Hermes JMS

Hi Group,
When I am trying to configure HeremesJMS for PI 7.1 I am getting the below error:
javax.jms.JMSException: Could not create InitialContext: Exception while trying to get InitialContext.
     at hermes.JNDIContextFactory.createContext(JNDIContextFactory.java:282)
     at hermes.browser.components.ContextTreeModelFactory.create(ContextTreeModelFactory.java:58)
     at hermes.browser.tasks.JNDIBrowseTask.invoke(JNDIBrowseTask.java:59)
     at hermes.browser.tasks.TaskSupport.run(TaskSupport.java:175)
     at hermes.browser.tasks.ThreadPool.run(ThreadPool.java:170)
     at java.lang.Thread.run(Unknown Source)
Can any body help me.
I am using the following below parameters in the context:
initialContextFactory : com.sap.engine.services.jndi.InitialContextFactoryImp
providerURL             : localhost:50010
loader                       : SAPHE
Regards,
Rajiv

Rajiv,
Is this the error you are facing.
javax.jms.JMSException: Could not create InitialContext: Exception while trying to get InitialContext.
If so give the port as 50004 and try...
Regards,
Veerendra

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Check out Hermes JMS Explorer (http://hermesjms.sourceforge.net) - it can do just about all you can do without actually using server libraries and hooking into preexisting JMS server code.
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Hi Guys,
Scenario: BEA Weblogic -
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[/people/robert.warde3/blog/2009/03/18/pi-basics-generic-message-interface|/people/robert.warde3/blog/2009/03/18/pi-basics-generic-message-interface]
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Thank you for suggesting MQ Explorer and MQ J Explorer, we'll load it up and try it.
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Messages posted to JMS Topic from OSB disappear even when not subscribed

Hi,
We are using an OSB service to publish xml messages to a weblogic JMS Topic. Message is persistent. There are no consumers for the Topic. There is no expiration limit set.
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The State of the message shows up as "send transaction" on the Topic in the weblogic console. And it shows up as Message Pending instead of Message Current.
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Hi Senthil,
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Edited by: Patrick Taylor on May 13, 2011 2:40 PM

JMS Message 'State String' values

Hi,
We have a java application to monitor and process messages in a set of JMS queues.
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Our code uses the JMX call getMessage on the Queue. We are using Weblogic 10.3

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How to start with JMS?

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I am new to JMS, i know about java basic stuff....
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I have J2SDK 1.4.2_03,
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I was in your situation a few months ago and chose OpenJMS
http://openjms.sourceforge.net
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How to send message to a queue using JMS adapter

Hi,
I need to send messages to the default queue(demoQueue) available in the server using a JMS adapter in a BPEL process.
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I am also using Hermes v1.0 to monitor the queue but it says that it dint receive any messages in the queue to read.
I am sorry that i have restrictions from the client that i can't post the code here. Please let me know if anyone has got any solution or if you know any other way of doing the same.
Thank you
Message was edited by: prince
the_prince

You can use the following procedure :
DBMS_AQ.ENQUEUE (
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enqueue_options IN enqueue_options_t,
message_properties IN message_properties_t,
payload IN "<ADT_1>",
msgid OUT RAW);

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In a cluster environment, the JMS Topics/Queues such as ESB_JAVA_DEFERRED are database-persisted.
Using HermesJMS I am unable to discover or browse these.
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I run into some nullpointer exception when looking up the resource provider.
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View JMS messages wls 10.3

Hello
I m trying to view/delete jms messages in a queue in WLS 10.3. As Administrator user I m able to view/delete the messages but when logged as an user of Monitors group I m not even able to view the messages.
Is there any other user group apart from Administrator which can view messages in WLS 10.3. Please help
Thanks
Kranthi

