Migrating applications to Liberty
Move your applications to WebSphere® Application Server Liberty with ease by using the migration tools to plan your migration, analyze your applications, and update your source code. The migration tools can help identify any differences between your current environment and the technologies in your new Liberty environment, such as Java™ EE 7 and Java SE 8.
Procedure
- Choose a Liberty environment
with the help of the Migration Strategy flowchart.
You can set up Liberty in a variety of environments, such as on-premises installations, Docker containers, or cloud environments such as Bluemix® Instant Runtimes. The Migration Strategy flowchart helps you choose which of these environments best suits your needs.
- Size your migration from WebSphere Application Server traditional or
third-party application servers by using the Migration Discovery tool.
By answering a few brief questions about your current installations and applications, you can identify items that need to be migrated and the degree to which your migration can be automated.
- Evaluate, inventory, and analyze your applications by using the command-line Migration Toolkit for Application Binaries. The application binary scanner provides several reports to help assess what is required to migrate your applications:
- The application evaluation report evaluates the technologies in your application to find the best-fit application platform.
- The inventory report identifies the contents of your applications, such as entity beans, session beans, and servlets.
- The detailed migration analysis report helps you better understand the type and scope of changes that your applications might require. The report also includes detailed help to assist with the analysis of the potential migration issues.
- Migrate your application source code with help from the WebSphere Application
Server Migration Toolkit. The Eclipse-based migration toolkit scans your application source to assist your migration in the following ways:
- Identifies deprecations, removals, and behavior changes that affect the application
- Provides quick fixes to automatically make updates when possible
- Provides detailed help for each migration issue
Subtopics
- Migrating data access applications to Liberty
For data access applications, you need to change configurations when you migrate a data source from the WebSphere Application Server traditional to Liberty. - Migrating applications that use concurrency and asynchronous programming models to Liberty
You can migrate applications that use Concurrency Utilities for Java EE, Asynchronous beans, and CommonJ Timer and Work Manager from WebSphere Application Server traditional to WebSphere Application Server Liberty. - Example API tasks that implement Concurrency Utilities for Java EE
You can migrate applications that use Asynchronous beans and CommonJ Timer and Work Manager APIs to use Concurrency Utilities for Java EE.


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