[java] Fix enum ref issue in array default value (#14638)

* fix enum ref issue in array default value (java)

* update samples

* update tests

* update samples

modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java

@@ -3946,7 +3946,7 @@ public class DefaultCodegen implements CodegenConfig {
 
         if (!ModelUtils.isArraySchema(p) && !ModelUtils.isMapSchema(p) && !isFreeFormObject(p) && !isAnyTypeWithNothingElseSet) {
             /* schemas that are not Array, not ModelUtils.isMapSchema, not isFreeFormObject, not AnyType with nothing else set
-             *  so primitive schemas int, str, number, referenced schemas, AnyType schemas with properties, enums, or composition
+             * so primitive schemas int, str, number, referenced schemas, AnyType schemas with properties, enums, or composition
              */
             String type = getSchemaType(p);
             setNonArrayMapProperty(property, type);

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java

@@ -1004,7 +1004,7 @@ public abstract class AbstractJavaCodegen extends DefaultCodegen implements Code
 
                 String defaultValue = "";
 
-                if (cp.items.isEnum) { // enum
+                if (cp.items.getIsEnumOrRef()) { // inline or ref enum
                     List<String> defaultValues = new ArrayList<>();
                     for (String _value : _values) {
                         defaultValues.add(cp.items.datatypeWithEnum + "." + toEnumVarName(_value, cp.items.dataType));

modules/openapi-generator/src/test/resources/3_0/echo_api.yaml

@@ -365,10 +365,23 @@ components:
             - sold
       xml:
         name: pet
+    StringEnumRef:
+      type: string
+      enum:
+      - success
+      - failure
+      - unclassified
     DefaultValue:
       type: object
       description: to test the default value of properties
       properties:
+        array_string_enum_ref_default:
+          type: array
+          items:
+            $ref: '#/components/schemas/StringEnumRef'
+          default:
+            - success
+            - failure
         array_string_enum_default:
           type: array
           items:

openapitools.json

@@ -2,6 +2,6 @@
   "$schema": "node_modules/@openapitools/openapi-generator-cli/config.schema.json",
   "spaces": 2,
   "generator-cli": {
-    "version": "6.2.1"
+    "version": "6.3.0"
   }
 }

samples/client/echo_api/java/apache-httpclient/.openapi-generator/FILES

@@ -17,6 +17,7 @@ docs/PathApi.md
 docs/Pet.md
 docs/Query.md
 docs/QueryApi.md
+docs/StringEnumRef.md
 docs/Tag.md
 docs/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.md
 docs/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.md
@@ -54,6 +55,7 @@ src/main/java/org/openapitools/client/model/DataQueryAllOf.java
 src/main/java/org/openapitools/client/model/DefaultValue.java
 src/main/java/org/openapitools/client/model/Pet.java
 src/main/java/org/openapitools/client/model/Query.java
+src/main/java/org/openapitools/client/model/StringEnumRef.java
 src/main/java/org/openapitools/client/model/Tag.java
 src/main/java/org/openapitools/client/model/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.java
 src/main/java/org/openapitools/client/model/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.java

samples/client/echo_api/java/apache-httpclient/README.md

@@ -128,6 +128,7 @@ Class | Method | HTTP request | Description
  - [DefaultValue](docs/DefaultValue.md)
  - [Pet](docs/Pet.md)
  - [Query](docs/Query.md)
+ - [StringEnumRef](docs/StringEnumRef.md)
  - [Tag](docs/Tag.md)
  - [TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter](docs/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.md)
  - [TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter](docs/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.md)

samples/client/echo_api/java/apache-httpclient/api/openapi.yaml

@@ -377,9 +377,22 @@ components:
       type: object
       xml:
         name: pet
+    StringEnumRef:
+      enum:
+      - success
+      - failure
+      - unclassified
+      type: string
     DefaultValue:
       description: to test the default value of properties
       properties:
+        array_string_enum_ref_default:
+          default:
+          - success
+          - failure
+          items:
+            $ref: '#/components/schemas/StringEnumRef'
+          type: array
         array_string_enum_default:
           default:
           - success

samples/client/echo_api/java/apache-httpclient/docs/DefaultValue.md

@@ -8,6 +8,7 @@ to test the default value of properties
 
 | Name | Type | Description | Notes |
 |------------ | ------------- | ------------- | -------------|
+|**arrayStringEnumRefDefault** | **List<StringEnumRef>** |  |  [optional] |
 |**arrayStringEnumDefault** | [**List<ArrayStringEnumDefaultEnum>**](#List<ArrayStringEnumDefaultEnum>) |  |  [optional] |
 |**arrayStringDefault** | **List<String>** |  |  [optional] |
 |**arrayIntegerDefault** | **List<Integer>** |  |  [optional] |

samples/client/echo_api/java/apache-httpclient/docs/StringEnumRef.md

@@ -0,0 +1,15 @@
+
+
+# StringEnumRef
+
+## Enum
+
+
+* `SUCCESS` (value: `"success"`)
+
+* `FAILURE` (value: `"failure"`)
+
+* `UNCLASSIFIED` (value: `"unclassified"`)
+
+
+

samples/client/echo_api/java/apache-httpclient/src/main/java/org/openapitools/client/model/DefaultValue.java

@@ -22,6 +22,7 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
 import java.util.ArrayList;
 import java.util.List;
+import org.openapitools.client.model.StringEnumRef;
 import org.openapitools.jackson.nullable.JsonNullable;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.openapitools.jackson.nullable.JsonNullable;
@@ -36,6 +37,7 @@ import java.util.StringJoiner;
  * to test the default value of properties
  */
 @JsonPropertyOrder({
+  DefaultValue.JSON_PROPERTY_ARRAY_STRING_ENUM_REF_DEFAULT,
   DefaultValue.JSON_PROPERTY_ARRAY_STRING_ENUM_DEFAULT,
   DefaultValue.JSON_PROPERTY_ARRAY_STRING_DEFAULT,
   DefaultValue.JSON_PROPERTY_ARRAY_INTEGER_DEFAULT,
@@ -45,6 +47,9 @@ import java.util.StringJoiner;
 })
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class DefaultValue {
+  public static final String JSON_PROPERTY_ARRAY_STRING_ENUM_REF_DEFAULT = "array_string_enum_ref_default";
+  private List<StringEnumRef> arrayStringEnumRefDefault = new ArrayList<>(Arrays.asList(StringEnumRef.SUCCESS, StringEnumRef.FAILURE));
+
   /**
    * Gets or Sets arrayStringEnumDefault
    */
@@ -103,6 +108,40 @@ public class DefaultValue {
   public DefaultValue() {
   }
 
