JDBC datasoure that works for embedded OC4J server of JDeveloper 10.1.3.4

Hi all,
I have this in the Application Module as JDBC datasource: java:comp/env/jdbc/DBCON
That works fine if I deploy the application on Oracle application- or tomcat-server.
On the connections tab in JDeveloper I have made a database connection with the name DBCON.
But when I run the application from Jdeveloper with the embedded OC4J server I get this error:
Unable to lookup Data Source at context java:comp/env/jdbc/DBCON
What do I do wrong?
Thanks in advance.

Hi,
Edit the <application_name>-data-sources.xml file under the root directory of your application, and setup a managed data source and connection pool with the data source having the correct jndi name, eg. jdbc/DBCON
You can either do this manually (which I find easier), or use the tool within JDev
Tools - > Embedded OC4J Preferences -> Current Workspace -> Data Sources -> New
-chris

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Embeded OC4J server within JDeveloper does not pick latest JAR files.

Hi,
Currently OC4J seems to be using an older version of JAXB1.0. Hence I created a shared library in my standalone OC4J server and imported the shared library while deploying my applicatoin in the ClassLoader task.I am trying to replicate the same in
my embeded OC4J server within JDeveloper.
I followed as indicated in readme.txt file in the \j2ee\home\shared-lib\ folder.
1) I created a folder called "jaxb" within /j2ee/home/shared-lib/. I then created a folder with the name "2.0" indicating the version number of the API.
2) I then added the relevant jaxb JARS to the jaxb/2.0 folder.
3) In the server.xml file available under /j2ee/home/config/ , I added the following entries.
<shared-library name="jaxb" version="2.0">
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I am still facing the issue where my embedded OC4J server is picking up the jaxb version 1.0.
What are the steps that needs to be taken to ensure that the embeded OC4J
takes in the jaxb2.0 version.

Refer
Re: SUN Jaxb2.0 incompatible with OC4J included in JDEV/OC4J ??

JDeveloper 10.1.3.3 and Embedded OC4J server

This is the Embedded OC4J server on JDeveloper 10.1.3.3 I have pointed it to compile in Java SDK 1.4.2_14
I have set up the projects datasources to use the JDBC driver ojdbc14.jar
[Starting OC4J using the following ports: HTTP=8988, RMI=23891, JMS=9227.]
**** Unable to obtain password from principals.xml. Using default.
C:\jdev\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\config>
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[waiting for the server to complete its initialization...]
*WARNING: Code-source C:\jdev\jdbc\lib\ojdbc14.jar (from <library> in /C:/jdev/jdev/mywork/NJTransit/NJTransit-oc4j-app.xml) has the same filename but is not identical to /C:/jdev/jdbc/lib/ojdbc14dms.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\jdev\j2ee\home\oc4j.jar). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader current-workspace-app.root:0.0.0.
*Ready message received from Oc4jNotifier.
Embedded OC4J startup time: 4421 ms.
Target URL -- http://207.200.160.250:8988/NJTransit-NJTransit-context-root/index.jsp
12/03/08 14:58:05 Oracle Containers for J2EE 10g (10.1.3.0.0) initialized
My question is why is it having trouble distinguishing between ojdbc14.jar and ojdbc14dms.jar
as a result I am getting unexpected behavior from the Application
Declaration in my code
int mypidm;
String sql1 = "SELECT SPRIDEN_PIDM FROM SPRIDEN WHERE SPRIDEN_ID = UPPER(?)";
try{
PreparedStatement pstmt = conn.prepareStatement(sql1);
pstmt.setString(1, studid);
ResultSet rs;
rs = pstmt.executeQuery();
//mypidm = rs.getInt("SPRIDEN_PIDM");
This part of the code drops through i.e. rs.next() always gets a false result
while (rs.next()) //evaluates to false so mypidm is always zero.
mypidm = rs.getInt("SPRIDEN_PIDM");
I am thinking that these two things are related.
Any Thoughts.

The tables are not created by default. You can configure your persistence.xml to define how you want tables to be created. The persistence.xml properties are defined in the TopLink class, EntityManagerFactoryProvider (oracle.toplink.<essentials>.ejb.cmp3).
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How to set up data source for JDeveloper's embedded OC4J Server?

Help needed. I Created a BMP EJB and tried to test
it with JDeveloper's( version 9.0.3) embedded
OC4J server. For JDBC, I created a data source
in data-source.xml lacated in JdeveloperHome\j2ee\home\config. However,
when I run the test client. I got the error
from JNDI lookup:
java.rmi.RemoteException: jdbc/entdatasource not found
Could anybody with similar experience help?
Thank you in advance.
-John Wang

