Updating enterprise applications consists of adding a new
file or module to an installed Java Platform,
Enterprise Edition (Java EE) application, or replacing or removing
an installed application, file or module.
Before you begin
Before you update the application files on a server, ensure
that the files are assembled in deployable modules.
Next, refer
to Ways to update enterprise application files and decide
how to update your application files. You can update enterprise applications
or modules using the administrative console, the wsadmin tool, or
Java MBean programming. These ways provide similar updating capabilities.
Further,
ensure that the updated files can be installed to your deployment
targets.
About this task
The steps describe how to update deployed applications
or modules using the administrative console.
Procedure
- Back up the installed application or module.
- Go to the Enterprise applications page
of the administrative console.
Click in
the console navigation tree.
- Export the application to an EAR file or export a file
in the application.
Select the application you want
to export and click Export or Export
File. Exporting preserves the binding information.
- With the application selected on the Enterprise
applications page, click Update. The Preparing for application update page
is displayed.
- Under Specify the EAR, WAR, JAR, RAR, or SAR
module to upload and install:
- Ensure that Application to be updated refers
to the application to be updated.
- Under Application update options,
select the installed application, module, or file that you want to
update.
The online help Preparing for application update settings provides
detailed information on the options.
Avoid trouble: You
cannot add, remove, or modify a Java Application Programming Interface
(API) for XML-Based Web Services (JAX-WS) annotation using the
Replace
or add a single file or
Replace, add, or delete
multiple files update options. These options change a
single file or a partial application. If you change a JAX-WS annotation
using either of these options, the product does not return an error.
However, you might encounter problems deploying annotated web services.
gotcha
- If you selected the Replace the entire application or Replace
or add a single module option:
- Click Next to display a wizard
for updating application files.
- Complete the steps in the update wizard.
This
update wizard, which is similar to the installation wizard, provides
fields for specifying or editing application binding information.
Refer to information on installing applications using the console
and on the Preparing for application installation binding
settings page for guidance.
Note that the installation steps
have the merged binding information from the new version and the old
version. If the new version has bindings for application artifacts
such as Enterprise JavaBeans (EJB)
Java Naming and Directory Interface (JNDI) names, EJB references or
resource references, then those bindings will be part of the merged
binding information. If new bindings are not present, then bindings
are taken from the installed (old) version. If bindings are not present
in the old version and if the default binding generation option is
enabled, then the default bindings will be part of the merged binding
information.
You can select whether to ignore bindings in the
old version or ones in the new version.
- Click Finish.
- If you did not use the Manage modules page
of the update wizard, after updating the application, map the installed
application or module to servers.
Use the page accessed from the Enterprise applications page.
- Go to the Manage modules page. Click .
- Specify the application server where you want to install
modules contained in your application and click OK.
You can deploy Java 2 Platform, Enterprise Edition (J2EE)
1.4 modules to servers on Version 6 or later nodes. You can deploy
Java Platform, Enterprise Edition (Java EE) 5 modules to servers on
Version 7.x or later nodes. You can deploy Java EE 6 modules to servers
on Version 8.x or later nodes.
Results
After replacement of a full application, the product uninstalls
the old application. After replacement of a module, file or partial
application, the product removes the old installed module, file or
partial application from the installed application.
What to do next
After the application file or module installs successfully,
do the following:
- Save the changes to your configuration.
- If needed, restart the application manually so the changes take
effect.
If the application is updated while it is running, the product
automatically stops the application or only its changed components,
updates the application logic, and restarts the stopped application
or its components.
If you update module metadata while an application
is running, restarting the application might not be sufficient for
the changes to take effect. For example, if you change descriptors
in running Java EE 6 applications that use annotations, you must reinstall
the application. If you change classes that introduce, remove, or
alter class hierarchies within an application, and those changes impact
annotated classes, you also must reinstall the application.
- If the application you are updating is deployed on a server that
has its application class loader policy set to Single on
the application server settings page, restart the server.