add logic in normalizer to auto fix self-reference schemas (#19849)

samples/client/petstore/java/okhttp-gson-3.1/docs/SelfReferenceAdditionalProperties.md

@@ -0,0 +1,13 @@
+
+
+# SelfReferenceAdditionalProperties
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**dummy** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/okhttp-gson-3.1/docs/SelfReferenceAnyOf.md

@@ -0,0 +1,12 @@
+
+
+# SelfReferenceAnyOf
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+
+
+

samples/client/petstore/java/okhttp-gson-3.1/docs/SelfReferenceOneOf.md

@@ -0,0 +1,12 @@
+
+
+# SelfReferenceOneOf
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+
+
+

samples/client/petstore/java/okhttp-gson-3.1/src/main/java/org/openapitools/client/model/SelfReferenceAdditionalProperties.java

@@ -0,0 +1,286 @@
+/*
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * 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 com.google.gson.TypeAdapter;
+import com.google.gson.annotations.JsonAdapter;
+import com.google.gson.annotations.SerializedName;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
+import java.util.Arrays;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParseException;
+import com.google.gson.TypeAdapterFactory;
+import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.openapitools.client.JSON;
+
+/**
+ * SelfReferenceAdditionalProperties
+ */
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
+public class SelfReferenceAdditionalProperties {
+  public static final String SERIALIZED_NAME_DUMMY = "dummy";
+  @SerializedName(SERIALIZED_NAME_DUMMY)
+  private String dummy;
+
+  public SelfReferenceAdditionalProperties() {
+  }
+
+  public SelfReferenceAdditionalProperties dummy(String dummy) {
+    this.dummy = dummy;
+    return this;
+  }
+
+  /**
+   * Get dummy
+   * @return dummy
+   */
+  @javax.annotation.Nullable
+  public String getDummy() {
+    return dummy;
+  }
+
+  public void setDummy(String dummy) {
+    this.dummy = dummy;
+  }
+
+  /**
+   * A container for additional, undeclared properties.
+   * This is a holder for any undeclared properties as specified with
+   * the 'additionalProperties' keyword in the OAS document.
+   */
+  private Map<String, Object> additionalProperties;
+
+  /**
+   * Set the additional (undeclared) property with the specified name and value.
+   * If the property does not already exist, create it otherwise replace it.
+   *
+   * @param key name of the property
+   * @param value value of the property
+   * @return the SelfReferenceAdditionalProperties instance itself
+   */
+  public SelfReferenceAdditionalProperties putAdditionalProperty(String key, Object value) {
+    if (this.additionalProperties == null) {
+        this.additionalProperties = new HashMap<String, Object>();
+    }
+    this.additionalProperties.put(key, value);
+    return this;
+  }
+
+  /**
+   * Return the additional (undeclared) property.
+   *
+   * @return a map of objects
+   */
+  public Map<String, Object> getAdditionalProperties() {
+    return additionalProperties;
+  }
+
+  /**
+   * Return the additional (undeclared) property with the specified name.
+   *
+   * @param key name of the property
+   * @return an object
+   */
+  public Object getAdditionalProperty(String key) {
+    if (this.additionalProperties == null) {
+        return null;
+    }
+    return this.additionalProperties.get(key);
+  }
+
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    SelfReferenceAdditionalProperties selfReferenceAdditionalProperties = (SelfReferenceAdditionalProperties) o;
