Different ways of starting external java activity agent?

Hi All,
Can any one tell me different of ways of starting Oracle Workflow 2.6.4.0.0 JAVA Function Activity Agent in Solaris .
The one option i know is using shell script wfjvlsnr.csh.This option requires connection string to be given.
But according to the user of my application ,im allowed to use only datasource to get the workflow database connection.
Can any one please let me whether there is option to run java activity listner using Workflow database as datasource.
Thanks in advance.
Cheers,
Cherry

Can any one pls help me out...plsssssss
Cheers,
Sharath

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Oracle Workflow Java Activity Agent not starting up

Hi,
I am trying to start the Java Activity agent of Oracle workflow.
As specified in the installation and setup guid I am running the following script (for NT):
wfjvlsnr user/password@connectString
The activiy agent does start up but then I get a NullPointerException in the main thread of the Java Activity Agent class.
Appreciate you help.
thanks.
Here is the dump.
E:\Ora9idb\wf\admin>rem ******************************************************
E:\Ora9idb\wf\admin>rem $Header: wfjvlsnr.bat 26.5 2001/07/02 09:13:06 smayze
ship $
E:\Ora9idb\wf\admin>rem USAGE:
E:\Ora9idb\wf\admin>rem 1) Workflow Schema User/Password@Database
E:\Ora9idb\wf\admin>rem 2> "Workflow Schema User Password Database [protocol
[charset]
E:\Ora9idb\wf\admin>rem To disable output, use the jrew command instead of jre
E:\Ora9idb\wf\admin>rem ******************************************************
E:\Ora9idb\wf\admin>set WF_UN=workflow/workflow@workflow
E:\Ora9idb\wf\admin>set WF_CHARSET=
E:\Ora9idb\wf\admin>IF "" NEQ "" set WF_CHARSET=-DCHARSET=
E:\Ora9idb\wf\admin>set WF_CLASSPATH=;e:\Ora9idb\wf\java;C:\PROGRA~1\Oracle\jr
1.1.8\lib\rt.jar;e:\Ora9idb\wf\java;e:\Ora9idb\jlib\wfjava.jar;e:\Ora9idb\wf\x
\java\lib\xmlparserv2.jar;e:\Ora9idb\jlib\wfapi.jar;e:\Ora9idb\jdbc\lib\classe
11.zip;e:\Ora9idb\jlib\share.jar;e:\Ora9idb\jlib\ewt3.jar;e:\Ora9idb\jlib\ewt3
ls.jar;e:\Ora9idb\jlib\swingall-1_1_1.jar;
E:\Ora9idb\wf\admin>"C:\PROGRA~1\Oracle\jre\1.1.8\bin\jre" -classpath ";e:\Ora
db\wf\java;C:\PROGRA~1\Oracle\jre\1.1.8\lib\rt.jar;e:\Ora9idb\wf\java;e:\Ora9i
