Install the Oracle OC4J 10.1.3.5 standalone server

Download, install and configure the Oracle OC4J 10.1.3.5 stand alone server

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Quick Links to:

Download the OC4J stand alone server

Go to the Oracle Internet Application Server site. Click on the Downloads tab and all available Application Server 10g Release 3 (10.1.3.x) Downloads will be displayed.
Scroll down until you reach the Oracle Containers for J2EE section and click on Pure Java. The Oracle Application Server 10g Software Downloads will be displayed.
Accept the License Agreement, then click on the Oracle Containers for J2EE 10g (OC4J) link. The download of the oc4j_extended_101350.zip file will start. Save this zip file on your workstation.
NOTE: Before the download begins, Oracle will require you to either log in using an existing Oracle account or you will have to create a new Oracle account.

Install the OC4J stand alone server

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Configure the OC4J stand alone server

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Edit the file ${ORACLE_HOME}/bin/oc4j.cmd and find the following block of code:

if "%2%"=="" ( 
  goto oc4j
) else (
  echo.
  echo Error: The option %2% was not recognized.
  goto help
)

and change it to:

if "%2%"=="" ( 
  set JVMARGS=%OC4J_JVM_ARGS% -XX:PermSize=2048m -XX:MaxPermSize=2560m -Xmx1024M -Xms1024M
  echo start JMVARGS = %JVMARGS%
  goto oc4j
) else (
  echo.
  echo Error: The option %2% was not recognized.
  goto help
)

When you are satisfied that everything is correct, SAVE your changes.

Edit the file ${ORACLE_HOME}/j2ee/home/config/system-application.xml and change:
```
<import-shared-library name="oracle.toplink">
```
to:
```

```
If you want to disable the Oracle Enterprise Manager then change
```
<import-shared-library name="oracle.xml"/>
```
to:
```

```
When you are satisfied that everything is correct, SAVE your changes.
We need to add a datasource so that the applications can pull data from the database. Edit ${ORACLE_HOME/j2ee/home/config/data-sources.xml to add a datasource. Here's an example of adding a MITSIS datasource:
```
<data-source
    class="com.evermind.sql.DriverManagerDataSource"
    name="OracleDS2"
    location="jdbc/MitsisDS"
    xa-location="jdbc/xa/StargateXADS-unused"
    ejb-location="jdbc/OracleDS-unused"
    connection-driver="oracle.jdbc.driver.OracleDriver"
    username=""
    password=""
    url="jdbc:oracle:thin:@//earth-vault-2.mit.edu:1523/sundev11"
    inactivity-timeout="30"
/>
```
where obviously you MUST add your username and password. If you do not have a username and password, request a them from your team leader.
When you are satisfied that everything is correct, SAVE your changes.
FOR WINDOWS ONLY - setting the administrator's password

Open a CMD window and cd to the ${ORACLE_HOME}/bin directory. Type the following command:
```
oc4j -start
```
You will be asked to enter and confirm a password. Pick a password that is easy for you to remember. You will need to use this password when configuring Maven.
In order to use Spring 3.X with OC4J 10.1.3, you'll need to swap out the default XML parser in OC4J with something more modern. xercesImpl.jar and xml-apis.jar work fine. To swap the parser out, you need to create a new shared library in the OC4J enterprise manager and then edit the system-application.xml file to use your new shared library instead of the Oracle XML parser.

Start and stop the OC4J server.

Open ${ORACLE_HOME}/j2ee/home/application-deployments/default/orion-application.xml with a text editor. If the file or any sub-directory does not exist, create them as needed.

If you had to create the file a new, these are the contents of the file:
```
<?xml version='1.0' encoding='utf-8'?>
<orion-application
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="http://xmlns.oracle.com/oracleas/schema/orion-application-10_0.xsd"
    schema-major-version="10"
    schema-minor-version="0"
    component-classification="internal">
    <imported-shared-libraries>
        <remove-inherited name="oracle.xml"/>
    </imported-shared-libraries>
</orion-application>
```
If you had an existing file, add this block to it:
```
<imported-shared-libraries>
    <remove-inherited name="oracle.xml"/>
</imported-shared-libraries>
```
When you are satisfied that everything is correct, SAVE your changes.
FOR ALL OPERATING SYSTEMS - how to change the administrator password.

Open ${ORACLE_HOME}/j2ee/home/config/system-jazn-data.xml with a text editor.

Find the <user> tag block for oc4jadmin. Change the oc4jadmin's <credentials> property to (substituting your password for myNewPassowd):
```
<credentials>!myNewPassword</credentials>
```
Be sure to preface the password with an ! to inidcate that this is a plain text value.

When completed, the oc4jadmin <user> should look something like:
```
<user>
    <name>oc4jadmin</name>
    <display-name>OC4J Administrator</display-name>
    <guid>E33D5A508AA511DF8F573778FB23EDF8</guid>
    <description>OC4J Administrator</description>
    <credentials>!myNewPassword</credentials>
</user>
```
Save the changes and restart the OC4J server.

Getting Better Debugging Information From OC4J

By default, some run time errors that you'll see when testing web apps in OC4J are not too helpful. You can coax OC4J into giving you more information about certain errors by making the following changes in global-web-application.xml:

Open ${ORACLE_HOME}/j2ee/home/config/global-web-application.xml with a text editor.

Turn on "development" mode - in the <orion-web-app> section at the top of the file, change the "development" setting to true:

<orion-web-app
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:noNamespaceSchemaLocation="http://xmlns.oracle.com/oracleas/schema/orion-web-10_0.xsd"
  jsp-cache-directory="./persistence"
  servlet-webdir="/servlet"
  development="true"
  jsp-timeout="0"
  jsp-cache-tlds="standard"
  schema-major-version="10"
  schema-minor-version="0">

Turn on debug mode. In the "jsp" servlet section, set a parameter debug_mode to true. The section should look like this:
```
<servlet>
      <servlet-name>jsp</servlet-name>
      <servlet-class>oracle.jsp.runtimev2.JspServlet</servlet-class>
      <init-param>
        <param-name>debug_mode</param-name>
        <param-value>true</param-value>
      </init-param>
      <load-on-startup>0</load-on-startup>
</servlet>
```
With these settings, you should get more meaningful messages in your browser when you run into certain errors (JSP syntax errors for example).
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