+    return Objects.equals(this.dummy, selfReferenceAdditionalProperties.dummy)&&
+        Objects.equals(this.additionalProperties, selfReferenceAdditionalProperties.additionalProperties);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(dummy, additionalProperties);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class SelfReferenceAdditionalProperties {\n");
+    sb.append("    dummy: ").append(toIndentedString(dummy)).append("\n");
+    sb.append("    additionalProperties: ").append(toIndentedString(additionalProperties)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+
+  public static HashSet<String> openapiFields;
+  public static HashSet<String> openapiRequiredFields;
+
+  static {
+    // a set of all properties/fields (JSON key names)
+    openapiFields = new HashSet<String>();
+    openapiFields.add("dummy");
+
+    // a set of required properties/fields (JSON key names)
+    openapiRequiredFields = new HashSet<String>();
+  }
+
+  /**
+   * Validates the JSON Element and throws an exception if issues found
+   *
+   * @param jsonElement JSON Element
+   * @throws IOException if the JSON Element is invalid with respect to SelfReferenceAdditionalProperties
+   */
+  public static void validateJsonElement(JsonElement jsonElement) throws IOException {
+      if (jsonElement == null) {
+        if (!SelfReferenceAdditionalProperties.openapiRequiredFields.isEmpty()) { // has required fields but JSON element is null
+          throw new IllegalArgumentException(String.format("The required field(s) %s in SelfReferenceAdditionalProperties is not found in the empty JSON string", SelfReferenceAdditionalProperties.openapiRequiredFields.toString()));
+        }
+      }
+        JsonObject jsonObj = jsonElement.getAsJsonObject();
+      if ((jsonObj.get("dummy") != null && !jsonObj.get("dummy").isJsonNull()) && !jsonObj.get("dummy").isJsonPrimitive()) {
+        throw new IllegalArgumentException(String.format("Expected the field `dummy` to be a primitive type in the JSON string but got `%s`", jsonObj.get("dummy").toString()));
+      }
+  }
+
+  public static class CustomTypeAdapterFactory implements TypeAdapterFactory {
+    @SuppressWarnings("unchecked")
+    @Override
+    public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
+       if (!SelfReferenceAdditionalProperties.class.isAssignableFrom(type.getRawType())) {
+         return null; // this class only serializes 'SelfReferenceAdditionalProperties' and its subtypes
+       }
+       final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
+       final TypeAdapter<SelfReferenceAdditionalProperties> thisAdapter
+                        = gson.getDelegateAdapter(this, TypeToken.get(SelfReferenceAdditionalProperties.class));
+
+       return (TypeAdapter<T>) new TypeAdapter<SelfReferenceAdditionalProperties>() {
+           @Override
+           public void write(JsonWriter out, SelfReferenceAdditionalProperties value) throws IOException {
+             JsonObject obj = thisAdapter.toJsonTree(value).getAsJsonObject();
+             obj.remove("additionalProperties");
+             // serialize additional properties
+             if (value.getAdditionalProperties() != null) {
+               for (Map.Entry<String, Object> entry : value.getAdditionalProperties().entrySet()) {
+                 if (entry.getValue() instanceof String)
+                   obj.addProperty(entry.getKey(), (String) entry.getValue());
