[Java][native][apache-httpclient] Update toUrlQueryString to support form style for object (#14478)

* update toUrlQueryString

* add new files

* minor bug fixes

* support object in query parameter - java apache httpclient

* rename variable - java native

* update samples

* fix try catch

samples/client/echo_api/java/native/src/main/java/org/openapitools/client/api/QueryApi.java

@@ -17,6 +17,7 @@ import org.openapitools.client.ApiException;
 import org.openapitools.client.ApiResponse;
 import org.openapitools.client.Pair;
 
+import org.openapitools.client.model.DataQuery;
 import org.openapitools.client.model.Pet;
 import org.openapitools.client.model.TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter;
 import org.openapitools.client.model.TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter;
@@ -143,7 +144,7 @@ public class QueryApi {
     String localVarPath = "/query/integer/boolean/string";
 
     List<Pair> localVarQueryParams = new ArrayList<>();
-    StringJoiner localVarQueryDeepObjectStringJoiner = new StringJoiner("&");
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
     String localVarQueryParameterBaseName;
     localVarQueryParameterBaseName = "integer_query";
     localVarQueryParams.addAll(ApiClient.parameterToPairs("integer_query", integerQuery));
@@ -152,11 +153,11 @@ public class QueryApi {
     localVarQueryParameterBaseName = "string_query";
     localVarQueryParams.addAll(ApiClient.parameterToPairs("string_query", stringQuery));
 
-    if (!localVarQueryParams.isEmpty() || localVarQueryDeepObjectStringJoiner.length() != 0) {
+    if (!localVarQueryParams.isEmpty() || localVarQueryStringJoiner.length() != 0) {
       StringJoiner queryJoiner = new StringJoiner("&");
       localVarQueryParams.forEach(p -> queryJoiner.add(p.getName() + '=' + p.getValue()));
-      if (localVarQueryDeepObjectStringJoiner.length() != 0) {
-        queryJoiner.add(localVarQueryDeepObjectStringJoiner.toString());
+      if (localVarQueryStringJoiner.length() != 0) {
+        queryJoiner.add(localVarQueryStringJoiner.toString());
       }
       localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath + '?' + queryJoiner.toString()));
     } else {
@@ -237,18 +238,18 @@ public class QueryApi {
     String localVarPath = "/query/style_deepObject/explode_true/object";
 
     List<Pair> localVarQueryParams = new ArrayList<>();
-    StringJoiner localVarQueryDeepObjectStringJoiner = new StringJoiner("&");
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
     String localVarQueryParameterBaseName;
     localVarQueryParameterBaseName = "query_object";
     if (queryObject != null) {
-      localVarQueryDeepObjectStringJoiner.add(queryObject.toUrlQueryString("query_object"));
+      localVarQueryStringJoiner.add(queryObject.toUrlQueryString("query_object"));
     }
 
-    if (!localVarQueryParams.isEmpty() || localVarQueryDeepObjectStringJoiner.length() != 0) {
+    if (!localVarQueryParams.isEmpty() || localVarQueryStringJoiner.length() != 0) {
       StringJoiner queryJoiner = new StringJoiner("&");
       localVarQueryParams.forEach(p -> queryJoiner.add(p.getName() + '=' + p.getValue()));
-      if (localVarQueryDeepObjectStringJoiner.length() != 0) {
-        queryJoiner.add(localVarQueryDeepObjectStringJoiner.toString());
+      if (localVarQueryStringJoiner.length() != 0) {
+        queryJoiner.add(localVarQueryStringJoiner.toString());
       }
       localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath + '?' + queryJoiner.toString()));
     } else {
@@ -329,18 +330,18 @@ public class QueryApi {
     String localVarPath = "/query/style_deepObject/explode_true/object/allOf";
 
     List<Pair> localVarQueryParams = new ArrayList<>();
-    StringJoiner localVarQueryDeepObjectStringJoiner = new StringJoiner("&");
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
     String localVarQueryParameterBaseName;
     localVarQueryParameterBaseName = "query_object";
     if (queryObject != null) {
-      localVarQueryDeepObjectStringJoiner.add(queryObject.toUrlQueryString("query_object"));
+      localVarQueryStringJoiner.add(queryObject.toUrlQueryString("query_object"));
     }
 
-    if (!localVarQueryParams.isEmpty() || localVarQueryDeepObjectStringJoiner.length() != 0) {
+    if (!localVarQueryParams.isEmpty() || localVarQueryStringJoiner.length() != 0) {
       StringJoiner queryJoiner = new StringJoiner("&");
       localVarQueryParams.forEach(p -> queryJoiner.add(p.getName() + '=' + p.getValue()));
-      if (localVarQueryDeepObjectStringJoiner.length() != 0) {
-        queryJoiner.add(localVarQueryDeepObjectStringJoiner.toString());
+      if (localVarQueryStringJoiner.length() != 0) {
+        queryJoiner.add(localVarQueryStringJoiner.toString());
       }
       localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath + '?' + queryJoiner.toString()));
     } else {
@@ -421,16 +422,16 @@ public class QueryApi {
     String localVarPath = "/query/style_form/explode_true/array_string";
 