+  public DefaultValue arrayStringEnumRefDefault(List<StringEnumRef> arrayStringEnumRefDefault) {
+    
+    this.arrayStringEnumRefDefault = arrayStringEnumRefDefault;
+    return this;
+  }
+
+  public DefaultValue addArrayStringEnumRefDefaultItem(StringEnumRef arrayStringEnumRefDefaultItem) {
+    if (this.arrayStringEnumRefDefault == null) {
+      this.arrayStringEnumRefDefault = new ArrayList<>(Arrays.asList(StringEnumRef.SUCCESS, StringEnumRef.FAILURE));
+    }
+    this.arrayStringEnumRefDefault.add(arrayStringEnumRefDefaultItem);
+    return this;
+  }
+
+   /**
+   * Get arrayStringEnumRefDefault
+   * @return arrayStringEnumRefDefault
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_ARRAY_STRING_ENUM_REF_DEFAULT)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public List<StringEnumRef> getArrayStringEnumRefDefault() {
+    return arrayStringEnumRefDefault;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_ARRAY_STRING_ENUM_REF_DEFAULT)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setArrayStringEnumRefDefault(List<StringEnumRef> arrayStringEnumRefDefault) {
+    this.arrayStringEnumRefDefault = arrayStringEnumRefDefault;
+  }
+
+
   public DefaultValue arrayStringEnumDefault(List<ArrayStringEnumDefaultEnum> arrayStringEnumDefault) {
     
     this.arrayStringEnumDefault = arrayStringEnumDefault;
@@ -328,7 +367,8 @@ public class DefaultValue {
       return false;
     }
     DefaultValue defaultValue = (DefaultValue) o;
-    return Objects.equals(this.arrayStringEnumDefault, defaultValue.arrayStringEnumDefault) &&
+    return Objects.equals(this.arrayStringEnumRefDefault, defaultValue.arrayStringEnumRefDefault) &&
+        Objects.equals(this.arrayStringEnumDefault, defaultValue.arrayStringEnumDefault) &&
         Objects.equals(this.arrayStringDefault, defaultValue.arrayStringDefault) &&
         Objects.equals(this.arrayIntegerDefault, defaultValue.arrayIntegerDefault) &&
         Objects.equals(this.arrayString, defaultValue.arrayString) &&
@@ -342,7 +382,7 @@ public class DefaultValue {
 
   @Override
   public int hashCode() {
-    return Objects.hash(arrayStringEnumDefault, arrayStringDefault, arrayIntegerDefault, arrayString, hashCodeNullable(arrayStringNullable), hashCodeNullable(stringNullable));
+    return Objects.hash(arrayStringEnumRefDefault, arrayStringEnumDefault, arrayStringDefault, arrayIntegerDefault, arrayString, hashCodeNullable(arrayStringNullable), hashCodeNullable(stringNullable));
   }
 
   private static <T> int hashCodeNullable(JsonNullable<T> a) {
@@ -356,6 +396,7 @@ public class DefaultValue {
   public String toString() {
     StringBuilder sb = new StringBuilder();
     sb.append("class DefaultValue {\n");
+    sb.append("    arrayStringEnumRefDefault: ").append(toIndentedString(arrayStringEnumRefDefault)).append("\n");
     sb.append("    arrayStringEnumDefault: ").append(toIndentedString(arrayStringEnumDefault)).append("\n");
     sb.append("    arrayStringDefault: ").append(toIndentedString(arrayStringDefault)).append("\n");
     sb.append("    arrayIntegerDefault: ").append(toIndentedString(arrayIntegerDefault)).append("\n");
@@ -409,6 +450,22 @@ public class DefaultValue {
 
     StringJoiner joiner = new StringJoiner("&");
 
+    // add `array_string_enum_ref_default` to the URL query string
+    if (getArrayStringEnumRefDefault() != null) {
+      for (int i = 0; i < getArrayStringEnumRefDefault().size(); i++) {
+        if (getArrayStringEnumRefDefault().get(i) != null) {
+          try {
+            joiner.add(String.format("%sarray_string_enum_ref_default%s%s=%s", prefix, suffix,
+                "".equals(suffix) ? "" : String.format("%s%d%s", containerPrefix, i, containerSuffix),
+                URLEncoder.encode(String.valueOf(getArrayStringEnumRefDefault().get(i)), "UTF-8").replaceAll("\\+", "%20")));
+          } catch (UnsupportedEncodingException e) {
+            // Should never happen, UTF-8 is always supported
+            throw new RuntimeException(e);
+          }
+        }
+      }
+    }
+
     // add `array_string_enum_default` to the URL query string
     if (getArrayStringEnumDefault() != null) {
       for (int i = 0; i < getArrayStringEnumDefault().size(); i++) {

samples/client/echo_api/java/apache-httpclient/src/main/java/org/openapitools/client/model/StringEnumRef.java

@@ -0,0 +1,78 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.util.StringJoiner;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+/**
+ * Gets or Sets StringEnumRef
+ */
+public enum StringEnumRef {
+  
+  SUCCESS("success"),
+  
+  FAILURE("failure"),
+  
+  UNCLASSIFIED("unclassified");
+
+  private String value;
+
+  StringEnumRef(String value) {
+    this.value = value;
+  }
+
+  @JsonValue
+  public String getValue() {
+    return value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  @JsonCreator
+  public static StringEnumRef fromValue(String value) {
+    for (StringEnumRef b : StringEnumRef.values()) {
+      if (b.value.equals(value)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+  }
+
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @param prefix prefix of the query string
+   * @return URL query string
+   */
+  public String toUrlQueryString(String prefix) {
+    if (prefix == null) {
+      prefix = "";
+    }
+
+    return String.format("%s=%s", prefix, this.toString());
+  }
+}
+

samples/client/echo_api/java/apache-httpclient/src/test/java/org/openapitools/client/CustomTest.java

