Merge pull request #3544 from TomEvers/feature/enum_negative_long

Fix deserializing enum with negative Long values

Author: frantuma

modules/swagger-core/src/test/java/io/swagger/v3/core/deserialization/JsonDeserializationTest.java

@@ -256,6 +256,7 @@ public void deserializeLongSchema() throws IOException {
         assertEquals(s.getEnum().get(0), 2147483647);
         assertEquals(s.getEnum().get(1), 3147483647L);
         assertEquals(s.getEnum().get(2), 31474836475505055L);
+        assertEquals(s.getEnum().get(3), -9223372036854775808L);
     }
 
     @Test

modules/swagger-core/src/test/resources/specFiles/oas3_2.yaml

@@ -912,6 +912,7 @@ paths:
           - 2147483647
           - 3147483647
           - 31474836475505055
+          - -9223372036854775808
       responses:
         '200':
           description: success!

modules/swagger-models/src/main/java/io/swagger/v3/oas/models/media/IntegerSchema.java

@@ -51,7 +51,7 @@ protected Number cast(Object value) {
         if (value != null) {
             try {
                 Number casted = NumberFormat.getInstance().parse(value.toString());
-                if (casted.longValue() <= Integer.MAX_VALUE) {
+                if (Integer.MIN_VALUE <= casted.longValue() && casted.longValue() <= Integer.MAX_VALUE) {
                     return Integer.parseInt(value.toString());
                 } else {
                     return Long.parseLong(value.toString());