     List<Pair> localVarQueryParams = new ArrayList<>();
-    StringJoiner localVarQueryDeepObjectStringJoiner = new StringJoiner("&");
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
     String localVarQueryParameterBaseName;
     localVarQueryParameterBaseName = "query_object";
     localVarQueryParams.addAll(ApiClient.parameterToPairs("multi", "values", queryObject.getValues()));
 
-    if (!localVarQueryParams.isEmpty() || localVarQueryDeepObjectStringJoiner.length() != 0) {
+    if (!localVarQueryParams.isEmpty() || localVarQueryStringJoiner.length() != 0) {
       StringJoiner queryJoiner = new StringJoiner("&");
       localVarQueryParams.forEach(p -> queryJoiner.add(p.getName() + '=' + p.getValue()));
-      if (localVarQueryDeepObjectStringJoiner.length() != 0) {
-        queryJoiner.add(localVarQueryDeepObjectStringJoiner.toString());
+      if (localVarQueryStringJoiner.length() != 0) {
+        queryJoiner.add(localVarQueryStringJoiner.toString());
       }
       localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath + '?' + queryJoiner.toString()));
     } else {
@@ -511,7 +512,7 @@ public class QueryApi {
     String localVarPath = "/query/style_form/explode_true/object";
 
     List<Pair> localVarQueryParams = new ArrayList<>();
-    StringJoiner localVarQueryDeepObjectStringJoiner = new StringJoiner("&");
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
     String localVarQueryParameterBaseName;
     localVarQueryParameterBaseName = "query_object";
     localVarQueryParams.addAll(ApiClient.parameterToPairs("id", queryObject.getId()));
@@ -521,11 +522,101 @@ public class QueryApi {
     localVarQueryParams.addAll(ApiClient.parameterToPairs("multi", "tags", queryObject.getTags()));
     localVarQueryParams.addAll(ApiClient.parameterToPairs("status", queryObject.getStatus()));
 
-    if (!localVarQueryParams.isEmpty() || localVarQueryDeepObjectStringJoiner.length() != 0) {
+    if (!localVarQueryParams.isEmpty() || localVarQueryStringJoiner.length() != 0) {
       StringJoiner queryJoiner = new StringJoiner("&");
       localVarQueryParams.forEach(p -> queryJoiner.add(p.getName() + '=' + p.getValue()));
-      if (localVarQueryDeepObjectStringJoiner.length() != 0) {
-        queryJoiner.add(localVarQueryDeepObjectStringJoiner.toString());
+      if (localVarQueryStringJoiner.length() != 0) {
+        queryJoiner.add(localVarQueryStringJoiner.toString());
+      }
+      localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath + '?' + queryJoiner.toString()));
+    } else {
+      localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+    }
+
+    localVarRequestBuilder.header("Accept", "text/plain");
+
+    localVarRequestBuilder.method("GET", HttpRequest.BodyPublishers.noBody());
+    if (memberVarReadTimeout != null) {
+      localVarRequestBuilder.timeout(memberVarReadTimeout);
+    }
+    if (memberVarInterceptor != null) {
+      memberVarInterceptor.accept(localVarRequestBuilder);
+    }
+    return localVarRequestBuilder;
+  }
+  /**
+   * Test query parameter(s)
+   * Test query parameter(s)
+   * @param queryObject  (optional)
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testQueryStyleFormExplodeTrueObjectAllOf(DataQuery queryObject) throws ApiException {
+    ApiResponse<String> localVarResponse = testQueryStyleFormExplodeTrueObjectAllOfWithHttpInfo(queryObject);
+    return localVarResponse.getData();
+  }
+
+  /**
+   * Test query parameter(s)
+   * Test query parameter(s)
+   * @param queryObject  (optional)
+   * @return ApiResponse&lt;String&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public ApiResponse<String> testQueryStyleFormExplodeTrueObjectAllOfWithHttpInfo(DataQuery queryObject) throws ApiException {
+    HttpRequest.Builder localVarRequestBuilder = testQueryStyleFormExplodeTrueObjectAllOfRequestBuilder(queryObject);
+    try {
+      HttpResponse<InputStream> localVarResponse = memberVarHttpClient.send(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofInputStream());
+      if (memberVarResponseInterceptor != null) {
+        memberVarResponseInterceptor.accept(localVarResponse);
+      }
+      try {
+        if (localVarResponse.statusCode()/ 100 != 2) {
+          throw getApiException("testQueryStyleFormExplodeTrueObjectAllOf", localVarResponse);
+        }
+        // for plain text response
+        if (localVarResponse.headers().map().containsKey("Content-Type") &&
+                "text/plain".equalsIgnoreCase(localVarResponse.headers().map().get("Content-Type").get(0))) {
+          java.util.Scanner s = new java.util.Scanner(localVarResponse.body()).useDelimiter("\\A");
+          String responseBodyText = s.hasNext() ? s.next() : "";
+          return new ApiResponse<String>(
+                  localVarResponse.statusCode(),
+                  localVarResponse.headers().map(),
+                  responseBodyText
+          );
+        } else {
+            throw new RuntimeException("Error! The response Content-Type is supposed to be `text/plain` but it's not: " + localVarResponse);
+        }
+      } finally {
+      }
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    catch (InterruptedException e) {
+      Thread.currentThread().interrupt();
+      throw new ApiException(e);
+    }
+  }
+
+  private HttpRequest.Builder testQueryStyleFormExplodeTrueObjectAllOfRequestBuilder(DataQuery queryObject) throws ApiException {
+
+    HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
+
+    String localVarPath = "/query/style_form/explode_true/object/allOf";
+
+    List<Pair> localVarQueryParams = new ArrayList<>();
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
+    String localVarQueryParameterBaseName;
+    localVarQueryParameterBaseName = "query_object";
+    localVarQueryStringJoiner.add(queryObject.toUrlQueryString(null));
+
+    if (!localVarQueryParams.isEmpty() || localVarQueryStringJoiner.length() != 0) {
+      StringJoiner queryJoiner = new StringJoiner("&");
+      localVarQueryParams.forEach(p -> queryJoiner.add(p.getName() + '=' + p.getValue()));
+      if (localVarQueryStringJoiner.length() != 0) {
+        queryJoiner.add(localVarQueryStringJoiner.toString());
       }
       localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath + '?' + queryJoiner.toString()));
     } else {

