Prepare 7.12.0 (#20512)

* Revert "v7.11.0 release (#20508)"

This reverts commit a7240eeefe.

* prepare 7.12.0 snapshot version

* update samples

* update readme

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/ApiClient.java

@@ -56,7 +56,7 @@ import org.openapitools.client.auth.HttpBasicAuth;
 import org.openapitools.client.auth.HttpBearerAuth;
 import org.openapitools.client.auth.ApiKeyAuth;
 
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class ApiClient extends JavaTimeFormatter {
     public enum CollectionFormat {
         CSV(","), TSV("\t"), SSV(" "), PIPES("|"), MULTI(null);

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/JavaTimeFormatter.java

@@ -20,7 +20,7 @@ import java.time.format.DateTimeParseException;
  * Class that add parsing/formatting support for Java 8+ {@code OffsetDateTime} class.
  * It's generated for java clients when {@code AbstractJavaCodegen#dateLibrary} specified as {@code java8}.
  */
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class JavaTimeFormatter {
 
     private DateTimeFormatter offsetDateTimeFormatter = DateTimeFormatter.ISO_OFFSET_DATE_TIME;

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/RFC3339DateFormat.java

@@ -22,7 +22,7 @@ import java.text.DecimalFormat;
 import java.util.GregorianCalendar;
 import java.util.TimeZone;
 
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class RFC3339DateFormat extends DateFormat {
   private static final long serialVersionUID = 1L;
   private static final TimeZone TIMEZONE_Z = TimeZone.getTimeZone("UTC");

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/ServerConfiguration.java

@@ -18,7 +18,7 @@ import java.util.Map;
 /**
  * Representing a Server configuration.
  */
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class ServerConfiguration {
     public String URL;
     public String description;

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/ServerVariable.java

@@ -18,7 +18,7 @@ import java.util.HashSet;
 /**
  * Representing a Server Variable for server URL template substitution.
  */
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class ServerVariable {
     public String description;
     public String defaultValue;

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/StringUtil.java

@@ -16,7 +16,7 @@ package org.openapitools.client;
 import java.util.Collection;
 import java.util.Iterator;
 
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class StringUtil {
   /**
    * Check if the given array contains the given value (with case-insensitive comparison).

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/api/DefaultApi.java

@@ -23,7 +23,7 @@ import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class DefaultApi {
     private ApiClient apiClient;
 

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/auth/ApiKeyAuth.java

@@ -16,7 +16,7 @@ package org.openapitools.client.auth;
 import org.springframework.http.HttpHeaders;
 import org.springframework.util.MultiValueMap;
 
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class ApiKeyAuth implements Authentication {
     private final String location;
     private final String paramName;

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/auth/HttpBasicAuth.java

@@ -19,7 +19,7 @@ import java.util.Base64;
 import org.springframework.http.HttpHeaders;
 import org.springframework.util.MultiValueMap;
 
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class HttpBasicAuth implements Authentication {
     private String username;
     private String password;

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/auth/HttpBearerAuth.java

@@ -18,7 +18,7 @@ import java.util.function.Supplier;
 import org.springframework.http.HttpHeaders;
 import org.springframework.util.MultiValueMap;
 
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class HttpBearerAuth implements Authentication {
     private final String scheme;
     private Supplier<String> tokenSupplier;

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/model/ByteArrayObject.java

@@ -38,7 +38,7 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
   ByteArrayObject.JSON_PROPERTY_STRING_FIELD,
   ByteArrayObject.JSON_PROPERTY_INT_FIELD
 })
-@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.11.0-SNAPSHOT")
+@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0-SNAPSHOT")
 public class ByteArrayObject {
   public static final String JSON_PROPERTY_NULLABLE_ARRAY = "nullableArray";
   @jakarta.annotation.Nullable