Spring Improve documentation on inferred destruction callbacks #30745

In the "Java" code snippet, the class ExampleBean is missing the implements DisposableBean declaration. Correction: Ensure the class implements the DisposableBean interface.

1. Added : DisposableBean after the class name to indicate that the class is implementing the DisposableBean interface.
2. Added the override keyword before the destroy method to indicate that it's being overridden from the DisposableBean interface.
3. Retained the cleanup function as-is, in case you have additional cleanup tasks you want to perform that are specific to this class.

Comment From: sbrannen

As stated in the documentation, the ExampleBean class intentionally does not implement DisposableBean since its cleanup method is configured as the destroy-method in the corresponding XML configuration.

Whereas, the AnotherExampleBean class in the subsequent example does implement DisposableBean.

In light of that, I am closing this PR.