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

@@ -138,6 +138,15 @@ public class Bird {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @return URL query string
+   */
+  public String toUrlQueryString() {
+    return toUrlQueryString(null);
+  }
+
   /**
    * Convert the instance into URL query string.
    *
@@ -145,20 +154,30 @@ public class Bird {
    * @return URL query string
    */
   public String toUrlQueryString(String prefix) {
+    String suffix = "";
+    String containerSuffix = "";
+    String containerPrefix = "";
     if (prefix == null) {
+      // style=form, explode=true, e.g. /pet?name=cat&type=manx
       prefix = "";
+    } else {
+      // deepObject style e.g. /pet?id[name]=cat&id[type]=manx
+      prefix = prefix + "[";
+      suffix = "]";
+      containerSuffix = "]";
+      containerPrefix = "[";
     }
 
     StringJoiner joiner = new StringJoiner("&");
 
     // add `size` to the URL query string
     if (getSize() != null) {
-      joiner.add(String.format("%s[size]=%s", prefix, URLEncoder.encode(String.valueOf(getSize()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%ssize%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getSize()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     // add `color` to the URL query string
     if (getColor() != null) {
-      joiner.add(String.format("%s[color]=%s", prefix, URLEncoder.encode(String.valueOf(getColor()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%scolor%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getColor()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     return joiner.toString();

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

@@ -138,6 +138,15 @@ public class Category {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @return URL query string
+   */
+  public String toUrlQueryString() {
+    return toUrlQueryString(null);
+  }
+
   /**
    * Convert the instance into URL query string.
    *
@@ -145,20 +154,30 @@ public class Category {
    * @return URL query string
    */
   public String toUrlQueryString(String prefix) {
+    String suffix = "";
+    String containerSuffix = "";
+    String containerPrefix = "";
     if (prefix == null) {
+      // style=form, explode=true, e.g. /pet?name=cat&type=manx
       prefix = "";
+    } else {
+      // deepObject style e.g. /pet?id[name]=cat&id[type]=manx
+      prefix = prefix + "[";
+      suffix = "]";
+      containerSuffix = "]";
+      containerPrefix = "[";
     }
 
     StringJoiner joiner = new StringJoiner("&");
 
     // add `id` to the URL query string
     if (getId() != null) {
-      joiner.add(String.format("%s[id]=%s", prefix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%sid%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     // add `name` to the URL query string
     if (getName() != null) {
-      joiner.add(String.format("%s[name]=%s", prefix, URLEncoder.encode(String.valueOf(getName()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%sname%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getName()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     return joiner.toString();