\jlib\wfjava.jar;e:\Ora9idb\wf\xml\java\lib\xmlparserv2.jar;e:\Ora9idb\jlib\wf
i.jar;e:\Ora9idb\jdbc\lib\classes111.zip;e:\Ora9idb\jlib\share.jar;e:\Ora9idb\
ib\ewt3.jar;e:\Ora9idb\jlib\ewt3-nls.jar;e:\Ora9idb\jlib\swingall-1_1_1.jar;"
nojit oracle.apps.fnd.wf.WFFALsnr workflow/workflow@workflow
Oracle Workflow 2.6.0 JAVA Function Activity Agent
Connected to workflow@workflow with character set UTF8
Listening...
Wed Aug 28 12:14:11 GMT+05:30 2002 Executing TEST_REQ/9996 test.SelectApprover
PUT APPROVER_NAME=CDOUGLAS
Wed Aug 28 12:14:11 GMT+05:30 2002 Enqueuing TEST_REQ/9996 test.SelectApprover
Wed Aug 28 12:14:11 GMT+05:30 2002 Executing TEST_REQ/9997 test.SelectApprover
PUT APPROVER_NAME=CDOUGLAS
Wed Aug 28 12:14:11 GMT+05:30 2002 Enqueuing TEST_REQ/9997 test.SelectApprover
Wed Aug 28 12:14:11 GMT+05:30 2002 Executing TEST_REQ/9998 test.SelectApprover
PUT APPROVER_NAME=CDOUGLAS
Wed Aug 28 12:14:11 GMT+05:30 2002 Enqueuing TEST_REQ/9998 test.SelectApprover
Wed Aug 28 12:14:11 GMT+05:30 2002 Executing TEST_REQ/9999 test.SelectApprover
PUT APPROVER_NAME=CDOUGLAS
Wed Aug 28 12:14:11 GMT+05:30 2002 Enqueuing TEST_REQ/9999 test.SelectApprover
Wed Aug 28 12:14:11 GMT+05:30 2002 Executing TEST_REQ/99910 test.SelectApprove
PUT APPROVER_NAME=CDOUGLAS
Wed Aug 28 12:14:12 GMT+05:30 2002 Enqueuing TEST_REQ/99910 test.SelectApprove
T
Wed Aug 28 12:14:12 GMT+05:30 2002 Executing WFEVDEME/PO3435 oracle.apps.fnd.w
XMLGetTagValue
GET ATTR=REQUESTOR
GET EVENT=EVENTMESSAGE
GET TAG=/ORDER/REQUESTOR
PUT REQUESTOR=BLEWIS
Wed Aug 28 12:14:12 GMT+05:30 2002 Enqueuing WFEVDEME/PO3435 oracle.apps.fnd.w
XMLGetTagValue
Wed Aug 28 12:14:12 GMT+05:30 2002 Executing TEAC_IT1/SYSADMIN JayTestFunction
PUT TEST_RESULT=JAVA
Wed Aug 28 12:14:12 GMT+05:30 2002 Enqueuing TEAC_IT1/SYSADMIN JayTestFunction
Wed Aug 28 12:14:12 GMT+05:30 2002 Executing TEST_REQ/9996 test.ApproveRequisi
on
PUT TEST_ATTRIBUTE=This value was set in the Approve Requisition Activity
Wed Aug 28 12:14:12 GMT+05:30 2002 Enqueuing TEST_REQ/9996 test.ApproveRequisi
on
Exception in thread "main" java.lang.NullPointerException:
at oracle.apps.fnd.wf.WFFALsnr.listen(WFFALsnr.java)
at oracle.apps.fnd.wf.WFFALsnr.main(WFFALsnr.java)
E:\Ora9idb\wf\admin>

