Fix java 11 warning for DialogProviderAnnotationProcessor - Fixes #31… #1322

Job	Run time
Main Maven build (ubuntu-latest, JDK 11)	4m 35s
Maven build (ubuntu-latest, JDK 17)	1m 55s
Maven build (ubuntu-latest, JDK 21)	2m 8s
Maven build (macOS-latest, JDK 11)	2m 36s
Maven build (macOS-latest, JDK 17)	1m 55s
Maven build (macOS-latest, JDK 21)	3m 52s
Maven build (windows-latest, JDK 11)	3m 25s
Maven build (windows-latest, JDK 17)	3m 17s
Maven build (windows-latest, JDK 21)	3m 37s
	27m 20s

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