Ignore mockito 4 tests for Java 21

Author: leonard84

spock-specs/mock-integration/mock-integration.gradle

@@ -49,6 +49,10 @@ codeGenerationLibraries.each { key, config ->
       }
       onlyIf { rootProject.ext.javaVersion < 21}
     }
+    if (key == "mockito4") {
+      // mockito4 only supports up to Java 20
+      onlyIf { rootProject.ext.javaVersion < 21}
+    }
   }
   tasks.register("test${key.capitalize()}WithObjenesis", Test) {
     systemProperty("org.spockframework.mock.testType", "${key.toLowerCase()} + objenesis")
@@ -64,6 +68,10 @@ codeGenerationLibraries.each { key, config ->
       }
       onlyIf { rootProject.ext.javaVersion < 21}
     }
+    if (key == "mockito4") {
+      // mockito4 only supports up to Java 20
+      onlyIf { rootProject.ext.javaVersion < 21}
+    }
   }
 }