+                 else if (entry.getValue() instanceof Number)
+                   obj.addProperty(entry.getKey(), (Number) entry.getValue());
+                 else if (entry.getValue() instanceof Boolean)
+                   obj.addProperty(entry.getKey(), (Boolean) entry.getValue());
+                 else if (entry.getValue() instanceof Character)
+                   obj.addProperty(entry.getKey(), (Character) entry.getValue());
+                 else {
+                   JsonElement jsonElement = gson.toJsonTree(entry.getValue());
+                   if (jsonElement.isJsonArray()) {
+                     obj.add(entry.getKey(), jsonElement.getAsJsonArray());
+                   } else {
+                     obj.add(entry.getKey(), jsonElement.getAsJsonObject());
+                   }
+                 }
+               }
+             }
+             elementAdapter.write(out, obj);
+           }
+
+           @Override
+           public SelfReferenceAdditionalProperties read(JsonReader in) throws IOException {
+             JsonElement jsonElement = elementAdapter.read(in);
+             validateJsonElement(jsonElement);
+             JsonObject jsonObj = jsonElement.getAsJsonObject();
+             // store additional fields in the deserialized instance
+             SelfReferenceAdditionalProperties instance = thisAdapter.fromJsonTree(jsonObj);
+             for (Map.Entry<String, JsonElement> entry : jsonObj.entrySet()) {
+               if (!openapiFields.contains(entry.getKey())) {
+                 if (entry.getValue().isJsonPrimitive()) { // primitive type
+                   if (entry.getValue().getAsJsonPrimitive().isString())
+                     instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsString());
+                   else if (entry.getValue().getAsJsonPrimitive().isNumber())
+                     instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsNumber());
+                   else if (entry.getValue().getAsJsonPrimitive().isBoolean())
+                     instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsBoolean());
+                   else
+                     throw new IllegalArgumentException(String.format("The field `%s` has unknown primitive type. Value: %s", entry.getKey(), entry.getValue().toString()));
+                 } else if (entry.getValue().isJsonArray()) {
+                     instance.putAdditionalProperty(entry.getKey(), gson.fromJson(entry.getValue(), List.class));
+                 } else { // JSON object
+                     instance.putAdditionalProperty(entry.getKey(), gson.fromJson(entry.getValue(), HashMap.class));
+                 }
+               }
+             }
+             return instance;
+           }
+
+       }.nullSafe();
+    }
+  }
+
+  /**
+   * Create an instance of SelfReferenceAdditionalProperties given an JSON string
+   *
+   * @param jsonString JSON string
+   * @return An instance of SelfReferenceAdditionalProperties
+   * @throws IOException if the JSON string is invalid with respect to SelfReferenceAdditionalProperties
+   */
+  public static SelfReferenceAdditionalProperties fromJson(String jsonString) throws IOException {
+    return JSON.getGson().fromJson(jsonString, SelfReferenceAdditionalProperties.class);
+  }
+
+  /**
+   * Convert an instance of SelfReferenceAdditionalProperties to an JSON string
+   *
+   * @return JSON string
+   */
+  public String toJson() {
+    return JSON.getGson().toJson(this);
+  }
+}
+

