OC4J Hot Deployment/Extended deployment

Hi
Although this question has been asked over and over again, i couldn't find any real solution for my problem... so i'll ask again.
Context:
I've started recently using JDeveloper 10.1.2 and it's embedded OC4J server. I was previously working with Eclipse and Tomcat (with tomcat sysdeo plugin).
In my previous senario, the deployments where made in a directory structure (exploded, not packaged), allowing a more fast reload from the container (when i compiled a class tomcat would automatically reload its context... not always this would work properly, but, still, it mad development a whole lot easear).
Problem:
I'm not able to do the same in Jdev/OC4J. Every time i compile a knew class, i have to start the server all over again, witch is a really tedious task... (each start can take more then five minutes, many times only to realize that i had done something wrong and have to restart).
Question:
Can this go faster? Can OC4J make extended deployments? If so, will that mean that i don't have to generate the hole ear file each time a make some change in a class?
Or just, how do you develop in OC4J in a more productive away?
Thanks in advance
kim

Hello,
It is possible with OC4J to have the application automatically reloading the resources in development. It is documented in the deployment guide:
- Automatic Deployment
Regards
Tugdual Grall[url]

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OC4J hot deployment

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Have a look at Debu Panda's blog http://radio.weblogs.com/0135826/2004/05/17.html#a30
This is a really good source for information on OC4J related issues.

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I have a J2EE Application (App.ear), that often change. For every deploy I stop and start the app server (OC4J).
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(The application contain EJB, Servlet ecc.).
Thanks in advance, Veri.

Hello
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Regards
Tugdual Grall

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i am using JDeveloper , please any one help me out in hot deploying EJBs. what is the procedure if i want to hot deploy EJBS

1) You have to start OC4J with higher Java heap size e.g. java -Xms100m -Xmx150m -jar oc4j.jar
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hi
i have compiled the servlet in jdeveloper and set the path to oc4j../../web-inf/classes path;after compiling the class Is it neccassary to shutdown the oc4j container;
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          >
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Stateful session bean hot deployment error?

Hi,
i'm getting an exception ...
1. Deploy a stateful session bean.
2. Hit the server and create an instance, then remove it.
3. Change Stateful session bean source compile and hot deploy it.
4. Hit the server and try creating an instance...exception !!!!
"IllegalArgumentException: Object is not an instance of declaring class"
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Naveen

Hi Navin,
Firstly could you let me know , what option did you set in Jdeveloper to perform hot deploy ??
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We are a small development team (5-7 people) and have a need to develop collaboratively because each of us is working on small parts of a large application, and we have code dependencies upon eachother. We are looking for suggestions on how to develop collaboratively.
We have attempted to use 9iAS to develop on - but every time we change any class files, we have to restart the OC4J container for them to be recognized error free. JDeveloper is out of the question because our current PC's cannot handle it (PII ~ 350mhz, 256RAM) and we cannot get new PC's for another year. We have attempted to run a standalone instance of OC4J on the server, but that still requires restarting the instance anytime classes are changed.
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Semi-speculation on my part follows:
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          actually deployed. i.e moved but not available.
          -Brett
          "Josh Garcia" <[email protected]> wrote in message
          news:3e1deefc$[email protected]..
          >
          > As I understand, hot deployment should ONLY occur when server(s) are in
          development
          > mode. Are there any cases where hot deployment can occur even when
          servers are
          > in production mode?
          >
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Hot deployment and JMX

Hi,
I need to know how classes are loaded in hot deployment. my problem is that I'm using a JMX server that has some MBeans registered into it, but when I redeploy an application, and the JMX server is recreated as are the MBeans, the JMX agent clearly points to the old instances of the MBeans instead of the redployed ones. It seems that only restarting the OC4J would fix the pointers.
Is there any way to fix this? or do I have to restart the server every time I deploy an application?

What option are you using for deployment ? Are you choosing re-deploy ? We recommend Oracle9iAS install in a test/production environment when
the application has stabilized.
Also if you are in a development mode and constantly changing your applications you should consider deploying your apps in standalone OC4J. You can choose to do open-expanded directory deployment.
If you are using OC4J standalone:
1) you can replace the EAR file in applications directory and it redeploys
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3) It automatically redeploys the JSP files
4) If your EJBs are changed, replace your EJBs and change the timestamp on application.xml and it redeploys
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If you still have problems in hot-deployment in OC4J please send me a test case at [email protected]
thanks
Debu

Auto/hot deployment

I am using Oracle9ias 9.0.2.0.0. I need to use hot deployment. So, I modified
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application-auto-deploy-directory="../applications/auto"
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Hot deployment is development feature available in OC4J standalone.
In a deployment environment such as Oracle9iAS
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repository used for managing the app server and your application.
-Prasad