@@ -158,6 +158,10 @@ public class CustomTest {
     public void testArrayDefaultValues() {
         // test array default values
         DefaultValue d = new DefaultValue();
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().size(), 2);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(0), StringEnumRef.SUCCESS);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(1), StringEnumRef.FAILURE);
+
         Assert.assertEquals(d.getArrayStringEnumDefault().size(), 2);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(0), DefaultValue.ArrayStringEnumDefaultEnum.SUCCESS);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(1), DefaultValue.ArrayStringEnumDefaultEnum.FAILURE);
@@ -197,6 +201,10 @@ public class CustomTest {
         DefaultValue d = apiClient.getObjectMapper().readValue(str, new TypeReference<DefaultValue>() {
         });
 
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().size(), 2);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(0), StringEnumRef.SUCCESS);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(1), StringEnumRef.FAILURE);
+
         Assert.assertEquals(d.getArrayStringEnumDefault().size(), 2);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(0), DefaultValue.ArrayStringEnumDefaultEnum.SUCCESS);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(1), DefaultValue.ArrayStringEnumDefaultEnum.FAILURE);
@@ -212,18 +220,21 @@ public class CustomTest {
         Assert.assertNull(d.getArrayStringNullable());
         Assert.assertEquals(d.getArrayString().size(), 0);
 
-        Assert.assertEquals(apiClient.getObjectMapper().writeValueAsString(d), "{\"array_string_enum_default\":[\"success\",\"failure\"],\"array_string_default\":[\"failure\",\"skipped\"],\"array_integer_default\":[1,3],\"array_string\":[],\"array_string_nullable\":{\"present\":false},\"string_nullable\":{\"present\":false}}");
+        Assert.assertEquals(apiClient.getObjectMapper().writeValueAsString(d), "{\"array_string_enum_ref_default\":[\"success\",\"failure\"],\"array_string_enum_default\":[\"success\",\"failure\"],\"array_string_default\":[\"failure\",\"skipped\"],\"array_integer_default\":[1,3],\"array_string\":[],\"array_string_nullable\":{\"present\":false},\"string_nullable\":{\"present\":false}}");
     }
 
     @Test
     public void testDefaultValuesSerializationWithJSONString() throws IOException {
         ApiClient apiClient = new ApiClient();
 
-        String str = "{ \"array_string_enum_default\": [\"unclassified\"], \"array_string_default\": [\"failure\"] }";
+        String str = "{ \"array_string_enum_ref_default\": [\"unclassified\"], \"array_string_enum_default\": [\"unclassified\"], \"array_string_default\": [\"failure\"] }";
 
         DefaultValue d = apiClient.getObjectMapper().readValue(str, new TypeReference<DefaultValue>() {
         });
 
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().size(), 1);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(0), StringEnumRef.UNCLASSIFIED);
+
         Assert.assertEquals(d.getArrayStringEnumDefault().size(), 1);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(0), DefaultValue.ArrayStringEnumDefaultEnum.UNCLASSIFIED);
 
@@ -237,7 +248,7 @@ public class CustomTest {
         Assert.assertNull(d.getArrayStringNullable());
         Assert.assertEquals(d.getArrayString().size(), 0);
 
-        Assert.assertEquals(apiClient.getObjectMapper().writeValueAsString(d), "{\"array_string_enum_default\":[\"unclassified\"],\"array_string_default\":[\"failure\"],\"array_integer_default\":[1,3],\"array_string\":[],\"array_string_nullable\":{\"present\":false},\"string_nullable\":{\"present\":false}}");
+        Assert.assertEquals(apiClient.getObjectMapper().writeValueAsString(d), "{\"array_string_enum_ref_default\":[\"unclassified\"],\"array_string_enum_default\":[\"unclassified\"],\"array_string_default\":[\"failure\"],\"array_integer_default\":[1,3],\"array_string\":[],\"array_string_nullable\":{\"present\":false},\"string_nullable\":{\"present\":false}}");
     }
 
     @Test

samples/client/echo_api/java/apache-httpclient/src/test/java/org/openapitools/client/model/StringEnumRefTest.java

@@ -0,0 +1,33 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for StringEnumRef
+ */
+public class StringEnumRefTest {
+    /**
+     * Model tests for StringEnumRef
+     */
+    @Test
+    public void testStringEnumRef() {
+        // TODO: test StringEnumRef
+    }
+
+}

samples/client/echo_api/java/feign-gson/.openapi-generator/FILES

@@ -35,6 +35,7 @@ src/main/java/org/openapitools/client/model/DataQueryAllOf.java
 src/main/java/org/openapitools/client/model/DefaultValue.java
 src/main/java/org/openapitools/client/model/Pet.java
 src/main/java/org/openapitools/client/model/Query.java
+src/main/java/org/openapitools/client/model/StringEnumRef.java
 src/main/java/org/openapitools/client/model/Tag.java
 src/main/java/org/openapitools/client/model/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.java
 src/main/java/org/openapitools/client/model/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.java

samples/client/echo_api/java/feign-gson/api/openapi.yaml

@@ -377,9 +377,22 @@ components:
       type: object
       xml:
         name: pet
+    StringEnumRef:
+      enum:
+      - success
+      - failure
+      - unclassified
+      type: string
     DefaultValue:
       description: to test the default value of properties
       properties:
+        array_string_enum_ref_default:
+          default:
+          - success
+          - failure
+          items:
+            $ref: '#/components/schemas/StringEnumRef'
+          type: array
         array_string_enum_default:
           default:
           - success

samples/client/echo_api/java/feign-gson/src/main/java/org/openapitools/client/model/DefaultValue.java

@@ -23,6 +23,7 @@ import com.google.gson.stream.JsonWriter;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import org.openapitools.client.model.StringEnumRef;
 import org.openapitools.jackson.nullable.JsonNullable;
 
 /**
@@ -30,6 +31,10 @@ import org.openapitools.jackson.nullable.JsonNullable;
  */
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class DefaultValue {
+  public static final String SERIALIZED_NAME_ARRAY_STRING_ENUM_REF_DEFAULT = "array_string_enum_ref_default";
+  @SerializedName(SERIALIZED_NAME_ARRAY_STRING_ENUM_REF_DEFAULT)
+  private List<StringEnumRef> arrayStringEnumRefDefault = new ArrayList<>(Arrays.asList(StringEnumRef.SUCCESS, StringEnumRef.FAILURE));
+
   /**
    * Gets or Sets arrayStringEnumDefault
    */
@@ -106,6 +111,36 @@ public class DefaultValue {
   public DefaultValue() {
   }
 