samples/client/petstore/java/okhttp-gson-3.1/src/main/java/org/openapitools/client/model/SelfReferenceAnyOf.java

@@ -0,0 +1,266 @@
+/*
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * 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.io.IOException;
+import java.lang.reflect.Type;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonParseException;
+import com.google.gson.TypeAdapter;
+import com.google.gson.TypeAdapterFactory;
+import com.google.gson.reflect.TypeToken;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.annotations.JsonAdapter;
+import com.google.gson.annotations.SerializedName;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonSerializationContext;
+import com.google.gson.JsonSerializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonParseException;
+
+import org.openapitools.client.JSON;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
+public class SelfReferenceAnyOf extends AbstractOpenApiSchema {
+    private static final Logger log = Logger.getLogger(SelfReferenceAnyOf.class.getName());
+
+    public static class CustomTypeAdapterFactory implements TypeAdapterFactory {
+        @SuppressWarnings("unchecked")
+        @Override
+        public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
+            if (!SelfReferenceAnyOf.class.isAssignableFrom(type.getRawType())) {
+                return null; // this class only serializes 'SelfReferenceAnyOf' and its subtypes
+            }
+            final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
+            final TypeAdapter<String> adapterString = gson.getDelegateAdapter(this, TypeToken.get(String.class));
+            final TypeAdapter<Boolean> adapterBoolean = gson.getDelegateAdapter(this, TypeToken.get(Boolean.class));
+
+            return (TypeAdapter<T>) new TypeAdapter<SelfReferenceAnyOf>() {
+                @Override
+                public void write(JsonWriter out, SelfReferenceAnyOf value) throws IOException {
+                    if (value == null || value.getActualInstance() == null) {
+                        elementAdapter.write(out, null);
+                        return;
+                    }
+
+                    // check if the actual instance is of the type `String`
+                    if (value.getActualInstance() instanceof String) {
+                        JsonPrimitive primitive = adapterString.toJsonTree((String)value.getActualInstance()).getAsJsonPrimitive();
+                        elementAdapter.write(out, primitive);
+                        return;
+                    }
+                    // check if the actual instance is of the type `Boolean`
+                    if (value.getActualInstance() instanceof Boolean) {
+                        JsonPrimitive primitive = adapterBoolean.toJsonTree((Boolean)value.getActualInstance()).getAsJsonPrimitive();
+                        elementAdapter.write(out, primitive);
+                        return;
+                    }
+                    throw new IOException("Failed to serialize as the type doesn't match anyOf schemas: Boolean, String");
+                }
+
+                @Override
+                public SelfReferenceAnyOf read(JsonReader in) throws IOException {
+                    Object deserialized = null;
+                    JsonElement jsonElement = elementAdapter.read(in);
+
+                    ArrayList<String> errorMessages = new ArrayList<>();
+                    TypeAdapter actualAdapter = elementAdapter;
+
+                    // deserialize String
+                    try {
+                        // validate the JSON object to see if any exception is thrown
+                        if (!jsonElement.getAsJsonPrimitive().isString()) {
+                            throw new IllegalArgumentException(String.format("Expected json element to be of type String in the JSON string but got `%s`", jsonElement.toString()));
+                        }
+                        actualAdapter = adapterString;
+                        SelfReferenceAnyOf ret = new SelfReferenceAnyOf();
+                        ret.setActualInstance(actualAdapter.fromJsonTree(jsonElement));
+                        return ret;
+                    } catch (Exception e) {
+                        // deserialization failed, continue
+                        errorMessages.add(String.format("Deserialization for String failed with `%s`.", e.getMessage()));
+                        log.log(Level.FINER, "Input data does not match schema 'String'", e);
+                    }
+                    // deserialize Boolean
+                    try {
+                        // validate the JSON object to see if any exception is thrown
+                        if (!jsonElement.getAsJsonPrimitive().isBoolean()) {
+                            throw new IllegalArgumentException(String.format("Expected json element to be of type Boolean in the JSON string but got `%s`", jsonElement.toString()));
+                        }
+                        actualAdapter = adapterBoolean;
+                        SelfReferenceAnyOf ret = new SelfReferenceAnyOf();
+                        ret.setActualInstance(actualAdapter.fromJsonTree(jsonElement));
+                        return ret;
+                    } catch (Exception e) {
+                        // deserialization failed, continue
