Michael Cayanan created OODT-549:
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Summary: Exception is thrown when trying to retrieve the Workflow
Instances
Key: OODT-549
URL: https://issues.apache.org/jira/browse/OODT-549
Project: OODT
Issue Type: Bug
Components: workflow manager
Affects Versions: 0.5
Reporter: Michael Cayanan
An exception is thrown when calling the 'getWorkflowInsts' command through the
Workflow Manager Client:
{code}
% ./wmgr-client -u http://localhost:9001 -op -winsts
org.apache.xmlrpc.XmlRpcException: java.lang.Exception:
org.apache.oodt.cas.workflow.structs.exceptions.EngineException: Exception
getting workflow instances from workflow engine: Message: null
at
org.apache.xmlrpc.XmlRpcClientResponseProcessor.decodeException(XmlRpcClientResponseProcessor.java:104)
at
org.apache.xmlrpc.XmlRpcClientResponseProcessor.decodeResponse(XmlRpcClientResponseProcessor.java:71)
at org.apache.xmlrpc.XmlRpcClientWorker.execute(XmlRpcClientWorker.java:73)
at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:194)
at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:185)
at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:178)
at
org.apache.oodt.cas.workflow.system.XmlRpcWorkflowManagerClient.getWorkflowInstances(XmlRpcWorkflowManagerClient.java:653)
at
org.apache.oodt.cas.workflow.cli.action.GetWorkflowInstsCliAction.execute(GetWorkflowInstsCliAction.java:42)
at org.apache.oodt.cas.cli.CmdLineUtility.execute(CmdLineUtility.java:331)
at org.apache.oodt.cas.cli.CmdLineUtility.run(CmdLineUtility.java:187)
at
org.apache.oodt.cas.workflow.system.XmlRpcWorkflowManagerClient.main(XmlRpcWorkflowManagerClient.java:678)
ERROR: Failed to get workflow instances from URL 'http://localhost:9001' :
java.lang.Exception:
org.apache.oodt.cas.workflow.structs.exceptions.EngineException: Exception
getting workflow instances from workflow engine: Message: null
{code}
In the Workflow log, it shows the following exception:
{code}
Dec 20, 2012 4:26:52 PM
org.apache.oodt.cas.workflow.system.XmlRpcWorkflowManager getWorkflowInstances
INFO: Getting workflow instances: retrieved: 10 instances
java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:394)
at
org.apache.oodt.cas.workflow.util.XmlRpcStructFactory.getXmlRpcWorkflow(XmlRpcStructFactory.java:227)
at
org.apache.oodt.cas.workflow.util.XmlRpcStructFactory.getXmlRpcWorkflowInstance(XmlRpcStructFactory.java:114)
at
org.apache.oodt.cas.workflow.system.XmlRpcWorkflowManager.getWorkflowInstances(XmlRpcWorkflowManager.java:448)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.xmlrpc.Invoker.execute(Invoker.java:130)
at org.apache.xmlrpc.XmlRpcWorker.invokeHandler(XmlRpcWorker.java:84)
at org.apache.xmlrpc.XmlRpcWorker.execute(XmlRpcWorker.java:146)
at org.apache.xmlrpc.XmlRpcServer.execute(XmlRpcServer.java:139)
at org.apache.xmlrpc.XmlRpcServer.execute(XmlRpcServer.java:125)
at org.apache.xmlrpc.WebServer$Connection.run(WebServer.java:761)
at org.apache.xmlrpc.WebServer$Runner.run(WebServer.java:642)
at java.lang.Thread.run(Thread.java:680)
{code}
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