refs-#4760-Fix enum type annotations processing

Author: micryc

Diff for: modules/swagger-core/src/main/java/io/swagger/v3/core/jackson/ModelResolver.java

@@ -368,7 +368,9 @@ public Schema resolve(AnnotatedType annotatedType, ModelConverterContext context
             if (xml != null) {
                 model.xml(xml);
             }
-            applyBeanValidatorAnnotations(model, annotatedType.getCtxAnnotations(), null, false);
+            if (!type.isEnumType()){
+                applyBeanValidatorAnnotations(model, annotatedType.getCtxAnnotations(), null, false);
+            }
             resolveSchemaMembers(model, annotatedType, context, next);
             if (resolvedArrayAnnotation != null) {
                 ArraySchema schema = new ArraySchema();

Diff for: modules/swagger-core/src/test/java/io/swagger/v3/core/resolving/Ticket4760Test.java

@@ -0,0 +1,60 @@
+package io.swagger.v3.core.resolving;
+
+import io.swagger.v3.core.converter.ModelConverters;
+import io.swagger.v3.core.matchers.SerializationMatchers;
+import io.swagger.v3.oas.models.media.Schema;
+import org.testng.annotations.Test;
+
+import javax.validation.constraints.Size;
+import java.util.List;
+import java.util.Map;
+
+public class Ticket4760Test {
+
+    @Test
+    public void testArraySchemaItemsValidation(){
+        final Map<String, Schema> stringSchemaMap = ModelConverters.getInstance().readAll(ClassWithArraySchemaItemsValidation.class);
+        final String expectedJson = "{\n" +
+                "  \"ClassWithArraySchemaItemsValidation\" : {\n" +
+                "    \"type\" : \"object\",\n" +
+                "    \"properties\" : {\n" +
+                "      \"setOfEnums\" : {\n" +
+                "        \"maxItems\" : 3,\n" +
+                "        \"minItems\" : 1,\n" +
+                "        \"type\" : \"array\",\n" +
+                "        \"items\" : {\n" +
+                "          \"type\" : \"string\",\n" +
+                "          \"enum\" : [ \"green\", \"blue\" ]\n" +
+                "        }\n" +
+                "      }\n" +
+                "    }\n" +
+                "  }\n" +
+                "}";
+        SerializationMatchers.assertEqualsToJson(stringSchemaMap, expectedJson);
+    }
+
+    private static class ClassWithArraySchemaItemsValidation{
+
+        public enum MyEnum {
+            red,
+            green
+        }
+
+        public enum MyOtherEnum {
+            green,
+            blue
+        }
+
+        @io.swagger.v3.oas.annotations.media.ArraySchema(schema = @io.swagger.v3.oas.annotations.media.Schema(implementation = MyOtherEnum.class))
+        @Size(min = 1, max = 3)
+        private List<MyEnum> setOfEnums;
+
+        public List<MyEnum> getSetOfEnums() {
+            return setOfEnums;
+        }
+
+        public void setSetOfEnums(List<MyEnum> setOfEnums) {
+            this.setOfEnums = setOfEnums;
+        }
+    }
+}