fix: treat number example as number and not string

Author: Mattias-Sehlstedt

modules/swagger-core/src/main/java/io/swagger/v3/core/util/AnnotationsUtils.java

@@ -917,7 +917,7 @@ private static void setExampleSchema(io.swagger.v3.oas.annotations.media.Schema
             // Only parse "null" as null value when nullable=true
             if (node.isNull() && schema.nullable()) {
                 schemaObject.setExample(null);
-            } else if (node.isObject() || node.isArray()) {
+            } else if (node.isObject() || node.isArray() || SchemaTypeUtils.isNumberSchema(schemaObject)) {
                 schemaObject.setExample(node);
             } else {
                 schemaObject.setExample(exampleValue);
@@ -983,7 +983,12 @@ public static Schema resolveSchemaFromType(Class<?> schemaImplementation, Compon
     public static Schema resolveSchemaFromType(Class<?> schemaImplementation, Components components, JsonView jsonViewAnnotation, boolean openapi31) {
         return resolveSchemaFromType(schemaImplementation, components, jsonViewAnnotation, openapi31, null, null, null);
     }
-    public static Schema resolveSchemaFromType(Class<?> schemaImplementation, Components components, JsonView jsonViewAnnotation, boolean openapi31, io.swagger.v3.oas.annotations.media.Schema schemaAnnotation, io.swagger.v3.oas.annotations.media.ArraySchema arrayAnnotation, ModelConverterContext context) {
+    public static Schema resolveSchemaFromType(Class<?> schemaImplementation,
+                                               Components components,
+                                               JsonView jsonViewAnnotation,
+                                               boolean openapi31,
+                                               io.swagger.v3.oas.annotations.media.Schema schemaAnnotation,
+                                               io.swagger.v3.oas.annotations.media.ArraySchema arrayAnnotation, ModelConverterContext context) {
         Schema schemaObject;
         PrimitiveType primitiveType = PrimitiveType.fromType(schemaImplementation);
         if (primitiveType != null) {

modules/swagger-core/src/test/java/io/swagger/v3/core/util/AnnotationsUtilsTest.java

@@ -1,5 +1,6 @@
 package io.swagger.v3.core.util;
 
+import com.fasterxml.jackson.databind.node.IntNode;
 import com.google.common.collect.ImmutableMap;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -102,6 +103,12 @@ class DummyClass implements Serializable {}
     static class ExampleHolder {
         @io.swagger.v3.oas.annotations.media.Schema(type = "string", example = "5 lacs per annum")
         String value;
+
+        @io.swagger.v3.oas.annotations.media.Schema(type = "number", example = "10")
+        String numberValue;
+
+        @io.swagger.v3.oas.annotations.media.Schema(type = "integer", example = "5")
+        String integerValue;
     }
 
     @Test
@@ -126,4 +133,48 @@ public void testExampleStartingWithNumberShouldBeString() throws Exception {
         assertEquals(schema.get().getExample(), "5 lacs per annum");
     }
 
+    @Test
+    public void testExampleWithNumberTypeShouldHaveExampleAsNumber() throws Exception {
+        io.swagger.v3.oas.annotations.media.Schema schemaAnnotation =
+                ExampleHolder.class
+                        .getDeclaredField("numberValue")
+                        .getAnnotation(io.swagger.v3.oas.annotations.media.Schema.class);
+
+        Optional<Schema> schema =
+                AnnotationsUtils.getSchemaFromAnnotation(
+                        schemaAnnotation,
+                        null,
+                        null,
+                        false,
+                        null,
+                        Schema.SchemaResolution.DEFAULT,
+                        null
+                );
+
+        assertTrue(schema.isPresent());
+        assertEquals(schema.get().getExample(), IntNode.valueOf(10));
+    }
+
+    @Test
+    public void testExampleWithIntegerTypeShouldHaveExampleAsNumber() throws Exception {
+        io.swagger.v3.oas.annotations.media.Schema schemaAnnotation =
+                ExampleHolder.class
+                        .getDeclaredField("integerValue")
+                        .getAnnotation(io.swagger.v3.oas.annotations.media.Schema.class);
+
+        Optional<Schema> schema =
+                AnnotationsUtils.getSchemaFromAnnotation(
+                        schemaAnnotation,
+                        null,
+                        null,
+                        false,
+                        null,
+                        Schema.SchemaResolution.DEFAULT,
+                        null
+                );
+
+        assertTrue(schema.isPresent());
+        assertEquals(schema.get().getExample(), IntNode.valueOf(5));
+    }
+
 }