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How Can I Programmatically Find Java Classes Implementing a Specific Interface?

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2024-12-14 11:44:13784browse

How Can I Programmatically Find Java Classes Implementing a Specific Interface?

Finding Classes Implementing an Interface in Java

This question seeks to uncover methods within Java that allow users to identify classes that implement a particular interface. Despite being available within Java, these functions are not readily apparent.

Answer:

One user suggests utilizing a custom package specifically designed for this purpose. The package employs the ASM library for enhanced performance over reflection-based approaches. It can be found here:

[JavaUtil Library](http://software.clapper.org/javautil/)

Within the library, the ClassFinder class provides the core functionality for locating classes that implement a given interface. The user notes that this utility has been used in a practical application (an RSS reader) and has proven to be efficient.

It is important to note that this solution is not integrated within any IDE, instead, it operates within the Java application itself. The library is licensed under the BSD license, allowing for its inclusion within your own code.

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