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

@@ -0,0 +1,242 @@
+/*
+ * 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.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.time.OffsetDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import org.openapitools.client.model.Query;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
+
+/**
+ * DataQuery
+ */
+@JsonPropertyOrder({
+  DataQuery.JSON_PROPERTY_SUFFIX,
+  DataQuery.JSON_PROPERTY_TEXT,
+  DataQuery.JSON_PROPERTY_DATE
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class DataQuery extends Query {
+  public static final String JSON_PROPERTY_SUFFIX = "suffix";
+  private String suffix;
+
+  public static final String JSON_PROPERTY_TEXT = "text";
+  private String text;
+
+  public static final String JSON_PROPERTY_DATE = "date";
+  private OffsetDateTime date;
+
+  public DataQuery() { 
+  }
+
+  public DataQuery suffix(String suffix) {
+    this.suffix = suffix;
+    return this;
+  }
+
+   /**
+   * test suffix
+   * @return suffix
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_SUFFIX)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getSuffix() {
+    return suffix;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_SUFFIX)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setSuffix(String suffix) {
+    this.suffix = suffix;
+  }
+
+
+  public DataQuery text(String text) {
+    this.text = text;
+    return this;
+  }
+
+   /**
+   * Some text containing white spaces
+   * @return text
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_TEXT)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getText() {
+    return text;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_TEXT)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setText(String text) {
+    this.text = text;
+  }
+
+
+  public DataQuery date(OffsetDateTime date) {
+    this.date = date;
+    return this;
+  }
+
+   /**
+   * A date
+   * @return date
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_DATE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public OffsetDateTime getDate() {
+    return date;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_DATE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setDate(OffsetDateTime date) {
+    this.date = date;
+  }
+
+
+  /**
+   * Return true if this DataQuery object is equal to o.
+   */
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    DataQuery dataQuery = (DataQuery) o;
+    return Objects.equals(this.suffix, dataQuery.suffix) &&
+        Objects.equals(this.text, dataQuery.text) &&
+        Objects.equals(this.date, dataQuery.date) &&
+        super.equals(o);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(suffix, text, date, super.hashCode());
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class DataQuery {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("    suffix: ").append(toIndentedString(suffix)).append("\n");
+    sb.append("    text: ").append(toIndentedString(text)).append("\n");
+    sb.append("    date: ").append(toIndentedString(date)).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    ");
+  }
+
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @return URL query string
+   */
+  public String toUrlQueryString() {
+    return toUrlQueryString(null);
+  }
+
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @param prefix prefix of the query string
+   * @return URL query string
+   */
+  public String toUrlQueryString(String prefix) {
+    String suffix = "";
+    String containerSuffix = "";
+    String containerPrefix = "";
+    if (prefix == null) {
+      // style=form, explode=true, e.g. /pet?name=cat&type=manx
+      prefix = "";
+    } else {
+      // deepObject style e.g. /pet?id[name]=cat&id[type]=manx
+      prefix = prefix + "[";
+      suffix = "]";
+      containerSuffix = "]";
+      containerPrefix = "[";
+    }
+
+    StringJoiner joiner = new StringJoiner("&");
+
+    // add `suffix` to the URL query string
+    if (getSuffix() != null) {
+      joiner.add(String.format("%ssuffix%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getSuffix()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `text` to the URL query string
+    if (getText() != null) {
+      joiner.add(String.format("%stext%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getText()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `date` to the URL query string
+    if (getDate() != null) {
+      joiner.add(String.format("%sdate%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getDate()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `id` to the URL query string
+    if (getId() != null) {
+      joiner.add(String.format("%sid%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `outcomes` to the URL query string
+    if (getOutcomes() != null) {
+      for (int i = 0; i < getOutcomes().size(); i++) {
+        joiner.add(String.format("%soutcomes%s%s=%s", prefix, suffix,
+            "".equals(suffix) ? "" : String.format("%s%d%s", containerPrefix, i, containerSuffix),
+            URLEncoder.encode(String.valueOf(getOutcomes().get(i)), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      }
+    }
+
+    return joiner.toString();
+  }
+}
+

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

@@ -0,0 +1,223 @@
+/*
+ * 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.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.time.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
+
+/**
+ * DataQueryAllOf
+ */
+@JsonPropertyOrder({
+  DataQueryAllOf.JSON_PROPERTY_SUFFIX,
+  DataQueryAllOf.JSON_PROPERTY_TEXT,
+  DataQueryAllOf.JSON_PROPERTY_DATE
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class DataQueryAllOf {
+  public static final String JSON_PROPERTY_SUFFIX = "suffix";
+  private String suffix;
+
+  public static final String JSON_PROPERTY_TEXT = "text";
+  private String text;
+
+  public static final String JSON_PROPERTY_DATE = "date";
+  private OffsetDateTime date;
+
+  public DataQueryAllOf() { 
+  }
+
+  public DataQueryAllOf suffix(String suffix) {
+    this.suffix = suffix;
+    return this;
+  }
+
+   /**
+   * test suffix
+   * @return suffix
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_SUFFIX)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getSuffix() {
+    return suffix;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_SUFFIX)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setSuffix(String suffix) {
+    this.suffix = suffix;
+  }
+
+
+  public DataQueryAllOf text(String text) {
+    this.text = text;
+    return this;
+  }
+
+   /**
+   * Some text containing white spaces
+   * @return text
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_TEXT)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getText() {
+    return text;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_TEXT)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setText(String text) {
+    this.text = text;
+  }
+
+
+  public DataQueryAllOf date(OffsetDateTime date) {
+    this.date = date;
+    return this;
+  }
+
+   /**
+   * A date
+   * @return date
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_DATE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public OffsetDateTime getDate() {
+    return date;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_DATE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setDate(OffsetDateTime date) {
+    this.date = date;
+  }
+
+
+  /**
+   * Return true if this DataQuery_allOf object is equal to o.
+   */
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    DataQueryAllOf dataQueryAllOf = (DataQueryAllOf) o;
+    return Objects.equals(this.suffix, dataQueryAllOf.suffix) &&
+        Objects.equals(this.text, dataQueryAllOf.text) &&
+        Objects.equals(this.date, dataQueryAllOf.date);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(suffix, text, date);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class DataQueryAllOf {\n");
+    sb.append("    suffix: ").append(toIndentedString(suffix)).append("\n");
+    sb.append("    text: ").append(toIndentedString(text)).append("\n");
+    sb.append("    date: ").append(toIndentedString(date)).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    ");
+  }
+
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @return URL query string
+   */
+  public String toUrlQueryString() {
+    return toUrlQueryString(null);
+  }
+
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @param prefix prefix of the query string
+   * @return URL query string
+   */
+  public String toUrlQueryString(String prefix) {
+    String suffix = "";
+    String containerSuffix = "";
+    String containerPrefix = "";
+    if (prefix == null) {
+      // style=form, explode=true, e.g. /pet?name=cat&type=manx
+      prefix = "";
+    } else {
+      // deepObject style e.g. /pet?id[name]=cat&id[type]=manx
+      prefix = prefix + "[";
+      suffix = "]";
+      containerSuffix = "]";
+      containerPrefix = "[";
+    }
+
+    StringJoiner joiner = new StringJoiner("&");
+
+    // add `suffix` to the URL query string
+    if (getSuffix() != null) {
+      joiner.add(String.format("%ssuffix%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getSuffix()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `text` to the URL query string
+    if (getText() != null) {
+      joiner.add(String.format("%stext%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getText()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `date` to the URL query string
+    if (getDate() != null) {
+      joiner.add(String.format("%sdate%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getDate()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    return joiner.toString();
+  }
+}
+