+  public DefaultValue arrayStringEnumRefDefault(List<StringEnumRef> arrayStringEnumRefDefault) {
+    
+    this.arrayStringEnumRefDefault = arrayStringEnumRefDefault;
+    return this;
+  }
+
+  public DefaultValue addArrayStringEnumRefDefaultItem(StringEnumRef arrayStringEnumRefDefaultItem) {
+    if (this.arrayStringEnumRefDefault == null) {
+      this.arrayStringEnumRefDefault = new ArrayList<>(Arrays.asList(StringEnumRef.SUCCESS, StringEnumRef.FAILURE));
+    }
+    this.arrayStringEnumRefDefault.add(arrayStringEnumRefDefaultItem);
+    return this;
+  }
+
+   /**
+   * Get arrayStringEnumRefDefault
+   * @return arrayStringEnumRefDefault
+  **/
+  @javax.annotation.Nullable
+
+  public List<StringEnumRef> getArrayStringEnumRefDefault() {
+    return arrayStringEnumRefDefault;
+  }
+
+
+  public void setArrayStringEnumRefDefault(List<StringEnumRef> arrayStringEnumRefDefault) {
+    this.arrayStringEnumRefDefault = arrayStringEnumRefDefault;
+  }
+
+
   public DefaultValue arrayStringEnumDefault(List<ArrayStringEnumDefaultEnum> arrayStringEnumDefault) {
     
     this.arrayStringEnumDefault = arrayStringEnumDefault;
@@ -287,7 +322,8 @@ public class DefaultValue {
       return false;
     }
     DefaultValue defaultValue = (DefaultValue) o;
-    return Objects.equals(this.arrayStringEnumDefault, defaultValue.arrayStringEnumDefault) &&
+    return Objects.equals(this.arrayStringEnumRefDefault, defaultValue.arrayStringEnumRefDefault) &&
+        Objects.equals(this.arrayStringEnumDefault, defaultValue.arrayStringEnumDefault) &&
         Objects.equals(this.arrayStringDefault, defaultValue.arrayStringDefault) &&
         Objects.equals(this.arrayIntegerDefault, defaultValue.arrayIntegerDefault) &&
         Objects.equals(this.arrayString, defaultValue.arrayString) &&
@@ -301,7 +337,7 @@ public class DefaultValue {
 
   @Override
   public int hashCode() {
-    return Objects.hash(arrayStringEnumDefault, arrayStringDefault, arrayIntegerDefault, arrayString, arrayStringNullable, stringNullable);
+    return Objects.hash(arrayStringEnumRefDefault, arrayStringEnumDefault, arrayStringDefault, arrayIntegerDefault, arrayString, arrayStringNullable, stringNullable);
   }
 
   private static <T> int hashCodeNullable(JsonNullable<T> a) {
@@ -315,6 +351,7 @@ public class DefaultValue {
   public String toString() {
     StringBuilder sb = new StringBuilder();
     sb.append("class DefaultValue {\n");
+    sb.append("    arrayStringEnumRefDefault: ").append(toIndentedString(arrayStringEnumRefDefault)).append("\n");
     sb.append("    arrayStringEnumDefault: ").append(toIndentedString(arrayStringEnumDefault)).append("\n");
     sb.append("    arrayStringDefault: ").append(toIndentedString(arrayStringDefault)).append("\n");
     sb.append("    arrayIntegerDefault: ").append(toIndentedString(arrayIntegerDefault)).append("\n");

samples/client/echo_api/java/feign-gson/src/main/java/org/openapitools/client/model/StringEnumRef.java

@@ -0,0 +1,75 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import com.google.gson.annotations.SerializedName;
+
+import java.io.IOException;
+import com.google.gson.TypeAdapter;
+import com.google.gson.annotations.JsonAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+
+/**
+ * Gets or Sets StringEnumRef
+ */
+@JsonAdapter(StringEnumRef.Adapter.class)
+public enum StringEnumRef {
+  
+  SUCCESS("success"),
+  
+  FAILURE("failure"),
+  
+  UNCLASSIFIED("unclassified");
+
+  private String value;
+
+  StringEnumRef(String value) {
+    this.value = value;
+  }
+
+  public String getValue() {
+    return value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  public static StringEnumRef fromValue(String value) {
+    for (StringEnumRef b : StringEnumRef.values()) {
+      if (b.value.equals(value)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+  }
+
+  public static class Adapter extends TypeAdapter<StringEnumRef> {
+    @Override
+    public void write(final JsonWriter jsonWriter, final StringEnumRef enumeration) throws IOException {
+      jsonWriter.value(enumeration.getValue());
+    }
+
+    @Override
+    public StringEnumRef read(final JsonReader jsonReader) throws IOException {
+      String value = jsonReader.nextString();
+      return StringEnumRef.fromValue(value);
+    }
+  }
+}
+

samples/client/echo_api/java/feign-gson/src/test/java/org/openapitools/client/model/StringEnumRefTest.java

@@ -0,0 +1,32 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import com.google.gson.annotations.SerializedName;
+import org.junit.jupiter.api.Test;
+
+
+/**
+ * Model tests for StringEnumRef
+ */
+class StringEnumRefTest {
+    /**
+     * Model tests for StringEnumRef
+     */
+    @Test
+    void testStringEnumRef() {
+        // TODO: test StringEnumRef
+    }
+
+}

samples/client/echo_api/java/native/.openapi-generator/FILES

@@ -17,6 +17,7 @@ docs/PathApi.md
 docs/Pet.md
 docs/Query.md
 docs/QueryApi.md
+docs/StringEnumRef.md
 docs/Tag.md
 docs/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.md
 docs/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.md
@@ -51,6 +52,7 @@ src/main/java/org/openapitools/client/model/DataQueryAllOf.java
 src/main/java/org/openapitools/client/model/DefaultValue.java
 src/main/java/org/openapitools/client/model/Pet.java
 src/main/java/org/openapitools/client/model/Query.java
+src/main/java/org/openapitools/client/model/StringEnumRef.java
 src/main/java/org/openapitools/client/model/Tag.java
 src/main/java/org/openapitools/client/model/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.java
 src/main/java/org/openapitools/client/model/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.java

