Edit web.xml in Webcenter Portal 11g

We can edit web.xml for ADF application and Portal framework application directly in the JDeveloper. But, if we want to make any configuration changes for webcenter Portal (Ealry known as : Webcenter Spaces), we can edit in the webcenter.ear file.

We might require to edit web.xml for below usecases.

1.       Configure Session timeout

2.       Change the check file modification to true for reflecting the adf changes.

3.      Disabling the content compression to reflect the skinning changes

<session-config>

<session-timeout>10</session-timeout>

</session-config>

<context-param>
<description>If this parameter is true, there will be an automatic check of the modification date of your JSPs, and saved state will be discarded when JSP's change. It will also automatically check if your skinning css files have changed without you having to restart the server. This makes development easier, but adds overhead. For this reason this parameter should be set to false when your application is deployed.</description>
<param-name>org.apache.myfaces.trinidad.CHECK_FILE_MODIFICATION</param-name>
<param-value>true</param-value>
</context-param>

<context-param>
<param-name>oracle.adfinternal.view.faces.DISABLE_CONTENT_COMPRESSION</param-name>
<param-value>true</param-value>
</context-param>

Webcenter.ear file path

<WEBCENTER_HOME>\archives\applications\webcenter.ear

Example :

Windows

C:\Oracle\Middlewar_Home\Oracle_WC1\archives\applications

Linux

/u01/app/oracle/product/fmw11g/Oracle_WC1/archives/applications

Steps

1.       Copy the webcenter.war as backup. Sometimes, while restarting the server it will redirect to the error page due to the webcenter 11.1.1.4.0 in prepared stage.

2.       Open webcenter.ear file.

3.      Edit web.xml and update the entries.

4.      Repack the webcenter.ear file.

5.      Restart the webcenter Portal server (WC_Spaces)

We can extract the ear file unpack the file in two ways.

Option 1:- Linux

1.       Create the temporary folder in the linux machine and extract it.

a.      #mkdir /tmp/webcenterear

b.      #cd /tmp/webcenterear

c.       #cd /u01/app/oracle/product/fmw11g/Oracle_WC1/archives/applications/

d.      #cp webcenter.ear /tmp/webcenterear

e.      #cd /tmp/webcenterear

f.        #jar –xvf webcenter.ear

g.      #mkdir war

h.      #jar –xvf ../spaces.war

2.       Edit web.xml file

3.      Unpack the webcenter.ear after editing the files

a.      #cd /tmp/webcenterear

b.      #jar -cvf ../spaces.war *

c.       #cd ..

d.      #rm -rf war

e.      #jar -cvf ../webcenter.ear *

4.       Copy paste the the webcenter.ear file to the Webcenter Path.

a.      #cp webcenter.ear /u01/app/oracle/product/fmw11g/Oracle_WC1/archives/applications/

5.      Restart the WC_Spaces managed server

Option 2 : Windows

1.       Copy paste the webcenter.ear file

2.       Open webcenter.ear with 7 zip tool

3.      Open the spaces.war

4.      Edit web.xml and add the entries in 7 zip explorer

5.      Save the web.xml file, spaces.war and webcenter.ear file without repacking the file

6.      Copy paste the file in the respective folder

7.      Restart the webcenter space

Error while opening JDBC connection.: Unexpected exception while enlisting XAConnection java.sql.SQLException: XA error: XAResource.XAER_RMFAIL start() failed

When we are keeping two Data Sources in Weblogic server and if both the data sources are pointing to one database, we gets this error. 

In order to resolve this issue, keep only one data source for one database so that weblogic server's multithreading system will handle the Database connection pool. If both the datasource points to same database, weblogic server works on parallel system and multiple thread will point to the dame database and connection will not be established due to the existing connection.