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

@@ -316,6 +316,15 @@ public class Pet {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @return URL query string
+   */
+  public String toUrlQueryString() {
+    return toUrlQueryString(null);
+  }
+
   /**
    * Convert the instance into URL query string.
    *
@@ -323,31 +332,43 @@ public class Pet {
    * @return URL query string
    */
   public String toUrlQueryString(String prefix) {
+    String suffix = "";
+    String containerSuffix = "";
+    String containerPrefix = "";
     if (prefix == null) {
+      // style=form, explode=true, e.g. /pet?name=cat&type=manx
       prefix = "";
+    } else {
+      // deepObject style e.g. /pet?id[name]=cat&id[type]=manx
+      prefix = prefix + "[";
+      suffix = "]";
+      containerSuffix = "]";
+      containerPrefix = "[";
     }
 
     StringJoiner joiner = new StringJoiner("&");
 
     // add `id` to the URL query string
     if (getId() != null) {
-      joiner.add(String.format("%s[id]=%s", prefix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%sid%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     // add `name` to the URL query string
     if (getName() != null) {
-      joiner.add(String.format("%s[name]=%s", prefix, URLEncoder.encode(String.valueOf(getName()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%sname%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getName()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     // add `category` to the URL query string
     if (getCategory() != null) {
-      joiner.add(getCategory().toUrlQueryString(prefix + "[category]"));
+      joiner.add(getCategory().toUrlQueryString(prefix + "category" + suffix));
     }
 
     // add `photoUrls` to the URL query string
     if (getPhotoUrls() != null) {
       for (int i = 0; i < getPhotoUrls().size(); i++) {
-        joiner.add(String.format("%s[photoUrls][%d]=%s", prefix, i, URLEncoder.encode(String.valueOf(getPhotoUrls().get(i)), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+        joiner.add(String.format("%sphotoUrls%s%s=%s", prefix, suffix,
+            "".equals(suffix) ? "" : String.format("%s%d%s", containerPrefix, i, containerSuffix),
+            URLEncoder.encode(String.valueOf(getPhotoUrls().get(i)), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
       }
     }
 
@@ -355,14 +376,15 @@ public class Pet {
     if (getTags() != null) {
       for (int i = 0; i < getTags().size(); i++) {
         if (getTags().get(i) != null) {
-          joiner.add(getTags().get(i).toUrlQueryString(String.format("%s[tags][%d]", prefix, i)));
+          joiner.add(getTags().get(i).toUrlQueryString(String.format("%stags%s%s", prefix, suffix,
+          "".equals(suffix) ? "" : String.format("%s%d%s", containerPrefix, i, containerSuffix))));
         }
       }
     }
 
     // add `status` to the URL query string
     if (getStatus() != null) {
-      joiner.add(String.format("%s[status]=%s", prefix, URLEncoder.encode(String.valueOf(getStatus()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%sstatus%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getStatus()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     return joiner.toString();