samples/client/echo_api/java/native/README.md

@@ -138,6 +138,7 @@ Class | Method | HTTP request | Description
  - [DefaultValue](docs/DefaultValue.md)
  - [Pet](docs/Pet.md)
  - [Query](docs/Query.md)
+ - [StringEnumRef](docs/StringEnumRef.md)
  - [Tag](docs/Tag.md)
  - [TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter](docs/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.md)
  - [TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter](docs/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.md)

samples/client/echo_api/java/native/api/openapi.yaml

@@ -377,9 +377,22 @@ components:
       type: object
       xml:
         name: pet
+    StringEnumRef:
+      enum:
+      - success
+      - failure
+      - unclassified
+      type: string
     DefaultValue:
       description: to test the default value of properties
       properties:
+        array_string_enum_ref_default:
+          default:
+          - success
+          - failure
+          items:
+            $ref: '#/components/schemas/StringEnumRef'
+          type: array
         array_string_enum_default:
           default:
           - success

samples/client/echo_api/java/native/docs/DefaultValue.md

@@ -8,6 +8,7 @@ to test the default value of properties
 
 | Name | Type | Description | Notes |
 |------------ | ------------- | ------------- | -------------|
+|**arrayStringEnumRefDefault** | **List<StringEnumRef>** |  |  [optional] |
 |**arrayStringEnumDefault** | [**List<ArrayStringEnumDefaultEnum>**](#List<ArrayStringEnumDefaultEnum>) |  |  [optional] |
 |**arrayStringDefault** | **List<String>** |  |  [optional] |
 |**arrayIntegerDefault** | **List<Integer>** |  |  [optional] |

samples/client/echo_api/java/native/docs/EnumStringRef.md

@@ -0,0 +1,15 @@
+
+
+# EnumStringRef
+
+## Enum
+
+
+* `SUCCESS` (value: `"success"`)
+
+* `FAILURE` (value: `"failure"`)
+
+* `UNCLASSIFIED` (value: `"unclassified"`)
+
+
+

samples/client/echo_api/java/native/docs/StringEnumRef.md

@@ -0,0 +1,15 @@
+
+
+# StringEnumRef
+
+## Enum
+
+
+* `SUCCESS` (value: `"success"`)
+
+* `FAILURE` (value: `"failure"`)
+
+* `UNCLASSIFIED` (value: `"unclassified"`)
+
+
+

samples/client/echo_api/java/native/src/main/java/org/openapitools/client/model/DefaultValue.java

@@ -27,6 +27,7 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
 import java.util.ArrayList;
 import java.util.List;
+import org.openapitools.client.model.StringEnumRef;
 import org.openapitools.jackson.nullable.JsonNullable;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.openapitools.jackson.nullable.JsonNullable;
@@ -38,6 +39,7 @@ import com.fasterxml.jackson.annotation.JsonPropertyOrder;
  * to test the default value of properties
  */
 @JsonPropertyOrder({
+  DefaultValue.JSON_PROPERTY_ARRAY_STRING_ENUM_REF_DEFAULT,
   DefaultValue.JSON_PROPERTY_ARRAY_STRING_ENUM_DEFAULT,
   DefaultValue.JSON_PROPERTY_ARRAY_STRING_DEFAULT,
   DefaultValue.JSON_PROPERTY_ARRAY_INTEGER_DEFAULT,
@@ -47,6 +49,9 @@ import com.fasterxml.jackson.annotation.JsonPropertyOrder;
 })
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class DefaultValue {
+  public static final String JSON_PROPERTY_ARRAY_STRING_ENUM_REF_DEFAULT = "array_string_enum_ref_default";
+  private List<StringEnumRef> arrayStringEnumRefDefault = new ArrayList<>(Arrays.asList(StringEnumRef.SUCCESS, StringEnumRef.FAILURE));
+
   /**
    * Gets or Sets arrayStringEnumDefault
    */
@@ -105,6 +110,39 @@ public class DefaultValue {
   public DefaultValue() { 
   }
 
+  public DefaultValue arrayStringEnumRefDefault(List<StringEnumRef> arrayStringEnumRefDefault) {
+    this.arrayStringEnumRefDefault = arrayStringEnumRefDefault;
+    return this;
+  }
+
+  public DefaultValue addArrayStringEnumRefDefaultItem(StringEnumRef arrayStringEnumRefDefaultItem) {
+    if (this.arrayStringEnumRefDefault == null) {
+      this.arrayStringEnumRefDefault = new ArrayList<>();
+    }
+    this.arrayStringEnumRefDefault.add(arrayStringEnumRefDefaultItem);
+    return this;
+  }
+
+   /**
+   * Get arrayStringEnumRefDefault
+   * @return arrayStringEnumRefDefault
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_ARRAY_STRING_ENUM_REF_DEFAULT)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public List<StringEnumRef> getArrayStringEnumRefDefault() {
+    return arrayStringEnumRefDefault;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_ARRAY_STRING_ENUM_REF_DEFAULT)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setArrayStringEnumRefDefault(List<StringEnumRef> arrayStringEnumRefDefault) {
+    this.arrayStringEnumRefDefault = arrayStringEnumRefDefault;
+  }
+
+
   public DefaultValue arrayStringEnumDefault(List<ArrayStringEnumDefaultEnum> arrayStringEnumDefault) {
     this.arrayStringEnumDefault = arrayStringEnumDefault;
     return this;
@@ -327,7 +365,8 @@ public class DefaultValue {
       return false;
     }
     DefaultValue defaultValue = (DefaultValue) o;
-    return Objects.equals(this.arrayStringEnumDefault, defaultValue.arrayStringEnumDefault) &&
+    return Objects.equals(this.arrayStringEnumRefDefault, defaultValue.arrayStringEnumRefDefault) &&
+        Objects.equals(this.arrayStringEnumDefault, defaultValue.arrayStringEnumDefault) &&
         Objects.equals(this.arrayStringDefault, defaultValue.arrayStringDefault) &&
         Objects.equals(this.arrayIntegerDefault, defaultValue.arrayIntegerDefault) &&
         Objects.equals(this.arrayString, defaultValue.arrayString) &&
@@ -341,7 +380,7 @@ public class DefaultValue {
 