+                        errorMessages.add(String.format("Deserialization for Boolean failed with `%s`.", e.getMessage()));
+                        log.log(Level.FINER, "Input data does not match schema 'Boolean'", e);
+                    }
+
+                    throw new IOException(String.format("Failed deserialization for SelfReferenceAnyOf: no class matches result, expected at least 1. Detailed failure message for anyOf schemas: %s. JSON: %s", errorMessages, jsonElement.toString()));
+                }
+            }.nullSafe();
+        }
+    }
+
+    // store a list of schema names defined in anyOf
+    public static final Map<String, Class<?>> schemas = new HashMap<String, Class<?>>();
+
+    public SelfReferenceAnyOf() {
+        super("anyOf", Boolean.FALSE);
+    }
+
+    public SelfReferenceAnyOf(Object o) {
+        super("anyOf", Boolean.FALSE);
+        setActualInstance(o);
+    }
+
+    static {
+        schemas.put("String", String.class);
+        schemas.put("Boolean", Boolean.class);
+    }
+
+    @Override
+    public Map<String, Class<?>> getSchemas() {
+        return SelfReferenceAnyOf.schemas;
+    }
+
+    /**
+     * Set the instance that matches the anyOf child schema, check
+     * the instance parameter is valid against the anyOf child schemas:
+     * Boolean, String
+     *
+     * It could be an instance of the 'anyOf' schemas.
+     */
+    @Override
+    public void setActualInstance(Object instance) {
+        if (instance instanceof String) {
+            super.setActualInstance(instance);
+            return;
+        }
+
+        if (instance instanceof Boolean) {
+            super.setActualInstance(instance);
+            return;
+        }
+
+        throw new RuntimeException("Invalid instance type. Must be Boolean, String");
+    }
+
+    /**
+     * Get the actual instance, which can be the following:
+     * Boolean, String
+     *
+     * @return The actual instance (Boolean, String)
+     */
+    @SuppressWarnings("unchecked")
+    @Override
+    public Object getActualInstance() {
+        return super.getActualInstance();
+    }
+
+    /**
+     * Get the actual instance of `String`. If the actual instance is not `String`,
+     * the ClassCastException will be thrown.
+     *
+     * @return The actual instance of `String`
+     * @throws ClassCastException if the instance is not `String`
+     */
+    public String getString() throws ClassCastException {
+        return (String)super.getActualInstance();
+    }
+
+    /**
+     * Get the actual instance of `Boolean`. If the actual instance is not `Boolean`,
+     * the ClassCastException will be thrown.
+     *
+     * @return The actual instance of `Boolean`
+     * @throws ClassCastException if the instance is not `Boolean`
+     */
+    public Boolean getBoolean() throws ClassCastException {
+        return (Boolean)super.getActualInstance();
+    }
+
+    /**
+     * Validates the JSON Element and throws an exception if issues found
+     *
+     * @param jsonElement JSON Element
+     * @throws IOException if the JSON Element is invalid with respect to SelfReferenceAnyOf
+     */
+    public static void validateJsonElement(JsonElement jsonElement) throws IOException {
+        // validate anyOf schemas one by one
+        ArrayList<String> errorMessages = new ArrayList<>();
+        // validate the json string with String
+        try {
+            if (!jsonElement.getAsJsonPrimitive().isString()) {
+                throw new IllegalArgumentException(String.format("Expected json element to be of type String in the JSON string but got `%s`", jsonElement.toString()));
+            }
+            return;
+        } catch (Exception e) {
+            errorMessages.add(String.format("Deserialization for String failed with `%s`.", e.getMessage()));
+            // continue to the next one
+        }
+        // validate the json string with Boolean
+        try {
+            if (!jsonElement.getAsJsonPrimitive().isBoolean()) {
+                throw new IllegalArgumentException(String.format("Expected json element to be of type Boolean in the JSON string but got `%s`", jsonElement.toString()));
+            }
+            return;
+        } catch (Exception e) {
+            errorMessages.add(String.format("Deserialization for Boolean failed with `%s`.", e.getMessage()));
+            // continue to the next one
+        }
+        throw new IOException(String.format("The JSON string is invalid for SelfReferenceAnyOf with anyOf schemas: Boolean, String. no class match the result, expected at least 1. Detailed failure message for anyOf schemas: %s. JSON: %s", errorMessages, jsonElement.toString()));
+    }
+
+    /**
+     * Create an instance of SelfReferenceAnyOf given an JSON string
+     *
+     * @param jsonString JSON string
+     * @return An instance of SelfReferenceAnyOf
+     * @throws IOException if the JSON string is invalid with respect to SelfReferenceAnyOf
+     */
+    public static SelfReferenceAnyOf fromJson(String jsonString) throws IOException {
+        return JSON.getGson().fromJson(jsonString, SelfReferenceAnyOf.class);
+    }
+
+    /**
+     * Convert an instance of SelfReferenceAnyOf to an JSON string
+     *
+     * @return JSON string
+     */
+    public String toJson() {
+        return JSON.getGson().toJson(this);
+    }
+}
+