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

@@ -0,0 +1,237 @@
+/*
+ * 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.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.util.ArrayList;
+import java.util.List;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
+
+/**
+ * Query
+ */
+@JsonPropertyOrder({
+  Query.JSON_PROPERTY_ID,
+  Query.JSON_PROPERTY_OUTCOMES
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class Query {
+  public static final String JSON_PROPERTY_ID = "id";
+  private Long id;
+
+  /**
+   * Gets or Sets outcomes
+   */
+  public enum OutcomesEnum {
+    SUCCESS("SUCCESS"),
+    
+    FAILURE("FAILURE"),
+    
+    SKIPPED("SKIPPED");
+
+    private String value;
+
+    OutcomesEnum(String value) {
+      this.value = value;
+    }
+
+    @JsonValue
+    public String getValue() {
+      return value;
+    }
+
+    @Override
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static OutcomesEnum fromValue(String value) {
+      for (OutcomesEnum b : OutcomesEnum.values()) {
+        if (b.value.equals(value)) {
+          return b;
+        }
+      }
+      throw new IllegalArgumentException("Unexpected value '" + value + "'");
+    }
+  }
+
+  public static final String JSON_PROPERTY_OUTCOMES = "outcomes";
+  private List<OutcomesEnum> outcomes = null;
+
+  public Query() { 
+  }
+
+  public Query id(Long id) {
+    this.id = id;
+    return this;
+  }
+
+   /**
+   * Query
+   * @return id
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_ID)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public Long getId() {
+    return id;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_ID)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+
+  public Query outcomes(List<OutcomesEnum> outcomes) {
+    this.outcomes = outcomes;
+    return this;
+  }
+
+  public Query addOutcomesItem(OutcomesEnum outcomesItem) {
+    if (this.outcomes == null) {
+      this.outcomes = new ArrayList<>();
+    }
+    this.outcomes.add(outcomesItem);
+    return this;
+  }
+
+   /**
+   * Get outcomes
+   * @return outcomes
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_OUTCOMES)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public List<OutcomesEnum> getOutcomes() {
+    return outcomes;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_OUTCOMES)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setOutcomes(List<OutcomesEnum> outcomes) {
+    this.outcomes = outcomes;
+  }
+
+
+  /**
+   * Return true if this Query object is equal to o.
+   */
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Query query = (Query) o;
+    return Objects.equals(this.id, query.id) &&
+        Objects.equals(this.outcomes, query.outcomes);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(id, outcomes);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Query {\n");
+    sb.append("    id: ").append(toIndentedString(id)).append("\n");
+    sb.append("    outcomes: ").append(toIndentedString(outcomes)).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    ");
+  }
+
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @return URL query string
+   */
+  public String toUrlQueryString() {
+    return toUrlQueryString(null);
+  }
+
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @param prefix prefix of the query string
+   * @return URL query string
+   */
+  public String toUrlQueryString(String prefix) {
+    String suffix = "";
+    String containerSuffix = "";
+    String containerPrefix = "";
+    if (prefix == null) {
+      // style=form, explode=true, e.g. /pet?name=cat&type=manx
+      prefix = "";
+    } else {
+      // deepObject style e.g. /pet?id[name]=cat&id[type]=manx
+      prefix = prefix + "[";
+      suffix = "]";
+      containerSuffix = "]";
+      containerPrefix = "[";
+    }
+
+    StringJoiner joiner = new StringJoiner("&");
+
+    // add `id` to the URL query string
+    if (getId() != null) {
+      joiner.add(String.format("%sid%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `outcomes` to the URL query string
+    if (getOutcomes() != null) {
+      for (int i = 0; i < getOutcomes().size(); i++) {
+        joiner.add(String.format("%soutcomes%s%s=%s", prefix, suffix,
+            "".equals(suffix) ? "" : String.format("%s%d%s", containerPrefix, i, containerSuffix),
+            URLEncoder.encode(String.valueOf(getOutcomes().get(i)), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      }
+    }
+
+    return joiner.toString();
+  }
+}
+

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

@@ -138,6 +138,15 @@ public class Tag {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @return URL query string
+   */
+  public String toUrlQueryString() {
+    return toUrlQueryString(null);
+  }
+
   /**
    * Convert the instance into URL query string.
    *
@@ -145,20 +154,30 @@ public class Tag {
    * @return URL query string
    */
   public String toUrlQueryString(String prefix) {
+    String suffix = "";
+    String containerSuffix = "";
+    String containerPrefix = "";
     if (prefix == null) {
+      // style=form, explode=true, e.g. /pet?name=cat&type=manx
       prefix = "";
+    } else {
+      // deepObject style e.g. /pet?id[name]=cat&id[type]=manx
+      prefix = prefix + "[";
+      suffix = "]";
+      containerSuffix = "]";
+      containerPrefix = "[";
     }
 
     StringJoiner joiner = new StringJoiner("&");
 
     // add `id` to the URL query string
     if (getId() != null) {
-      joiner.add(String.format("%s[id]=%s", prefix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%sid%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     // add `name` to the URL query string
     if (getName() != null) {
-      joiner.add(String.format("%s[name]=%s", prefix, URLEncoder.encode(String.valueOf(getName()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%sname%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getName()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     return joiner.toString();

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

@@ -200,6 +200,15 @@ public class TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter
     return o.toString().replace("\n", "\n    ");
   }
 
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @return URL query string
+   */
+  public String toUrlQueryString() {
+    return toUrlQueryString(null);
+  }
+
   /**
    * Convert the instance into URL query string.
    *
@@ -207,30 +216,40 @@ public class TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter
    * @return URL query string
    */
   public String toUrlQueryString(String prefix) {
+    String suffix = "";
+    String containerSuffix = "";
+    String containerPrefix = "";
     if (prefix == null) {
+      // style=form, explode=true, e.g. /pet?name=cat&type=manx
       prefix = "";
+    } else {
+      // deepObject style e.g. /pet?id[name]=cat&id[type]=manx
+      prefix = prefix + "[";
+      suffix = "]";
+      containerSuffix = "]";
+      containerPrefix = "[";
     }
 
     StringJoiner joiner = new StringJoiner("&");
 