   @Override
   public int hashCode() {
-    return Objects.hash(arrayStringEnumDefault, arrayStringDefault, arrayIntegerDefault, arrayString, hashCodeNullable(arrayStringNullable), hashCodeNullable(stringNullable));
+    return Objects.hash(arrayStringEnumRefDefault, arrayStringEnumDefault, arrayStringDefault, arrayIntegerDefault, arrayString, hashCodeNullable(arrayStringNullable), hashCodeNullable(stringNullable));
   }
 
   private static <T> int hashCodeNullable(JsonNullable<T> a) {
@@ -355,6 +394,7 @@ public class DefaultValue {
   public String toString() {
     StringBuilder sb = new StringBuilder();
     sb.append("class DefaultValue {\n");
+    sb.append("    arrayStringEnumRefDefault: ").append(toIndentedString(arrayStringEnumRefDefault)).append("\n");
     sb.append("    arrayStringEnumDefault: ").append(toIndentedString(arrayStringEnumDefault)).append("\n");
     sb.append("    arrayStringDefault: ").append(toIndentedString(arrayStringDefault)).append("\n");
     sb.append("    arrayIntegerDefault: ").append(toIndentedString(arrayIntegerDefault)).append("\n");
@@ -408,6 +448,17 @@ public class DefaultValue {
 
     StringJoiner joiner = new StringJoiner("&");
 
+    // add `array_string_enum_ref_default` to the URL query string
+    if (getArrayStringEnumRefDefault() != null) {
+      for (int i = 0; i < getArrayStringEnumRefDefault().size(); i++) {
+        if (getArrayStringEnumRefDefault().get(i) != null) {
+          joiner.add(String.format("%sarray_string_enum_ref_default%s%s=%s", prefix, suffix,
+              "".equals(suffix) ? "" : String.format("%s%d%s", containerPrefix, i, containerSuffix),
+              URLEncoder.encode(String.valueOf(getArrayStringEnumRefDefault().get(i)), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+        }
+      }
+    }
+
     // add `array_string_enum_default` to the URL query string
     if (getArrayStringEnumDefault() != null) {
       for (int i = 0; i < getArrayStringEnumDefault().size(); i++) {

samples/client/echo_api/java/native/src/main/java/org/openapitools/client/model/EnumStringRef.java

@@ -0,0 +1,81 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.StringJoiner;
+import java.util.Objects;
+import java.util.Arrays;
+import java.util.Map;
+import java.util.HashMap;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+/**
+ * Gets or Sets EnumStringRef
+ */
+public enum EnumStringRef {
+  
+  SUCCESS("success"),
+  
+  FAILURE("failure"),
+  
+  UNCLASSIFIED("unclassified");
+
+  private String value;
+
+  EnumStringRef(String value) {
+    this.value = value;
+  }
+
+  @JsonValue
+  public String getValue() {
+    return value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  @JsonCreator
+  public static EnumStringRef fromValue(String value) {
+    for (EnumStringRef b : EnumStringRef.values()) {
+      if (b.value.equals(value)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+  }
+
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @param prefix prefix of the query string
+   * @return URL query string
+   */
+  public String toUrlQueryString(String prefix) {
+    if (prefix == null) {
+      prefix = "";
+    }
+
+    return String.format("%s=%s", prefix, this.toString());
+  }
+
+}
+

samples/client/echo_api/java/native/src/main/java/org/openapitools/client/model/StringEnumRef.java

@@ -0,0 +1,81 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.StringJoiner;
+import java.util.Objects;
+import java.util.Arrays;
+import java.util.Map;
+import java.util.HashMap;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+/**
+ * Gets or Sets StringEnumRef
+ */
+public enum StringEnumRef {
+  
+  SUCCESS("success"),
+  
+  FAILURE("failure"),
+  
+  UNCLASSIFIED("unclassified");
+
+  private String value;
+
+  StringEnumRef(String value) {
+    this.value = value;
+  }
+
+  @JsonValue
+  public String getValue() {
+    return value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  @JsonCreator
+  public static StringEnumRef fromValue(String value) {
+    for (StringEnumRef b : StringEnumRef.values()) {
+      if (b.value.equals(value)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+  }
+
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @param prefix prefix of the query string
+   * @return URL query string
+   */
+  public String toUrlQueryString(String prefix) {
+    if (prefix == null) {
+      prefix = "";
+    }
+
+    return String.format("%s=%s", prefix, this.toString());
+  }
+
+}
+

samples/client/echo_api/java/native/src/test/java/org/openapitools/client/CustomTest.java

@@ -150,6 +150,10 @@ public class CustomTest {
     public void testArrayDefaultValues() {
         // test array default values
         DefaultValue d = new DefaultValue();
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().size(), 2);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(0), StringEnumRef.SUCCESS);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(1), StringEnumRef.FAILURE);
+
         Assert.assertEquals(d.getArrayStringEnumDefault().size(), 2);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(0), DefaultValue.ArrayStringEnumDefaultEnum.SUCCESS);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(1), DefaultValue.ArrayStringEnumDefaultEnum.FAILURE);
@@ -188,6 +192,10 @@ public class CustomTest {
         DefaultValue d = apiClient.getObjectMapper().readValue(str, new TypeReference<DefaultValue>() {
         });
 
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().size(), 2);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(0), StringEnumRef.SUCCESS);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(1), StringEnumRef.FAILURE);
+
         Assert.assertEquals(d.getArrayStringEnumDefault().size(), 2);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(0), DefaultValue.ArrayStringEnumDefaultEnum.SUCCESS);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(1), DefaultValue.ArrayStringEnumDefaultEnum.FAILURE);
@@ -203,18 +211,21 @@ public class CustomTest {
         Assert.assertNull(d.getArrayStringNullable());
         Assert.assertEquals(d.getArrayString().size(), 0);
 
-        Assert.assertEquals(apiClient.getObjectMapper().writeValueAsString(d), "{\"array_string_enum_default\":[\"success\",\"failure\"],\"array_string_default\":[\"failure\",\"skipped\"],\"array_integer_default\":[1,3],\"array_string\":[]}");
+        Assert.assertEquals(apiClient.getObjectMapper().writeValueAsString(d), "{\"array_string_enum_ref_default\":[\"success\",\"failure\"],\"array_string_enum_default\":[\"success\",\"failure\"],\"array_string_default\":[\"failure\",\"skipped\"],\"array_integer_default\":[1,3],\"array_string\":[]}");
     }
 
     @Test
     public void testDefaultValuesSerializationWithJSONString() throws IOException {
         ApiClient apiClient = new ApiClient();
 