Hi,
I tried to run the same without entering password,but still i am getting error.
The error description is:
Oracle Workflow 2.6.3 JAVA Function Activity Agent
Please Enter Database Password :
ORA-06401: NETCMN: invalid driver designator
Unable to connect to nn0734.nucleussoftware.com:1521:asdb
Accepted arguments:
java <program> <user> <conStr> [oci8]
java <program> <user> <conStr> thin
Where <conStr> is in the form of <host>:<port>:<sid> for thin
and DB Service name for oci8
Please Help. Is there any problem with my tnsnames.ora or something else.
Thanx in advance,
Sarab

Unable to run External Java activity getting Null pointerException

Hi All,
Im unable to run external java activity in my workflow on Solaris environment.
My workflow looks like:
start -----> External java activity----> end
External java activity code :
exceute(WFContext ctx) {
System.out.print("im in java activity");//Only this stmt is present in my code
1) I have set the classpath in the environment variables pointing all the workflow jars.
2) Executed wfjvlsnr.csh and it displays the following.
Oracle Workflow 2.6.4.0.0 JAVA Function Activity Agent
Please Enter Database Password : r4v25zx
Connected to owf_mgr@wfSystem:1667:WFUser with character set UTF8
Listening...
Till here it is fine.workflow agent started listening
3) Now i started my client program which triggers the workflow and reaches java activity.
4) Now when i verify console (2) where i run the java activity agent it displays the following errors:
oradev_WFUser> ./wfjvlsnr.csh
Oracle Workflow 2.6.4.0.0 JAVA Function Activity Agent
Please Enter Database Password : owfpswd
Connected to owf_mgr@wfSystem:1667:WFUser with character set UTF8
Listening...
Sat Jun 02 12:18:47 EST 2007 Executing EXTERNAL/002 oracle.apps.fnd.wf.internal
java.lang.NullPointerException
null
Sat Jun 02 12:18:47 EST 2007 Enqueuing EXTERNAL/002 oracle.apps.fnd.wf.internal null
Error executing class oracle.apps.fnd.wf.internal: null
Sat Jun 02 12:18:47 EST 2007 Executing EXTERNAL/002 oracle.apps.fnd.wf.internal
java.lang.NullPointerException
null
Sat Jun 02 12:18:47 EST 2007 Enqueuing EXTERNAL/002 oracle.apps.fnd.wf.internal null
Error executing class oracle.apps.fnd.wf.internal: null
Though i dont have any code in my java activity it says NULL pointer exception.
Im unable find where the mistake is.
Please help me out in running my java activity.
Thanks in Advance,
Cheers,
Sharath

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Problem calling a EJB Java Client from Java Activity Agent

Hi,
We have a wrapper java class that calls to an EJB through a JNDI lookup. The wrapper class is called from a workflow. The problem is that the call fail with the following message error:
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tlaford,
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Hi all,
Is there any other way to start workflow java listener apart from this procedure,
type'n the following command :
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Regards,
P.Kalyan

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Hi,
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I hav modified WF_CLASSPATH of wfjavlsnr.bat script to include classes12.jar, ojdbc14.jar & my custom jar files.
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Hi,
I tried to run the same without entering password,but still i am getting error.
The error description is:
Oracle Workflow 2.6.3 JAVA Function Activity Agent
Please Enter Database Password :
ORA-06401: NETCMN: invalid driver designator
Unable to connect to nn0734.nucleussoftware.com:1521:asdb
Accepted arguments:
java <program> <user> <conStr> [oci8]
java <program> <user> <conStr> thin
Where <conStr> is in the form of <host>:<port>:<sid> for thin
and DB Service name for oci8
Please Help. Is there any problem with my tnsnames.ora or something else.
Thanx in advance,
Sarab

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I want to be able to start a Java agent in the current JVM. I cannot control how the JVM is started, therefore I cannot specify -javaagent on the java command.
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Edited slightly for clarity by: tjquinn on Jan 23, 2008 4:26 PM

Thanks a lot for the pointers, Alan.
The real underlying difficulty I didn't mention earlier is that Java Web Start is launching the applications of interest here. The JNLP spec currently provides no way of indicating an agent in the JNLP document, the -javaagent command line option is not one of the ones that Java Web Start chooses to handle (for the obvious security reasons I presume), and JNLP provides no mechanism for defining environment variables. So perhaps this is a lost cause until the JNLP spec and/or the Java Web Start implementation evolve.
(There is a bug from years ago filed against Java Web Start asking for the equivalent of the -javaagent feature.)
My questions in this thread reflect my (unsuccessful) attempts at side-stepping those Java Web Start restrictions.
It does seem to me that the management enhancements over the past several Java SE versions have done a nice job of allowing different JVMs to manage and monitor each other. The special case of a JVM managing or monitoring itself is not so easy. In my particular case I don't really need the ability to attach to a different JVM. If I could just get the VirtualMachine instance for the current JVM (without needing tools.jar) I'd be done and on my way.
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- Tim

Different ways of starting external java activity agent?

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