     // add `size` to the URL query string
     if (getSize() != null) {
-      joiner.add(String.format("%s[size]=%s", prefix, URLEncoder.encode(String.valueOf(getSize()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%ssize%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getSize()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     // add `color` to the URL query string
     if (getColor() != null) {
-      joiner.add(String.format("%s[color]=%s", prefix, URLEncoder.encode(String.valueOf(getColor()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%scolor%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getColor()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     // add `id` to the URL query string
     if (getId() != null) {
-      joiner.add(String.format("%s[id]=%s", prefix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%sid%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     // add `name` to the URL query string
     if (getName() != null) {
-      joiner.add(String.format("%s[name]=%s", prefix, URLEncoder.encode(String.valueOf(getName()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+      joiner.add(String.format("%sname%s=%s", prefix, suffix, URLEncoder.encode(String.valueOf(getName()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
     }
 
     return joiner.toString();

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

@@ -117,6 +117,15 @@ public class TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /**
+   * Convert the instance into URL query string.
+   *
+   * @return URL query string
+   */
+  public String toUrlQueryString() {
+    return toUrlQueryString(null);
+  }
+
   /**
    * Convert the instance into URL query string.
    *
@@ -124,8 +133,18 @@ public class TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter {
    * @return URL query string
    */
   public String toUrlQueryString(String prefix) {
+    String suffix = "";
+    String containerSuffix = "";
+    String containerPrefix = "";
     if (prefix == null) {
+      // style=form, explode=true, e.g. /pet?name=cat&type=manx
       prefix = "";
+    } else {
+      // deepObject style e.g. /pet?id[name]=cat&id[type]=manx
+      prefix = prefix + "[";
+      suffix = "]";
+      containerSuffix = "]";
+      containerPrefix = "[";
     }
 
     StringJoiner joiner = new StringJoiner("&");
@@ -133,7 +152,9 @@ public class TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter {
     // add `values` to the URL query string
     if (getValues() != null) {
       for (int i = 0; i < getValues().size(); i++) {
-        joiner.add(String.format("%s[values][%d]=%s", prefix, i, URLEncoder.encode(String.valueOf(getValues().get(i)), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+        joiner.add(String.format("%svalues%s%s=%s", prefix, suffix,
+            "".equals(suffix) ? "" : String.format("%s%d%s", containerPrefix, i, containerSuffix),
+            URLEncoder.encode(String.valueOf(getValues().get(i)), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
       }
     }
 

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

@@ -0,0 +1,239 @@
+/*
+ * 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.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
+
+/**
+ * TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter
+ */
+@JsonPropertyOrder({
+  TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter.JSON_PROPERTY_SIZE,
+  TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter.JSON_PROPERTY_COLOR,
+  TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter.JSON_PROPERTY_ID,
+  TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter.JSON_PROPERTY_NAME
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter {
+  public static final String JSON_PROPERTY_SIZE = "size";
+  private String size;
+
+  public static final String JSON_PROPERTY_COLOR = "color";
+  private String color;
+
+  public static final String JSON_PROPERTY_ID = "id";
+  private Long id;
+
+  public static final String JSON_PROPERTY_NAME = "name";
+  private String name;
+
+  public TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter() { 
+  }
+
+  public TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter size(String size) {
+    this.size = size;
+    return this;
+  }
+
+   /**
+   * Get size
+   * @return size
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_SIZE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getSize() {
+    return size;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_SIZE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setSize(String size) {
+    this.size = size;
+  }
+
+
+  public TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter color(String color) {
+    this.color = color;
+    return this;
+  }
+
+   /**
+   * Get color
+   * @return color
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_COLOR)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getColor() {
+    return color;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_COLOR)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setColor(String color) {
+    this.color = color;
+  }
+
+
+  public TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter id(Long id) {
+    this.id = id;
+    return this;
+  }
+
+   /**
+   * Get id
+   * @return id
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_ID)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public Long getId() {
+    return id;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_ID)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+
+  public TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter name(String name) {
+    this.name = name;
+    return this;
+  }
+
+   /**
+   * Get name
+   * @return name
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_NAME)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getName() {
+    return name;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_NAME)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setName(String name) {
+    this.name = name;
+  }
+
+
+  /**
+   * Return true if this test_query_style_form_explode_true_object_allOf_query_object_parameter object is equal to o.
+   */
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter testQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter = (TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter) o;
+    return Objects.equals(this.size, testQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter.size) &&
+        Objects.equals(this.color, testQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter.color) &&
+        Objects.equals(this.id, testQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter.id) &&
+        Objects.equals(this.name, testQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter.name);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(size, color, id, name);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter {\n");
+    sb.append("    size: ").append(toIndentedString(size)).append("\n");
+    sb.append("    color: ").append(toIndentedString(color)).append("\n");
+    sb.append("    id: ").append(toIndentedString(id)).append("\n");
+    sb.append("    name: ").append(toIndentedString(name)).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    ");
+  }
+
+  /**
+   * 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 = "";
+    }
+
+    StringJoiner joiner = new StringJoiner("&");
+
+    // add `size` to the URL query string
+    if (getSize() != null) {
+      joiner.add(String.format("%s[size]=%s", prefix, URLEncoder.encode(String.valueOf(getSize()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `color` to the URL query string
+    if (getColor() != null) {
+      joiner.add(String.format("%s[color]=%s", prefix, URLEncoder.encode(String.valueOf(getColor()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `id` to the URL query string
+    if (getId() != null) {
+      joiner.add(String.format("%s[id]=%s", prefix, URLEncoder.encode(String.valueOf(getId()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    // add `name` to the URL query string
+    if (getName() != null) {
+      joiner.add(String.format("%s[name]=%s", prefix, URLEncoder.encode(String.valueOf(getName()), StandardCharsets.UTF_8).replaceAll("\\+", "%20")));
+    }
+
+    return joiner.toString();
+  }
+}
+