Tom,
You are correct, I m able to view messages as Monitors group ID even from Hermes.
To check from console I had to update the weblogic.management.runtime.JMSDestinationRuntimeMBean security.
Here the steps I got from support to enable operations on JMSDestinationruntime mbean:
1.     In the left pane, select Security Realm.
2.     Select “myrealm”.
3.     In “Configuration” tab, check “Use Authorization Providers to Protect JMX Access”, click save and then activate changes.
4.     Restart the server.
5.     In the left pane, select Security Realm.
6.     Select “myrealm”.
7.     Go to “Users and Groups”.
8.     In users, create a new user say “queueuser”, add it to group “Monitors”
9.     Adding it to group “Monitors”:
a.     Select “myrealm”.
b.     Select “Users and Groups”.
c.     Click on user name, in right pane select “Groups”.
d.     From Parent Groups, select monitors, click arrow pointing right side.
10.     Go to “Roles and Policies” - > Realm Policies
11.     In Policy table, select “JMX Policy Editor”.
12.     Select “Global Scope”, click next.
13.     From MBean Types, select “weblogic.management.runtime”
14.     Select “JMSDestinationRuntimeMBean”, click next.
15.     In Attributes and Operations, select “Operations: Permission to Invoke”.
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Example using of getMessage(s) with JMS error queues?

Hi,
I'm cobbling together various tools for easier management of replaying messages left in error queues and the likes, and whilst I've got messages being moved around the place on demand, I can't make any progress using getMessage() and getMessages() to print out vital statistics of a message / all the messages in a queue, including hopefully ripping out excerts of the XML payload in them. Can someone provide / point me to an example of these being in use? I can get a successful execution of getMessages() but am usure what to really do next with the object returned, how to iterate through and such.
Thanks
Chris.

