String preferredCulture, ExtendedPublicationState publicationState)
at Microsoft.UpdateServices.Internal.BaseApi.Update.SearchUpdates(UpdateScope searchScope, ExtendedPublicationState publicationState, UpdateServer updateServer)
at Microsoft.UpdateServices.Internal.BaseApi.UpdateServer.GetUpdates(UpdateScope searchScope)
at Microsoft.UpdateServices.UI.AdminApiAccess.UpdateManager.GetUpdates(ExtendedUpdateScope filter)
at Microsoft.UpdateServices.UI.AdminApiAccess.BulkUpdatePropertiesCache.GetAndCacheUpdates(ExtendedUpdateScope updateScope, ComputerTargetScope computerTargetScope)
at Microsoft.UpdateServices.UI.SnapIn.Pages.UpdatesListPage.GetListRows()
I Have tried desabling the firewall,disabling the antivirus protection. Tried by changing the default rule Please Help.Hi Sagar,
First, please check if the RAM is exhausted. When there is not enough RAM, this issue may occurs.
Please try to run iisreset on the WSUS server, then try to reconnect.
Also, please try to run the server cleanup wizard to remove the unused update.
Best Regards.
Steven Lee Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected] -
Hi everyone,
I just wanted to see if anyone knows whether I need a license to use the Java API included in the trial version of Adobe LiveCycle ES.
I need to include some PDF manipulation code for dynamic XFA forms in an application, and I first read that XPAAJ jar was free. So is the API here also free or do I need a license? If anyone knows, could you please point me in the direction of the details if a license is needed.
I would appreciate your help.
Thanks.
Mira.Mira
You don't need a license as long as the application you're building is for evaluation or testing, and NOT for production use.
You will need to purchase a license for production use.
Licensing can be complex, and you should contact your local Adobe office or enterprise partner for details.
XPAAJ was never free, it was bundled with other Adobe products.
It has been deprecated, and is no longer supplied or supported, as far as I'm aware. You will need to purchase a LiveCycle license of some sort.
Howard
http://www.avoka.com -
Using the Java API to address a specific instance
Hi,
I've created another operation (onRequest) in the client of an async. process.
<!-- portType implemented by the Exp2 BPEL process -->
<portType name="Exp2">
<operation name="initiate">
<input message="tns:Exp2RequestMessage"/>
</operation>
<operation name="onRequest">
<input message="tns:Exp2onRequestMessage"/>
</operation>
</portType>
I then use this operation in a recieve activity so that I can stall the flow of the instance, and then call it whenever I whant from a RMI client.
<receive createInstance="no" name="onRequest" partnerLink="client" portType="tns:Exp2" operation="onRequest" variable="inputRequest"/>
My problem is that, after the creation of one or more instances of this process, how can I send a post message to a specific instance using the Java API?
I understand that i should use something like...
deliveryService.post("Exp2", "onRequest", nm );
but there's nothing to "say" that this post message is to be delivered to the instance with the ID "xx".
I also know that I need to use correlation on this but I don't know how.
I would really apreciate some help on this.
Thanks...This is a very good question: here is a code snippet that shows how you can add a conversation id to the NormalizedMessage that you are sending to the delivery service.
HashMap properties = new HashMap();
properties.put("conversationId", "yourUniqueKeyHere");
// construct the normalized message and send to the
// delivery service
NormalizedMessage nm = new NormalizedMessage( );
nm.setProperties(properties );
// The rest is the same
nm.addPart("XXX" , someElement );
Please note that you will need to use the conversationId property both with the message you use to initiate the BPEL process and the message you use to perform the onRequest call.
Please note that if at some point you want to perform any of the 2 calls through the SOAP channel, you can embed he conversationId in the WS-Addressing header within the relateTo element.
I hope this helps.
Edwin
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