samples/client/petstore/java/okhttp-gson-3.1/src/main/java/org/openapitools/client/model/SelfReferenceOneOf.java

@@ -0,0 +1,274 @@
+/*
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * 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.io.IOException;
+import java.lang.reflect.Type;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonParseException;
+import com.google.gson.TypeAdapter;
+import com.google.gson.TypeAdapterFactory;
+import com.google.gson.reflect.TypeToken;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.annotations.JsonAdapter;
+import com.google.gson.annotations.SerializedName;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonSerializationContext;
+import com.google.gson.JsonSerializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonParseException;
+
+import org.openapitools.client.JSON;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
+public class SelfReferenceOneOf extends AbstractOpenApiSchema {
+    private static final Logger log = Logger.getLogger(SelfReferenceOneOf.class.getName());
+
+    public static class CustomTypeAdapterFactory implements TypeAdapterFactory {
+        @SuppressWarnings("unchecked")
+        @Override
+        public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
+            if (!SelfReferenceOneOf.class.isAssignableFrom(type.getRawType())) {
+                return null; // this class only serializes 'SelfReferenceOneOf' and its subtypes
+            }
+            final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
+            final TypeAdapter<String> adapterString = gson.getDelegateAdapter(this, TypeToken.get(String.class));
+            final TypeAdapter<Boolean> adapterBoolean = gson.getDelegateAdapter(this, TypeToken.get(Boolean.class));
+
+            return (TypeAdapter<T>) new TypeAdapter<SelfReferenceOneOf>() {
+                @Override
+                public void write(JsonWriter out, SelfReferenceOneOf value) throws IOException {
+                    if (value == null || value.getActualInstance() == null) {
+                        elementAdapter.write(out, null);
+                        return;
+                    }
+
+                    // check if the actual instance is of the type `String`
+                    if (value.getActualInstance() instanceof String) {
+                        JsonPrimitive primitive = adapterString.toJsonTree((String)value.getActualInstance()).getAsJsonPrimitive();
+                        elementAdapter.write(out, primitive);
+                        return;
+                    }
+                    // check if the actual instance is of the type `Boolean`
+                    if (value.getActualInstance() instanceof Boolean) {
+                        JsonPrimitive primitive = adapterBoolean.toJsonTree((Boolean)value.getActualInstance()).getAsJsonPrimitive();
+                        elementAdapter.write(out, primitive);
+                        return;
+                    }
+                    throw new IOException("Failed to serialize as the type doesn't match oneOf schemas: Boolean, String");
+                }
+
+                @Override
+                public SelfReferenceOneOf read(JsonReader in) throws IOException {
+                    Object deserialized = null;
+                    JsonElement jsonElement = elementAdapter.read(in);
+
+                    int match = 0;
+                    ArrayList<String> errorMessages = new ArrayList<>();
+                    TypeAdapter actualAdapter = elementAdapter;
+
+                    // deserialize String
+                    try {
+                        // validate the JSON object to see if any exception is thrown
+                        if (!jsonElement.getAsJsonPrimitive().isString()) {
+                            throw new IllegalArgumentException(String.format("Expected json element to be of type String in the JSON string but got `%s`", jsonElement.toString()));
+                        }
+                        actualAdapter = adapterString;
+                        match++;
+                        log.log(Level.FINER, "Input data matches schema 'String'");
+                    } catch (Exception e) {
+                        // deserialization failed, continue
+                        errorMessages.add(String.format("Deserialization for String failed with `%s`.", e.getMessage()));
+                        log.log(Level.FINER, "Input data does not match schema 'String'", e);
+                    }
+                    // deserialize Boolean
+                    try {
+                        // validate the JSON object to see if any exception is thrown
+                        if (!jsonElement.getAsJsonPrimitive().isBoolean()) {
+                            throw new IllegalArgumentException(String.format("Expected json element to be of type Boolean in the JSON string but got `%s`", jsonElement.toString()));
+                        }
+                        actualAdapter = adapterBoolean;
+                        match++;
+                        log.log(Level.FINER, "Input data matches schema 'Boolean'");
+                    } catch (Exception e) {
+                        // deserialization failed, continue
+                        errorMessages.add(String.format("Deserialization for Boolean failed with `%s`.", e.getMessage()));
+                        log.log(Level.FINER, "Input data does not match schema 'Boolean'", e);
+                    }
+