-        String str = "{ \"array_string_enum_default\": [\"unclassified\"], \"array_string_default\": [\"failure\"] }";
+        String str = "{ \"array_string_enum_ref_default\": [\"unclassified\"], \"array_string_enum_default\": [\"unclassified\"], \"array_string_default\": [\"failure\"] }";
 
         DefaultValue d = apiClient.getObjectMapper().readValue(str, new TypeReference<DefaultValue>() {
         });
 
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().size(), 1);
+        Assert.assertEquals(d.getArrayStringEnumRefDefault().get(0), StringEnumRef.UNCLASSIFIED);
+
         Assert.assertEquals(d.getArrayStringEnumDefault().size(), 1);
         Assert.assertEquals(d.getArrayStringEnumDefault().get(0), DefaultValue.ArrayStringEnumDefaultEnum.UNCLASSIFIED);
 
@@ -228,7 +239,7 @@ public class CustomTest {
         Assert.assertNull(d.getArrayStringNullable());
         Assert.assertEquals(d.getArrayString().size(), 0);
 
-        Assert.assertEquals(apiClient.getObjectMapper().writeValueAsString(d), "{\"array_string_enum_default\":[\"unclassified\"],\"array_string_default\":[\"failure\"],\"array_integer_default\":[1,3],\"array_string\":[]}");
+        Assert.assertEquals(apiClient.getObjectMapper().writeValueAsString(d), "{\"array_string_enum_ref_default\":[\"unclassified\"],\"array_string_enum_default\":[\"unclassified\"],\"array_string_default\":[\"failure\"],\"array_integer_default\":[1,3],\"array_string\":[]}");
     }
 
     @Test
@@ -247,7 +258,6 @@ public class CustomTest {
         }
     }
 
-
     /**
      * Test form parameter(s)
      *

samples/client/echo_api/java/native/src/test/java/org/openapitools/client/model/EnumStringRefTest.java

@@ -0,0 +1,33 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for EnumStringRef
+ */
+public class EnumStringRefTest {
+    /**
+     * Model tests for EnumStringRef
+     */
+    @Test
+    public void testEnumStringRef() {
+        // TODO: test EnumStringRef
+    }
+
+}

samples/client/echo_api/java/native/src/test/java/org/openapitools/client/model/StringEnumRefTest.java

@@ -0,0 +1,33 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for StringEnumRef
+ */
+public class StringEnumRefTest {
+    /**
+     * Model tests for StringEnumRef
+     */
+    @Test
+    public void testStringEnumRef() {
+        // TODO: test StringEnumRef
+    }
+
+}

samples/client/echo_api/java/okhttp-gson/.openapi-generator/FILES

@@ -17,6 +17,7 @@ docs/PathApi.md
 docs/Pet.md
 docs/Query.md
 docs/QueryApi.md
+docs/StringEnumRef.md
 docs/Tag.md
 docs/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.md
 docs/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.md
@@ -59,6 +60,7 @@ src/main/java/org/openapitools/client/model/DataQueryAllOf.java
 src/main/java/org/openapitools/client/model/DefaultValue.java
 src/main/java/org/openapitools/client/model/Pet.java
 src/main/java/org/openapitools/client/model/Query.java
+src/main/java/org/openapitools/client/model/StringEnumRef.java
 src/main/java/org/openapitools/client/model/Tag.java
 src/main/java/org/openapitools/client/model/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.java
 src/main/java/org/openapitools/client/model/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.java

samples/client/echo_api/java/okhttp-gson/README.md

@@ -135,6 +135,7 @@ Class | Method | HTTP request | Description
  - [DefaultValue](docs/DefaultValue.md)
  - [Pet](docs/Pet.md)
  - [Query](docs/Query.md)
+ - [StringEnumRef](docs/StringEnumRef.md)
  - [Tag](docs/Tag.md)
  - [TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter](docs/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.md)
  - [TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter](docs/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.md)

samples/client/echo_api/java/okhttp-gson/api/openapi.yaml

@@ -377,9 +377,22 @@ components:
       type: object
       xml:
         name: pet
+    StringEnumRef:
+      enum:
+      - success
+      - failure
+      - unclassified
+      type: string
     DefaultValue:
       description: to test the default value of properties
       properties:
+        array_string_enum_ref_default:
+          default:
+          - success
+          - failure
+          items:
+            $ref: '#/components/schemas/StringEnumRef'
+          type: array
         array_string_enum_default:
           default:
           - success

samples/client/echo_api/java/okhttp-gson/docs/DefaultValue.md

@@ -8,6 +8,7 @@ to test the default value of properties
 
 | Name | Type | Description | Notes |
 |------------ | ------------- | ------------- | -------------|
+|**arrayStringEnumRefDefault** | **List<StringEnumRef>** |  |  [optional] |
 |**arrayStringEnumDefault** | [**List<ArrayStringEnumDefaultEnum>**](#List<ArrayStringEnumDefaultEnum>) |  |  [optional] |
 |**arrayStringDefault** | **List<String>** |  |  [optional] |
 |**arrayIntegerDefault** | **List<Integer>** |  |  [optional] |

samples/client/echo_api/java/okhttp-gson/docs/StringEnumRef.md

@@ -0,0 +1,15 @@
+
+
+# StringEnumRef
+
+## Enum
+
+
+* `SUCCESS` (value: `"success"`)
+
+* `FAILURE` (value: `"failure"`)
+
+* `UNCLASSIFIED` (value: `"unclassified"`)
+
+
+

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/DefaultValue.java

@@ -23,6 +23,7 @@ import com.google.gson.stream.JsonWriter;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import org.openapitools.client.model.StringEnumRef;
 import org.openapitools.jackson.nullable.JsonNullable;
 
 import com.google.gson.Gson;
@@ -51,6 +52,10 @@ import org.openapitools.client.JSON;
  */
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class DefaultValue {
+  public static final String SERIALIZED_NAME_ARRAY_STRING_ENUM_REF_DEFAULT = "array_string_enum_ref_default";
+  @SerializedName(SERIALIZED_NAME_ARRAY_STRING_ENUM_REF_DEFAULT)
+  private List<StringEnumRef> arrayStringEnumRefDefault = null;
+
   /**
    * Gets or Sets arrayStringEnumDefault
    */
@@ -127,6 +132,36 @@ public class DefaultValue {
   public DefaultValue() {
   }
 
