To manage complex or large build processes in Ant, utilize the following techniques:
1. Modularize: Break down the project into smaller modules with their own build files, allowing for easier maintenance and parallel development.
2. Import: Use the task to include common build logic from external files, promoting reusability and reducing duplication.
3. Dependencies: Define inter-module dependencies using or tasks, ensuring correct build order and avoiding circular dependencies.
4. Properties: Employ properties and property files to store configuration data, enabling customization without modifying build files.
5. Path Management: Utilize path-like structures (e.g., classpath) to reference resources across modules, simplifying resource management.
6. Extension Points: Leverage extension points to allow custom behavior injection at specific stages of the build process.