Creation of InitialContext fails when i hot-deploy scheduler-service.xml

Creation of InitialContext fails when i hot-deploy scheduler-service.xml
I configured scheduler-service as follows in Jboss 3.2:
scheduler-service.xml
<mbean code="org.jboss.varia.scheduler.Scheduler"
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<attribute name="StartAtStartup">true</attribute>
<attribute name="SchedulableClass">com.beta.my.utils.FMScheduler</attribute>
<attribute name="SchedulableArguments">Schedulabe Test,12345</attribute>
<attribute name="SchedulableArgumentTypes">java.lang.String,int</attribute>
<attribute name="InitialStartDate">0</attribute>
<attribute name="SchedulePeriod">10000</attribute>
<attribute name="InitialRepetitions">-1</attribute>
</mbean>
Schedulable Class
package com.beta.my.utils;
import java.util.Date;
import org.jboss.varia.scheduler.Schedulable;
public static class FMScheduler
implements Schedulable
private String mName;
private int mValue;
public FMScheduler(String pName,int pValue)
mName = pName;
mValue = pValue;
public void perform(Date pTimeOfCall,long pRemainingRepetitions)
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17:46:27,361 ERROR [STDERR] java.lang.NullPointerException
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r.java:825)
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(VersionHelper12.java:145)
17:46:27,361 ERROR [STDERR] at java.security.AccessController.doPrivileged(N
ative Method)
17:46:27,377 ERROR [STDERR] at com.sun.naming.internal.VersionHelper12.getRe
sources(VersionHelper12.java:142)
17:46:27,377 ERROR [STDERR] at com.sun.naming.internal.ResourceManager.getAp
plicationResources(ResourceManager.java:468)
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itialEnvironment(ResourceManager.java:159)
17:46:27,377 ERROR [STDERR] at javax.naming.InitialContext.init(InitialConte
xt.java:215)
17:46:27,377 ERROR [STDERR] at javax.naming.InitialContext.<init>(InitialCon
text.java:195)
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17:46:27,392 ERROR [STDERR] at org.jboss.varia.scheduler.Scheduler$Listener.
handleNotification(Scheduler.java:1263)
17:46:27,392 ERROR [STDERR] at org.jboss.mx.server.NotificationListenerProxy
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17:46:27,392 ERROR [STDERR] at javax.management.NotificationBroadcasterSuppo
rt.sendNotification(NotificationBroadcasterSupport.java:95)
17:46:27,392 ERROR [STDERR] at javax.management.timer.Timer.sendNotification
s(Timer.java:441)
17:46:27,392 ERROR [STDERR] at javax.management.timer.Timer.access$000(Timer
.java:31)
17:46:27,408 ERROR [STDERR] at javax.management.timer.Timer$RegisteredNotifi
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17:46:27,408 ERROR [STDERR] at org.jboss.mx.util.SchedulableRunnable.run(Sch
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17:46:27,408 ERROR [STDERR] at org.jboss.mx.util.ThreadPool$Worker.run(Threa
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please help me if u have any idea,thanks

Hi Hamsa,
Did you also create and configure an "Execution Destination"?
You can test the Metadata destination configuration on Web Service Navigator.
On the web service navigator (http://hostname:portnumber/wsnavigator) search in the metatda destination you have created for the service you imported in web dynpro as a model. If you can find it there test it on the ws navigator.
Best regards,
Yasar

Hot deployment of class files (non-EJB)

Also posting to the servlet newsgroup.
"Craig Ambrose" <[email protected]> wrote in message
news:[email protected]..
>
I am using WebLogic 6.1 and am interested in using auto-deployment indevelopment
mode of JSPs and class files that those JSPs rely on. I have a simpleWebLogic
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exploded in the WEB-INF\classes directory.
Any insights on dependancies of the hot depployment would be helpful.

Hot deployment of Plugin on OIM cluster

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It works from one or two nodes but not from all nodes.
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Any ideas?
Thanks
Akshat

That's what I have observed that even though the documentation says that PurgeCache.sh will do the trick but it never works. You have to restart the OIM Servers.

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Hi everybody,
Does anybody know something about hot deployment of servlets in a web
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I presume you are on 51.
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Kumar
"M. Hammer" wrote:
Hi everybody,
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So I have to register a servlet for hot deployment in the properties, but
then it doesn't belong to the application.
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Markus.

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Hi everybody,
Does anybody know something about hot deployment of servlets in a web
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hot-deploy from console...) but nothing really worked.
So I have to register a servlet for hot deployment in the properties, but
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Markus.

Are u saying that WARs are redeployed automatically but not individual servlets,
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Thanks.
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"M. Hammer" wrote:
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So I have to register a servlet for hot deployment in the properties, but
then it doesn't belong to the application.
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Markus.

Hot deployment while running...

Hi there!
Does any body have experience HotDeployment while end user are using the application?
For my self I got a real problem with HttpSession. After hot deployment all
sessions are invalidate!! I mean "request.getSession(false)" return false. I
have already carefully read documentation and pointed out that object store in
session must be serializable. OK it's done. Now what else should I check?
Thanks!

redeploying will invalidate a servlet session. this is not a bug, but rather the intended
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java weblogic.management.tools.WebAppComponentRefreshTool
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tracey
"Thierry Giguère" wrote:
Hi there!
Does any body have experience HotDeployment while end user are using the application?
For my self I got a real problem with HttpSession. After hot deployment all
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OC4J Hot Deployment/Extended deployment

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