+  public DefaultValue arrayStringEnumRefDefault(List<StringEnumRef> arrayStringEnumRefDefault) {
+    
+    this.arrayStringEnumRefDefault = arrayStringEnumRefDefault;
+    return this;
+  }
+
+  public DefaultValue addArrayStringEnumRefDefaultItem(StringEnumRef arrayStringEnumRefDefaultItem) {
+    if (this.arrayStringEnumRefDefault == null) {
+      this.arrayStringEnumRefDefault = new ArrayList<>(Arrays.asList(StringEnumRef.SUCCESS, StringEnumRef.FAILURE));
+    }
+    this.arrayStringEnumRefDefault.add(arrayStringEnumRefDefaultItem);
+    return this;
+  }
+
+   /**
+   * Get arrayStringEnumRefDefault
+   * @return arrayStringEnumRefDefault
+  **/
+  @javax.annotation.Nullable
+
+  public List<StringEnumRef> getArrayStringEnumRefDefault() {
+    return arrayStringEnumRefDefault;
+  }
+
+
+  public void setArrayStringEnumRefDefault(List<StringEnumRef> arrayStringEnumRefDefault) {
+    this.arrayStringEnumRefDefault = arrayStringEnumRefDefault;
+  }
+
+
   public DefaultValue arrayStringEnumDefault(List<ArrayStringEnumDefaultEnum> arrayStringEnumDefault) {
     
     this.arrayStringEnumDefault = arrayStringEnumDefault;
@@ -309,7 +344,8 @@ public class DefaultValue {
       return false;
     }
     DefaultValue defaultValue = (DefaultValue) o;
-    return Objects.equals(this.arrayStringEnumDefault, defaultValue.arrayStringEnumDefault) &&
+    return Objects.equals(this.arrayStringEnumRefDefault, defaultValue.arrayStringEnumRefDefault) &&
+        Objects.equals(this.arrayStringEnumDefault, defaultValue.arrayStringEnumDefault) &&
         Objects.equals(this.arrayStringDefault, defaultValue.arrayStringDefault) &&
         Objects.equals(this.arrayIntegerDefault, defaultValue.arrayIntegerDefault) &&
         Objects.equals(this.arrayString, defaultValue.arrayString) &&
@@ -323,7 +359,7 @@ public class DefaultValue {
 
   @Override
   public int hashCode() {
-    return Objects.hash(arrayStringEnumDefault, arrayStringDefault, arrayIntegerDefault, arrayString, arrayStringNullable, stringNullable);
+    return Objects.hash(arrayStringEnumRefDefault, arrayStringEnumDefault, arrayStringDefault, arrayIntegerDefault, arrayString, arrayStringNullable, stringNullable);
   }
 
   private static <T> int hashCodeNullable(JsonNullable<T> a) {
@@ -337,6 +373,7 @@ public class DefaultValue {
   public String toString() {
     StringBuilder sb = new StringBuilder();
     sb.append("class DefaultValue {\n");
+    sb.append("    arrayStringEnumRefDefault: ").append(toIndentedString(arrayStringEnumRefDefault)).append("\n");
     sb.append("    arrayStringEnumDefault: ").append(toIndentedString(arrayStringEnumDefault)).append("\n");
     sb.append("    arrayStringDefault: ").append(toIndentedString(arrayStringDefault)).append("\n");
     sb.append("    arrayIntegerDefault: ").append(toIndentedString(arrayIntegerDefault)).append("\n");
@@ -365,6 +402,7 @@ public class DefaultValue {
   static {
     // a set of all properties/fields (JSON key names)
     openapiFields = new HashSet<String>();
+    openapiFields.add("array_string_enum_ref_default");
     openapiFields.add("array_string_enum_default");
     openapiFields.add("array_string_default");
     openapiFields.add("array_integer_default");
@@ -397,6 +435,10 @@ public class DefaultValue {
         }
       }
       // ensure the optional json data is an array if present
+      if (jsonObj.get("array_string_enum_ref_default") != null && !jsonObj.get("array_string_enum_ref_default").isJsonArray()) {
+        throw new IllegalArgumentException(String.format("Expected the field `array_string_enum_ref_default` to be an array in the JSON string but got `%s`", jsonObj.get("array_string_enum_ref_default").toString()));
+      }
+      // ensure the optional json data is an array if present
       if (jsonObj.get("array_string_enum_default") != null && !jsonObj.get("array_string_enum_default").isJsonArray()) {
         throw new IllegalArgumentException(String.format("Expected the field `array_string_enum_default` to be an array in the JSON string but got `%s`", jsonObj.get("array_string_enum_default").toString()));
       }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/StringEnumRef.java

@@ -0,0 +1,75 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import com.google.gson.annotations.SerializedName;
+
+import java.io.IOException;
+import com.google.gson.TypeAdapter;
+import com.google.gson.annotations.JsonAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+
+/**
+ * Gets or Sets StringEnumRef
+ */
+@JsonAdapter(StringEnumRef.Adapter.class)
+public enum StringEnumRef {
+  
+  SUCCESS("success"),
+  
+  FAILURE("failure"),
+  
+  UNCLASSIFIED("unclassified");
+
+  private String value;
+
+  StringEnumRef(String value) {
+    this.value = value;
+  }
+
+  public String getValue() {
+    return value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  public static StringEnumRef fromValue(String value) {
+    for (StringEnumRef b : StringEnumRef.values()) {
+      if (b.value.equals(value)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+  }
+
+  public static class Adapter extends TypeAdapter<StringEnumRef> {
+    @Override
+    public void write(final JsonWriter jsonWriter, final StringEnumRef enumeration) throws IOException {
+      jsonWriter.value(enumeration.getValue());
+    }
+
+    @Override
+    public StringEnumRef read(final JsonReader jsonReader) throws IOException {
+      String value = jsonReader.nextString();
+      return StringEnumRef.fromValue(value);
+    }
+  }
+}
+

samples/client/echo_api/java/okhttp-gson/src/test/java/org/openapitools/client/model/StringEnumRefTest.java

@@ -0,0 +1,33 @@
+/*
+ * Echo Server API
+ * Echo Server API
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * Contact: team@openapitools.org
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import com.google.gson.annotations.SerializedName;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+
+/**
+ * Model tests for StringEnumRef
+ */
+public class StringEnumRefTest {
+    /**
+     * Model tests for StringEnumRef
+     */
+    @Test
+    public void testStringEnumRef() {
+        // TODO: test StringEnumRef
+    }
+
+}