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Chapter 1. Introduction
All customers using this product should start their transition to Migration Toolkit for Applications.
Migration Toolkit for Applications is fully backwards compatible with all features and rulesets available in Migration Toolkit for Runtimes and will be maintained in the long term.
1.1. About the CLI Guide
This guide is for engineers, consultants, and others who want to use the Migration Toolkit for Runtimes (MTR) to migrate Java applications, .NET applications, or other components. In MTR 7.1 and later, you can use MTR to analyze applications written in languages other than Java. To run analysis on applications written in languages other than Java, add a custom rule set and do not specify a target language. This guide describes how to install and run the CLI, review the generated reports, and take advantage of additional features.
1.2. About the Migration Toolkit for Runtimes
What is the Migration Toolkit for Runtimes?
The Migration Toolkit for Runtimes (MTR) is an extensible and customizable rule-based tool that simplifies the migration and modernization of Java applications.
MTR examines application artifacts, including project source directories and application archives, and then produces an HTML report highlighting areas needing changes. MTR supports many migration paths, including the following examples:
- Upgrading to the latest release of Red Hat JBoss Enterprise Application Platform
- Migrating from Oracle WebLogic or IBM WebSphere Application Server to Red Hat JBoss Enterprise Application Platform
- Containerizing applications and making them cloud-ready
- Migrating from Java Spring Boot to Quarkus
- Updating from Oracle JDK to OpenJDK
- Upgrading from OpenJDK 8 to OpenJDK 11
- Upgrading from OpenJDK 11 to OpenJDK 17
- Upgrading from OpenJDK 17 to OpenJDK 21
- Migrating EAP Java applications to Azure
- Migrating Spring Boot Java applications to Azure
For more information about use cases and migration paths, see the MTR for developers web page.
How does the Migration Toolkit for Runtimes simplify migration?
The Migration Toolkit for Runtimes looks for common resources and known trouble spots when migrating applications. It provides a high-level view of the technologies used by the application.
MTR generates a detailed report evaluating a migration or modernization path. This report can help you to estimate the effort required for large-scale projects and to reduce the work involved.
How do I learn more?
See the Introduction to the Migration Toolkit for Runtimes to learn more about the features, supported configurations, system requirements, and available tools in the Migration Toolkit for Runtimes.
1.3. The MTR CLI
The CLI is a command-line tool in the Migration Toolkit for Runtimes that you can use to assess and prioritize migration and modernization efforts for applications. It provides numerous reports that highlight the analysis without using the other tools. The CLI includes a wide array of customization options. By using the CLI, you can tune MTR analysis options or integrate with external automation tools.
