Adjust method names casing of Java interface

Signed-off-by: Kirill Gavrilov <[email protected]>

Author: gavvvr

docs/reference/technologies/server/java.mdx

@@ -382,7 +382,7 @@ class MyEventProvider extends EventProvider {
 To develop a hook, you need to create a new project and include the OpenFeature SDK as a dependency.
 This can be a new repository or included in [the existing contrib repository](https://github.com/open-feature/java-sdk-contrib) available under the OpenFeature organization.
 Implement your own hook by conforming to the `Hook interface`.
-To satisfy the interface, all methods (`Before`/`After`/`Finally`/`Error`) need to be defined.
+To satisfy the interface, all methods (`before`/`after`/`finallyAfter`/`error`) need to be defined.
 
 ```java
 class MyHook implements Hook {