To enable building circular projects:
Select the Window > Preferences > Java > Compiler > Building page.To disable building circular projects:
Then set the option Circular dependencies to Warning.
Select the Window > Preferences > Java > Compiler > Building page.
Then set the option Circular dependencies to Error.
To enable building a single project involved in a cycle:
Select the project, and from its pop-up menu, select Properties.To disable building a single project involved in a cycle:
In the Properties dialog, select the Java Compiler > Building page.
Then set the option Circular dependencies to Warning.
Select the project, and from its pop-up menu, select Properties.
In the Properties dialog, select the Java Compiler > Building page.
Then set the option Circular dependencies to Error.
Building a Java program
Building manually
Viewing compilation errors and warnings
Working with build paths
Adding a JAR file to the build path
Adding a library folder to the build path
Viewing and editing a project's build path