+                    if (match == 1) {
+                        SelfReferenceOneOf ret = new SelfReferenceOneOf();
+                        ret.setActualInstance(actualAdapter.fromJsonTree(jsonElement));
+                        return ret;
+                    }
+
+                    throw new IOException(String.format("Failed deserialization for SelfReferenceOneOf: %d classes match result, expected 1. Detailed failure message for oneOf schemas: %s. JSON: %s", match, errorMessages, jsonElement.toString()));
+                }
+            }.nullSafe();
+        }
+    }
+
+    // store a list of schema names defined in oneOf
+    public static final Map<String, Class<?>> schemas = new HashMap<String, Class<?>>();
+
+    public SelfReferenceOneOf() {
+        super("oneOf", Boolean.FALSE);
+    }
+
+    public SelfReferenceOneOf(Object o) {
+        super("oneOf", Boolean.FALSE);
+        setActualInstance(o);
+    }
+
+    static {
+        schemas.put("String", String.class);
+        schemas.put("Boolean", Boolean.class);
+    }
+
+    @Override
+    public Map<String, Class<?>> getSchemas() {
+        return SelfReferenceOneOf.schemas;
+    }
+
+    /**
+     * Set the instance that matches the oneOf child schema, check
+     * the instance parameter is valid against the oneOf child schemas:
+     * Boolean, String
+     *
+     * It could be an instance of the 'oneOf' schemas.
+     */
+    @Override
+    public void setActualInstance(Object instance) {
+        if (instance instanceof String) {
+            super.setActualInstance(instance);
+            return;
+        }
+
+        if (instance instanceof Boolean) {
+            super.setActualInstance(instance);
+            return;
+        }
+
+        throw new RuntimeException("Invalid instance type. Must be Boolean, String");
+    }
+
+    /**
+     * Get the actual instance, which can be the following:
+     * Boolean, String
+     *
+     * @return The actual instance (Boolean, String)
+     */
+    @SuppressWarnings("unchecked")
+    @Override
+    public Object getActualInstance() {
+        return super.getActualInstance();
+    }
+
+    /**
+     * Get the actual instance of `String`. If the actual instance is not `String`,
+     * the ClassCastException will be thrown.
+     *
+     * @return The actual instance of `String`
+     * @throws ClassCastException if the instance is not `String`
+     */
+    public String getString() throws ClassCastException {
+        return (String)super.getActualInstance();
+    }
+
+    /**
+     * Get the actual instance of `Boolean`. If the actual instance is not `Boolean`,
+     * the ClassCastException will be thrown.
+     *
+     * @return The actual instance of `Boolean`
+     * @throws ClassCastException if the instance is not `Boolean`
+     */
+    public Boolean getBoolean() throws ClassCastException {
+        return (Boolean)super.getActualInstance();
+    }
+
+    /**
+     * Validates the JSON Element and throws an exception if issues found
+     *
+     * @param jsonElement JSON Element
+     * @throws IOException if the JSON Element is invalid with respect to SelfReferenceOneOf
+     */
+    public static void validateJsonElement(JsonElement jsonElement) throws IOException {
+        // validate oneOf schemas one by one
+        int validCount = 0;
+        ArrayList<String> errorMessages = new ArrayList<>();
+        // validate the json string with String
+        try {
+            if (!jsonElement.getAsJsonPrimitive().isString()) {
+                throw new IllegalArgumentException(String.format("Expected json element to be of type String in the JSON string but got `%s`", jsonElement.toString()));
+            }
+            validCount++;
+        } catch (Exception e) {
+            errorMessages.add(String.format("Deserialization for String failed with `%s`.", e.getMessage()));
+            // continue to the next one
+        }
+        // validate the json string with Boolean
+        try {
+            if (!jsonElement.getAsJsonPrimitive().isBoolean()) {
+                throw new IllegalArgumentException(String.format("Expected json element to be of type Boolean in the JSON string but got `%s`", jsonElement.toString()));
+            }
+            validCount++;
+        } catch (Exception e) {
+            errorMessages.add(String.format("Deserialization for Boolean failed with `%s`.", e.getMessage()));
+            // continue to the next one
+        }
+        if (validCount != 1) {
+            throw new IOException(String.format("The JSON string is invalid for SelfReferenceOneOf with oneOf schemas: Boolean, String. %d class(es) match the result, expected 1. Detailed failure message for oneOf schemas: %s. JSON: %s", validCount, errorMessages, jsonElement.toString()));
+        }
+    }
+
+    /**
+     * Create an instance of SelfReferenceOneOf given an JSON string
+     *
+     * @param jsonString JSON string
+     * @return An instance of SelfReferenceOneOf
+     * @throws IOException if the JSON string is invalid with respect to SelfReferenceOneOf
+     */
+    public static SelfReferenceOneOf fromJson(String jsonString) throws IOException {
+        return JSON.getGson().fromJson(jsonString, SelfReferenceOneOf.class);
+    }
+
+    /**
+     * Convert an instance of SelfReferenceOneOf to an JSON string
+     *
+     * @return JSON string
+     */
+    public String toJson() {
+        return JSON.getGson().toJson(this);
+    }
+}
+