Hi Chris,
There are open source solutions for message management. In particular, you might want to investigate Hermes:
http://blogs.oracle.com/jamesbayer/2008/01/hermes_jms_open_source_jms_con.html
As for browsing messages via getMessages(), here's a code snippet. Note that one should never attempt to get too many messages at a time via "getNext()" -- instead call getNext() multiple times. Otherwise, if there are too many messages, the client or server might run out of memory.
# create a cursor to get all the messages in the queue
# by passing ‘true’ for selector expression,
# and long value for cursor timeout
cursor1=cmo.getMessages(‘true’,9999999)
# get the next 5 messages starting from the cursor’s
# current end position
# this will adjust the cursor’s current start position and
# end position “forwards” by 5
msgs = cmo.getNext(cursor1, 5)
# print all the messages’ contents
print msgs
# get 3 messages upto the cursor’s current start position
# this will adjust the cursor’s current start and end position backwards by 3
# this will the current position of the message by 1
msgs = cmo.getPrevious(cursor1, 3)
# print all the messages’ contents
print msgs
Finally, here's code based on public APIs that can help with exporting messages to a file.   It uses Java, not WLST. I haven't tested it personally. I'm not sure if there's away to do this in WLST.
* pseudo code for JMS Message Export operation based on
* current implementation in the Administration Console
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.io.BufferedWriter;
import java.io.Writer;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import weblogic.apache.xerces.dom.DocumentImpl;
import weblogic.apache.xml.serialize.OutputFormat;
import weblogic.apache.xml.serialize.XMLSerializer;
import weblogic.management.runtime.JMSDestinationRuntimeMBean;
import weblogic.management.runtime.JMSDurableSubscriberRuntimeMBean;
import weblogic.management.runtime.JMSMessageManagementRuntimeMBean;
import javax.management.openmbean.CompositeData;
import weblogic.jms.extensions.JMSMessageInfo;
import weblogic.jms.extensions.WLMessage;
import weblogic.messaging.kernel.Cursor;
public void exportMessages(
    String fileName,
    JMSDestinationRuntimeMBean destination,
    /* or JMSDurableSubscriberRuntimeMBean durableSubscriber */,
    String messageSelector) throws Exception {
    BufferedWriter bw = null;
    try {
      File selectedFile = new File(file);
      if (destination == null /* or durableSubscriber == null */) {
        throw new IllegalArgumentException("A valid destination runtime or durableSubscriber runtime mbean must be specified");
      JMSMessageManagementRuntimeMBean runtime = (JMSMessageManagementRuntimeMBean) destination /* durableSubscriber */;
      bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file),"UTF-8"));
      String xmlDeclaration = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>";
      String exportStart = "<JMSMessageExport>";
      final String exportEnd = "</JMSMessageExport>";
      final String indent = "    ";
      bw.write(xmlDeclaration);
      bw.newLine();
      bw.write(exportStart);
      bw.newLine();
      bw.newLine();
      bw.write(indent);
      CompositeData[] messageInfos = null;
      OutputFormat of = new OutputFormat();
      of.setIndenting(true);
      of.setLineSeparator("\n"+indent);
      of.setOmitXMLDeclaration(true);
      XMLSerializer ser = getXMLSerializer(bw, of);
      String cursor = JMSUtils.getJMSMessageCursor(runtime, selector,0);
      while ((messageInfos = runtime.getNext(cursor,new Integer(20))) != null) {
        for (int i = 0; i < messageInfos.length; i++) {
          JMSMessageInfo mhi = new JMSMessageInfo(messageInfos);
Long mhiHandle = mhi.getHandle();
CompositeData m = runtime.getMessage(cursor, mhiHandle);
// need to get the message with body
JMSMessageInfo mbi = new JMSMessageInfo(m);
WLMessage message = mbi.getMessage();
ser.serialize(message.getJMSMessageDocument());
messageInfos[i] = null;
bw.newLine();
bw.write(exportEnd);
bw.flush();
bw.close();
runtime.closeCursor(cursor);
LOG.success("jms exportmessage success");
} catch (Exception e) {
try {
if(bw != null)
bw.close();
} catch (IOException ioe) { }
LOG.error(e);
LOG.error("jms exportmessage error");
throw(e);
LOG.success("jms exportmessage success");
private XMLSerializer getXMLSerializer(
Writer writer,
OutputFormat of) {
return new XMLSerializer(writer, of) {
protected void printText(
char[] chars,
int start,
int length,
boolean preserveSpace,
boolean unescaped) throws IOException {
super.printText(chars,start,length,true,unescaped);
protected void printText(
String text,
boolean preserveSpace,
boolean unescaped ) throws IOException {
super.printText(text,true,unescaped);
public static String getJMSMessageCursor(
JMSMessageManagementRuntimeMBean runtime,
String selector,
int cursorTimeout) throws weblogic.management.ManagementException
return runtime.getMessages(
selector,
new Integer(cursorTimeout),
new Integer(Cursor.ALL));
Hope this helps,
Tom

WLS 12c JMS & HermesJMS

Has anyone been able to get HermesJMS working with WLS 12c?
I have followed the setup instructions on various blog posts and such and have basically done the following:
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3. Attempted to discover queues & topics on my WLS instance, and I get a stack trace.
java.lang.NoClassDefFoundError: weblogic/management/WebLogicObjectName
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     at hermes.impl.HermesAdminAdapter.getAdmin(HermesAdminAdapter.java:64)
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     at hermes.impl.DefaultHermesImpl.discoverDestinationConfigs(DefaultHermesImpl.java:1356)
     at hermes.browser.tasks.DiscoverDestinationsTask.invoke(DiscoverDestinationsTask.java:77)
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     at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
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     ... 8 more
I found some references to including "-Dsun.lang.ClassLoader.allowArraySyntax=true" in the options to Java, but that had no effect.
I am using HermesJMS 1.14, Oracle JDK (1.6.0_35), running on RHEL 5 x86_64.
Here is the classpath section from my hermes-config.xml:
<classpathGroup id="WLS12.1">
<library noFactories="true" jar="/home/wkorb/oracle/middleware/wlserver_12.1/server/lib/wlfullclient.jar"/>
</classpathGroup>
Here is the section that defines my session:
<factory classpathId="WLS12.1">
<provider className="hermes.JNDIConnectionFactory">
<properties>
<property name="initialContextFactory" value="weblogic.jndi.WLInitialContextFactory"/>
<property value="t3://localhost:7001" name="providerURL"/>
<property value="javax/jms/QueueConnectionFactory" name="binding"/>
<property value="weblogic" name="securityPrincipal"/>
<property value="weblogic" name="securityCredentials"/>
</properties>
</provider>
<connection connectionPerThread="false" clientID="">
<session useConsumerForQueueBrowse="false" audit="false" transacted="true" reconnects="0" id="wls12c"/>
</connection>
<extension className="hermes.ext.weblogic.WebLogicJMSAdminFactory">
<properties/>
</extension>
</factory>
Any insight or suggestions would be much appreciated.
Thanks,
Bill

