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Java Spring with Hibernate Integrating Hibernate with Spring Add JPA Annotations to Entities

why I get this warning?

I did every step in the video , but i got some warning ?? any idea why

WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass$3$1 (file:/C:/Users/mina/.gradle/caches/modules-2/files-2.1/org.codehaus.groovy/groovy/2.4.7/10870e6511f544ce45152d0ad08d7514a00c8201/groovy-2.4.7.jar) to method java.lang.Object.finalize() WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass$3$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release

thanks in advance