当我使用 JDK11，然后安装 Groovy 时，出现了一些警告，如下所示：
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.vmplugin.v7.Java7$1 (file:/D:/Groovy/groovy-2.5.7/lib/groovy-2.5.7.jar) to constructor java.lang.invoke.MethodHandles$Lookup(java.lang.Class,int)
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.vmplugin.v7.Java7$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
Groovy Version: 2.5.7 JVM: 11.0.3 Vendor: Oracle Corporation OS: Windows 10
当我使用JDK 8时，没有警告，有人知道原因吗？