For the "No destinations found" situation, I'm confused. In the WLS console I did the following:
1. Created a JMS server.
2. Created a JMS module.
3. Added to resources to the module: a QueueConnectionFactory & a Queue.
If I am indeed getting connected to the JMS service, should I not see those resources when I try to discover them?You may have missed a few steps during configuration that are required to make sure the Queue is active.
Assuming non-clustered WebLogic:
- The JMS Server target needs to be configured to specify a WL server.
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(Using a subdeployment for setting up the association between a Queue and its JMS Server(s) isn't strictly required but is a highly recommended best practice, per http://docs.oracle.com/cd/E24329_01/web.1211/e24385/best_practice.htm#JMSAD455)
To verify the queue is up, you should be able to see the queue on one of the console's monitoring screens, and you should also be able to write a simple thin-t3-jar JMS client that looks up the CF and Q in JNDI and sends a message. The console also provides "message management" screens that allow an admin to inject a test message and/or view messages...
HTH,
Tom

JMS Provider crash and All SAP Servers hang for a Lock

we have a problem with JMS Service and locks which hang all server.
This problem appears only when we activate a Dialog Instance. Starting
only one of the 4 dialog instance after 2 or 3 hours the portal hangs
and users are not able to logon or to access any KM resource.
The behavior is very strange because all java processes are up and
running and there is no CPUs usage.
After some attempts we discover that killing one dialog instance
process (we have to choose the right one) with the unix command "kill -
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the "watch dog" and all other processes start to work well.
It seems that the dialog instance creates a lock and all other
processes are blocked by this lock. Killing the process the lock is
removed and the other processes can continue to work.
We checked the database and sessions opened between application server
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When this hang occurs the Visual Admin tool is not able to connect to
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server connected to the SAP cluster.

Hi Anurag,
The only thing i have used the JDNI JMS queue for was for alerting. We have critical interfaces that are not allowed to have down time.
Created a component based alert. That causes an xml to be created in the queue. Then have a JMS channels that reads that queue and from there i send a soap message to our sms service providers.
Also use hermes to see if there are any messages stuck or waiting to be picked-up.
PI Alerting on AAE/AEX
The queue has not given me trouble at all. The interface is running perfectly.
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Regards,
Jannus Botha

What about JMS?

Hi,
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Thank you in advance!!
Juli�n Monroy de S�

I am by no means an expert on this, but I recently set up a email service using openJMS. It's for a low usage / non-commercial project so I installed it on the same box as Tomcat (as I said, low usage / non-commercial!)
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BTW - you know that Log4J can be configured to send messages to a JMS queue. May save your application developers some time.

Setting the JMS Header from Payload

Hi Experts,
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Converting the XML to string is possible in PI.But my question is converting the string XML data into XML fields is possible in SAP PI?If so how to do that?
Please provide your suggestion.
Regards,
Karthiga

Hi Karthiga,
The UDF is there in blog
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regards,
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