add test case for nullable parent property (#16552)

* add nullable case to spring test spec

* generate samples for changed spring input

* add nullable case to general test spec

* generate samples for changed general input

* generate samples again

* generates samples again

* re-build from new sources, generates samples again

samples/client/petstore/spring-http-interface-reactive/.openapi-generator/FILES

@@ -23,6 +23,7 @@ src/main/java/org/openapitools/model/BigCat.java
 src/main/java/org/openapitools/model/Capitalization.java
 src/main/java/org/openapitools/model/Cat.java
 src/main/java/org/openapitools/model/Category.java
+src/main/java/org/openapitools/model/ChildWithNullable.java
 src/main/java/org/openapitools/model/ClassModel.java
 src/main/java/org/openapitools/model/Client.java
 src/main/java/org/openapitools/model/ContainerDefaultValue.java
@@ -46,6 +47,7 @@ src/main/java/org/openapitools/model/NumberOnly.java
 src/main/java/org/openapitools/model/Order.java
 src/main/java/org/openapitools/model/OuterComposite.java
 src/main/java/org/openapitools/model/OuterEnum.java
+src/main/java/org/openapitools/model/ParentWithNullable.java
 src/main/java/org/openapitools/model/Pet.java
 src/main/java/org/openapitools/model/ReadOnlyFirst.java
 src/main/java/org/openapitools/model/ResponseObjectWithDifferentFieldNames.java

samples/client/petstore/spring-http-interface-reactive/src/main/java/org/openapitools/api/FakeApi.java

@@ -6,6 +6,7 @@
 package org.openapitools.api;
 
 import java.math.BigDecimal;
+import org.openapitools.model.ChildWithNullable;
 import org.openapitools.model.Client;
 import org.springframework.format.annotation.DateTimeFormat;
 import org.openapitools.model.FileSchemaTestClass;
@@ -321,6 +322,24 @@ public interface FakeApi {
     );
 
 
+    /**
+     * POST /fake/nullable : test nullable parent property
+     * 
+     *
+     * @param childWithNullable request body (required)
+     * @return successful operation (status code 200)
+     */
+    @HttpExchange(
+        method = "POST",
+        value = "/fake/nullable",
+        accept = "application/json",
+        contentType = "application/json"
+    )
+    Mono<ResponseEntity<Void>> testNullable(
+         @RequestBody Mono<ChildWithNullable> childWithNullable
+    );
+
+
     /**
      * PUT /fake/test-query-parameters
      * To test the collection format in query parameters

samples/client/petstore/spring-http-interface-reactive/src/main/java/org/openapitools/model/ChildWithNullable.java

@@ -0,0 +1,111 @@
+package org.openapitools.model;
+
+import java.net.URI;
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.util.Arrays;
+import org.openapitools.jackson.nullable.JsonNullable;
+import org.openapitools.model.ParentWithNullable;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.time.OffsetDateTime;
+import jakarta.validation.constraints.NotNull;
+
+
+import java.util.*;
+import jakarta.annotation.Generated;
+
+/**
+ * ChildWithNullable
+ */
+
+
+@Generated(value = "org.openapitools.codegen.languages.SpringCodegen")
+public class ChildWithNullable extends ParentWithNullable {
+
+  private String otherProperty;
+
+  public ChildWithNullable otherProperty(String otherProperty) {
+    this.otherProperty = otherProperty;
+    return this;
+  }
+
+  /**
+   * Get otherProperty
+   * @return otherProperty
+  */
+  
+  @JsonProperty("otherProperty")
+  public String getOtherProperty() {
+    return otherProperty;
+  }
+
+  public void setOtherProperty(String otherProperty) {
+    this.otherProperty = otherProperty;
+  }
+
+
+  public ChildWithNullable type(TypeEnum type) {
+    super.type(type);
+    return this;
+  }
+
+  public ChildWithNullable nullableProperty(String nullableProperty) {
+    super.nullableProperty(nullableProperty);
+    return this;
+  }
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ChildWithNullable childWithNullable = (ChildWithNullable) o;
+    return Objects.equals(this.otherProperty, childWithNullable.otherProperty) &&
+        super.equals(o);
+  }
+
+  private static <T> boolean equalsNullable(JsonNullable<T> a, JsonNullable<T> b) {
+    return a == b || (a != null && b != null && a.isPresent() && b.isPresent() && Objects.deepEquals(a.get(), b.get()));
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(otherProperty, super.hashCode());
+  }
+
+  private static <T> int hashCodeNullable(JsonNullable<T> a) {
+    if (a == null) {
+      return 1;
+    }
+    return a.isPresent() ? Arrays.deepHashCode(new Object[]{a.get()}) : 31;
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ChildWithNullable {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("    otherProperty: ").append(toIndentedString(otherProperty)).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    ");
+  }
+}
+

