NEW: flag to control, if javax.validation NotNull annotation should generate a NotNull column or not (#1306)

src/main/java/io/ebeaninternal/server/deploy/parse/AnnotationParser.java

@@ -97,6 +97,9 @@ public abstract class AnnotationParser extends AnnotationBase {
    * can be applied to DDL generation.
    */
   protected boolean isEbeanValidationGroups(Class<?>[] groups) {
+    if (!util.isUseJavaxValidationNotNull()) {
+      return false;
+    }
     if (groups.length == 0
       || groups.length == 1 && javax.validation.groups.Default.class.isAssignableFrom(groups[0])) {
       return true;