samples/client/petstore/java/okhttp-gson-3.1/src/test/java/org/openapitools/client/model/SelfReferenceAdditionalPropertiesTest.java

@@ -0,0 +1,49 @@
+/*
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * 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.TypeAdapter;
+import com.google.gson.annotations.JsonAdapter;
+import com.google.gson.annotations.SerializedName;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
+import java.util.Arrays;
+import org.openapitools.client.model.SelfReferenceAdditionalProperties;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Model tests for SelfReferenceAdditionalProperties
+ */
+public class SelfReferenceAdditionalPropertiesTest {
+    private final SelfReferenceAdditionalProperties model = new SelfReferenceAdditionalProperties();
+
+    /**
+     * Model tests for SelfReferenceAdditionalProperties
+     */
+    @Test
+    public void testSelfReferenceAdditionalProperties() {
+        // TODO: test SelfReferenceAdditionalProperties
+    }
+
+    /**
+     * Test the property 'dummy'
+     */
+    @Test
+    public void dummyTest() {
+        // TODO: test dummy
+    }
+
+}

samples/client/petstore/java/okhttp-gson-3.1/src/test/java/org/openapitools/client/model/SelfReferenceAnyOfTest.java

@@ -0,0 +1,33 @@
+/*
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * 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.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Model tests for SelfReferenceAnyOf
+ */
+public class SelfReferenceAnyOfTest {
+    private final SelfReferenceAnyOf model = new SelfReferenceAnyOf();
+
+    /**
+     * Model tests for SelfReferenceAnyOf
+     */
+    @Test
+    public void testSelfReferenceAnyOf() {
+        // TODO: test SelfReferenceAnyOf
+    }
+
+}

samples/client/petstore/java/okhttp-gson-3.1/src/test/java/org/openapitools/client/model/SelfReferenceOneOfTest.java

@@ -0,0 +1,33 @@
+/*
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * 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.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Model tests for SelfReferenceOneOf
+ */
+public class SelfReferenceOneOfTest {
+    private final SelfReferenceOneOf model = new SelfReferenceOneOf();
+
+    /**
+     * Model tests for SelfReferenceOneOf
+     */
+    @Test
+    public void testSelfReferenceOneOf() {
+        // TODO: test SelfReferenceOneOf
+    }
+
+}