Try making your changes in the data-source.xml located @ JDev_root\jdev\system9.0.3.1035\oc4j-config.
You can tell that this is the one to be modified by watching the log when you start the OC4J server. Look for the line that says C:\JDEV\JDK\bin\javaw.exe -ojvm -classpath . . .
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Hi,
For a customer, we made an ADF application using JDeveloper 10.1.2. Using instructions from http://www.oracle.com/technology/pub/articles/vohra-ajax.html we coded a servlet, to find a description from a code the user entered in the application, and show this on the webpage without page refresh (the application uses JSP and Struts). This works fine in the embedded oc4j server JDeveloper provides, and also works fine on the Standalone OC4J server. However, when the application is deployed to the iAS from the customer, everything works fine, except the ajax functionality, the description fields simply are not shown.
Does anyone have a clue what could be the problem? We also runned the application on the iAS server itself, and this gives the same error (no ajax functionality).
Thanks in advance,
Remco

Hi dvohra,
Thanks for your reply. I'm afraid I overlooked something, which is the reason of the ajax functionality not working. The Servlet that made the Ajax functionality used a datasource, and the same was in the Embedded OC4J Preferences. The ADF Business Components part was changed to use the datasource declared on the iAS. The Servlet however was not...
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JDeveloper 10.1.3.1 - injection works partiin embedded OC4J

Hi,
there are a few simple examples which do not work under embedded OC4J:
Example #1:
public class ContextListener implements ServletContextListener {
@PersistenceUnit(unitName="myUnitName")
private EntityManagerFactory emf;
public ContextListener() {
System.out.println( "constructor" );
public void contextInitialized(ServletContextEvent event) {
System.out.println( "init: emf = " + emf );
When I run using embedded OC4J (testing servlet) - I see message 'constructor',
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from servlet - IE displays 'page not found' message.
Example 2:
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@PersistenceUnit(unitName="myUnitName")
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public CatalogServlet( ) {
System.out.println( "constructor" );
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System.out.println( "Servlet init, emf = " + emf );
Here results are a bit different: I see 'contrustor' message, then exception
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Note that:
1) If instead of injecting EntityManagerFactory I try to inject session facade
bean (using @EJB) - this works both in listener and in servlet.
2) Injecting EntityManagerFactory works in my session facade bean,
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and then deploy that WAR file to GlassFish application server.
Is there something wrong with my code, or is there something wrong with
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Regards, Leonid.

Hello,
It is a bug in the way the embedded OC4J is initializing the application.
You can deploy successfuly deploy/run in the stand alone OC4J, so could you please for this purpose use the standalone version.
Regards
Tugdual Grall

Error on Opening "Embedded OC4J Server Preferences"

When I tried to open Tools-->Embedded OC4J Server Preferences, I got the following error:
java.lang.NullPointerException
     at oracle.ide.net.URLFactory.newURL(URLFactory.java:85)
     at oracle.jdevimpl.runner.oc4j.Oc4jWorkspaceConfig.transmogrifyConfigFiles(Oc4jWorkspaceConfig.java:224)
     at oracle.jdevimpl.runner.oc4j.Oc4jWorkspaceConfig.configureAll(Oc4jWorkspaceConfig.java:112)
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     at oracle.ide.CommandProcessor.invoke(CommandProcessor.java:343)
     at oracle.ide.CommandProcessor.invoke(CommandProcessor.java:110)
     at oracle.ide.IdeAction.performAction(IdeAction.java:665)
     at oracle.ide.IdeAction$1.run(IdeAction.java:857)
     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
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Dan

If you have Web project, check if HTML Root Directory has got a Null value ?
Double-click on the project to bring up project properties
Select Input Paths
See the value for HTML Root Directory.
If it is Null or invalid, edit to make sure it is valid and Click ok.
If not, create a new/empty project and see if you can launch Embedded OC4J server preferences dialog for that project.
raghu
JDev Team

How to use the HTTP Analyzer with the embedded OC4J server?

JDeveloper version: Studio Edition Version: 10.1.3.0.3.3412
I have a web application, which I run in the embedded OC4J server.
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I tried to setup the HTTP analyzer by looking at the help entry, but I could not make it work.
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Thanks in advance,
Regards,
Turgay Zengin

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Embeded Oc4j server not starting up in Jdeveloper 10g 10.1.3.0.3