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

@@ -71,6 +71,24 @@ public class CustomTest {
         Assert.assertEquals("/query/style_form/explode_true/object?id=12345&name=Hello%20World&category=class%20Category%20%7B%0A%20%20%20%20id%3A%20987%0A%20%20%20%20name%3A%20new%20category%0A%7D&photoUrls=http%3A%2F%2Fa.com&photoUrls=http%3A%2F%2Fb.com", p.path);
     }
 
+    /**
+     * Test query parameter(s)
+     * <p>
+     * Test query parameter(s)
+     *
+     * @throws ApiException if the Api call fails
+     */
+    @Test
+    public void testQueryStyleFormExplodeTrueObjectAllOfTest() throws ApiException {
+        DataQuery queryObject = new DataQuery().text("Hello World");
+        queryObject.setId(3487L);
+        queryObject.setOutcomes(Arrays.asList(Query.OutcomesEnum.SKIPPED, Query.OutcomesEnum.FAILURE));
+
+        String response = api.testQueryStyleFormExplodeTrueObjectAllOf(queryObject);
+        org.openapitools.client.EchoServerResponseParser p = new org.openapitools.client.EchoServerResponseParser(response);
+        Assert.assertEquals("/query/style_form/explode_true/object/allOf?text=Hello%20World&id=3487&outcomes=SKIPPED&outcomes=FAILURE", p.path);
+    }
+
     /**
      * Test query parameter(s)
      * <p>

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

@@ -0,0 +1,57 @@
+/*
+ * 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.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.time.OffsetDateTime;
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for DataQueryAllOf
+ */
+public class DataQueryAllOfTest {
+    private final DataQueryAllOf model = new DataQueryAllOf();
+
+    /**
+     * Model tests for DataQueryAllOf
+     */
+    @Test
+    public void testDataQueryAllOf() {
+        // TODO: test DataQueryAllOf
+    }
+
+    /**
+     * Test the property 'text'
+     */
+    @Test
+    public void textTest() {
+        // TODO: test text
+    }
+
+    /**
+     * Test the property 'date'
+     */
+    @Test
+    public void dateTest() {
+        // TODO: test date
+    }
+
+}

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

@@ -0,0 +1,76 @@
+/*
+ * 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.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.time.OffsetDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import org.openapitools.client.model.Query;
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for DataQuery
+ */
+public class DataQueryTest {
+    private final DataQuery model = new DataQuery();
+
+    /**
+     * Model tests for DataQuery
+     */
+    @Test
+    public void testDataQuery() {
+        // TODO: test DataQuery
+    }
+
+    /**
+     * Test the property 'text'
+     */
+    @Test
+    public void textTest() {
+        // TODO: test text
+    }
+
+    /**
+     * Test the property 'date'
+     */
+    @Test
+    public void dateTest() {
+        // TODO: test date
+    }
+
+    /**
+     * Test the property 'id'
+     */
+    @Test
+    public void idTest() {
+        // TODO: test id
+    }
+
+    /**
+     * Test the property 'outcomes'
+     */
+    @Test
+    public void outcomesTest() {
+        // TODO: test outcomes
+    }
+
+}

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

@@ -0,0 +1,58 @@
+/*
+ * 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.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.util.ArrayList;
+import java.util.List;
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for Query
+ */
+public class QueryTest {
+    private final Query model = new Query();
+
+    /**
+     * Model tests for Query
+     */
+    @Test
+    public void testQuery() {
+        // TODO: test Query
+    }
+
+    /**
+     * Test the property 'id'
+     */
+    @Test
+    public void idTest() {
+        // TODO: test id
+    }
+
+    /**
+     * Test the property 'outcomes'
+     */
+    @Test
+    public void outcomesTest() {
+        // TODO: test outcomes
+    }
+
+}

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

@@ -0,0 +1,72 @@
+/*
+ * 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.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter
+ */
+public class TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameterTest {
+    private final TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter model = new TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter();
+
+    /**
+     * Model tests for TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter
+     */
+    @Test
+    public void testTestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter() {
+        // TODO: test TestQueryStyleFormExplodeTrueObjectAllOfQueryObjectParameter
+    }
+
+    /**
+     * Test the property 'size'
+     */
+    @Test
+    public void sizeTest() {
+        // TODO: test size
+    }
+
+    /**
+     * Test the property 'color'
+     */
+    @Test
+    public void colorTest() {
+        // TODO: test color
+    }
+
+    /**
+     * Test the property 'id'
+     */
+    @Test
+    public void idTest() {
+        // TODO: test id
+    }
+
+    /**
+     * Test the property 'name'
+     */
+    @Test
+    public void nameTest() {
+        // TODO: test name
+    }
+
+}