samples/client/petstore/spring-http-interface-reactive/src/main/java/org/openapitools/model/ParentWithNullable.java

@@ -0,0 +1,163 @@
+package org.openapitools.model;
+
+import java.net.URI;
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.util.Arrays;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.util.NoSuchElementException;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.time.OffsetDateTime;
+import jakarta.validation.constraints.NotNull;
+
+
+import java.util.*;
+import jakarta.annotation.Generated;
+
+/**
+ * ParentWithNullable
+ */
+
+@JsonIgnoreProperties(
+  value = "type", // ignore manually set type, it will be automatically generated by Jackson during serialization
+  allowSetters = true // allows the type to be set during deserialization
+)
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type", visible = true)
+@JsonSubTypes({
+  @JsonSubTypes.Type(value = ChildWithNullable.class, name = "ChildWithNullable")
+})
+
+@Generated(value = "org.openapitools.codegen.languages.SpringCodegen")
+public class ParentWithNullable {
+
+  /**
+   * Gets or Sets type
+   */
+  public enum TypeEnum {
+    CHILDWITHNULLABLE("ChildWithNullable");
+
+    private String value;
+
+    TypeEnum(String value) {
+      this.value = value;
+    }
+
+    @JsonValue
+    public String getValue() {
+      return value;
+    }
+
+    @Override
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static TypeEnum fromValue(String value) {
+      for (TypeEnum b : TypeEnum.values()) {
+        if (b.value.equals(value)) {
+          return b;
+        }
+      }
+      throw new IllegalArgumentException("Unexpected value '" + value + "'");
+    }
+  }
+
+  private TypeEnum type;
+
+  private JsonNullable<String> nullableProperty = JsonNullable.<String>undefined();
+
+  public ParentWithNullable type(TypeEnum type) {
+    this.type = type;
+    return this;
+  }
+
+  /**
+   * Get type
+   * @return type
+  */
+  
+  @JsonProperty("type")
+  public TypeEnum getType() {
+    return type;
+  }
+
+  public void setType(TypeEnum type) {
+    this.type = type;
+  }
+
+  public ParentWithNullable nullableProperty(String nullableProperty) {
+    this.nullableProperty = JsonNullable.of(nullableProperty);
+    return this;
+  }
+
+  /**
+   * Get nullableProperty
+   * @return nullableProperty
+  */
+  
+  @JsonProperty("nullableProperty")
+  public JsonNullable<String> getNullableProperty() {
+    return nullableProperty;
+  }
+
+  public void setNullableProperty(JsonNullable<String> nullableProperty) {
+    this.nullableProperty = nullableProperty;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ParentWithNullable parentWithNullable = (ParentWithNullable) o;
+    return Objects.equals(this.type, parentWithNullable.type) &&
+        equalsNullable(this.nullableProperty, parentWithNullable.nullableProperty);
+  }
+
+  private static <T> boolean equalsNullable(JsonNullable<T> a, JsonNullable<T> b) {
+    return a == b || (a != null && b != null && a.isPresent() && b.isPresent() && Objects.deepEquals(a.get(), b.get()));
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(type, hashCodeNullable(nullableProperty));
+  }
+
+  private static <T> int hashCodeNullable(JsonNullable<T> a) {
+    if (a == null) {
+      return 1;
+    }
+    return a.isPresent() ? Arrays.deepHashCode(new Object[]{a.get()}) : 31;
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ParentWithNullable {\n");
+    sb.append("    type: ").append(toIndentedString(type)).append("\n");
+    sb.append("    nullableProperty: ").append(toIndentedString(nullableProperty)).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    ");
+  }
+}
+