hi,
I have created simle hello.jsp , but i try to run it with the embedded OC4j server i get the following error .
C:\jdk1.4\bin\javaw.exe -client -classpath C:\jdev\j2ee\home\oc4j.jar;C:\jdev\jdev\lib\jdev-oc4j-embedded.jar -Dhttp.proxyHost=172.16.233.34 -Dhttp.proxyPort=8080 -Dhttp.nonProxyHosts=local.|localhost|127.0.0.1 -Dhttps.proxyHost=172.16.233.34 -Dhttps.proxyPort=8080 -Dhttps.nonProxyHosts=local.|localhost|127.0.0.1 -Xverify:none -DcheckForUpdates=adminClientOnly -Doracle.application.environment=development -Doracle.j2ee.dont.use.memory.archive=true -Doracle.j2ee.http.socket.timeout=500 -Doc4j.jms.usePersistenceLockFiles=false oracle.oc4j.loader.boot.BootStrap -config C:\jdev\jdev\system\oracle.j2ee.10.1.3.34.12\embedded-oc4j\config\server.xml
[waiting for the server to complete its initialization...]
Sep 30, 2005 6:23:17 PM com.evermind.server.XMLDataSourcesConfig parseRootNode
INFO: Legacy datasource detected...attempting to convert to new syntax.
Error: cannot read: java.lang.Enum
05/09/30 18:23:23 Application: system is in state FAILED
05/09/30 18:23:23 Error initializing server: Error initializing ejb-modules: Error loading module file:/C:/jdev/jdev/system/oracle.j2ee.10.1.3.34.12/embedded-oc4j/applications/admin_ejb.jar: Syntax error in source or compilation failed in: C:\jdev\jdev\system\oracle.j2ee.10.1.3.34.12\embedded-oc4j\application-deployments\admin_ejb\generated\MBeanServerEjbRemote_StatefulSessionBeanWrapper0.java
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05/09/30 18:23:24 Fatal error: server exiting
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There is no such setting for OC4J log. Are you sure that you are looking at the right tab because there are generally 3 tabs on the bottom most log window which are Messages, Compiler and Embedded OC4J Server.
--Shiv

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Hi,
I recently upgraded to the Weblogic JDBC 5.1 driver for MS SQL Server and I am
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statement. I was previously using the Weblogic JDBC 4.x driver for MS SQL Server
and everything was working fine without any problems. For some reason I am receiving
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>
>
Joseph Weinstein <[email protected]> wrote:
What version of 5.1? You should be running with the latest service pack.
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site, and
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editting the
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Nadeem Khokhar wrote:
Hi,
I recently upgraded to the Weblogic JDBC 5.1 driver for MS SQL Serverand I am
now receiving exceptions in my application when attempting to executea prepared
statement. I was previously using the Weblogic JDBC 4.x driver forMS SQL Server
and everything was working fine without any problems. For some reasonI am receiving
a java.lang.CloneNotSupportedException using the new driver. I amusing the setLong(),
setString(), and setObject() methods of the PreparedStatement and thenattempting
to execute. The application code has not changed, so it seems thatsomething
has changed in the new driver implementation. Has anyone else hadthis problem
or know a work around? Here is a snippet of the actual exception:
S2 [09/30/02 10:46]: java.sql.SQLException: java.lang.CloneNotSupportedException
: Error in TdsParameter clone: cannot make duplicate of Stream object
S2 [09/30/02 10:46]: at weblogic.jdbcbase.mssqlserver4.TdsPreparedInputStream
<init>(TdsPreparedInputStream.java:99)
S2 [09/30/02 10:46]: at weblogic.jdbcbase.mssqlserver4.TdsStatement.doEscapeP
rocessing(TdsStatement.java:1317)
S2 [09/30/02 10:46]: at weblogic.jdbcbase.mssqlserver4.TdsStatement.execute(T
dsStatement.java:173)
S2 [09/30/02 10:46]: at weblogic.jdbcbase.mssqlserver4.TdsStatement.executeUp
date(TdsStatement.java:94)
S2 [09/30/02 10:46]: at weblogic.jdbcbase.mssqlserver4.TdsStatement.executeUp
date(TdsStatement.java:1438)
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Hi,
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Embedded OC4J Server could not be started up

hi ,
we are using java web services(JAX-RAC) in jdevloper for oaf page , for getting data from another application, if i run page from jdevlope with web services it is showing "failed to start embbed oc4j server". if i run without web services it is not showing any error.
please hlep me, advanced thanks.
regards,
kishore
Edited by: Saurabh on Nov 4, 2011 7:00 AM

When I try to open the Tools/Embedded OC4J Server Preferences...
the following error stack trace pops up:
java.lang.NullPointerException
     at oracle.ide.net.URLFactory.newURL(URLFactory.java:85)
     at oracle.jdevimpl.runner.oc4j.Oc4jWorkspaceConfig.transmogrifyConfigFiles(Oc4jWorkspaceConfig.java:224)
     at oracle.jdevimpl.runner.oc4j.Oc4jWorkspaceConfig.configureAll(Oc4jWorkspaceConfig.java:112)
     at oracle.jdevimpl.runner.oc4j.EmbeddedServerAdminCommand.doit(EmbeddedServerAdminCommand.java:50)
     at oracle.ide.CommandProcessor.invokeImpl(CommandProcessor.java:391)
     at oracle.ide.CommandProcessor.invoke(CommandProcessor.java:343)
     at oracle.ide.CommandProcessor.invoke(CommandProcessor.java:110)
     at oracle.ide.IdeAction.performAction(IdeAction.java:665)
     at oracle.ide.IdeAction$1.run(IdeAction.java:857)
     at java.awt.event.InvocationEvent.dispatch InvocationEvent.java:178)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
Any other way of checking the configuration? Corrupt files somewhere?
Thanks,
Gonzalo

JDBC datasoure that works for embedded OC4J server of JDeveloper 10.1.3.4

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