add jakarta implementation

#1054

Author: Fyro-Ing

src/main/java/io/swagger/codegen/v3/generators/java/AbstractJavaCodegen.java

@@ -62,6 +62,8 @@ public abstract class AbstractJavaCodegen extends DefaultCodegenConfig {
 
     public static final String WIREMOCK_OPTION = "wiremock";
 
+    public static final String JAKARTA = "jakarta";
+
     protected String dateLibrary = "threetenbp";
     protected boolean java8Mode = false;
     protected boolean java11Mode = false;
@@ -93,6 +95,7 @@ public abstract class AbstractJavaCodegen extends DefaultCodegenConfig {
     protected String apiDocPath = "docs/";
     protected String modelDocPath = "docs/";
     protected boolean supportJava6= false;
+    protected boolean jakarta = false;
     private NotNullAnnotationFeatures notNullOption;
 
     public AbstractJavaCodegen() {
@@ -194,6 +197,15 @@ public AbstractJavaCodegen() {
         cliOptions.add(CliOption.newBoolean(CHECK_DUPLICATED_MODEL_NAME, "Check if there are duplicated model names (ignoring case)"));
 
         cliOptions.add(CliOption.newBoolean(WIREMOCK_OPTION, "Use wiremock to generate endpoint calls to mock on generated tests."));
+
+        cliOptions.add(CliOption.newBoolean(JAKARTA, "Use Jakarta EE (package jakarta.*) instead of Java EE (javax.*)"));
+
+        CliOption jeeSpec = CliOption.newBoolean(JAKARTA, "Use Jakarta EE (package jakarta.*) instead of Java EE (javax.*)");
+        Map<String, String> jeeSpecModeOptions = new HashMap<String, String>();
+        jeeSpecModeOptions.put("true", "Use Jakarta EE (package jakarta.*)");
+        jeeSpecModeOptions.put("false", "Use Java EE (javax.*)");
+        jeeSpec.setEnum(jeeSpecModeOptions);
+        cliOptions.add(jeeSpec);
     }
 
     @Override
@@ -490,6 +502,9 @@ public void processOpts() {
         } else if (dateLibrary.equals("legacy")) {
             additionalProperties.put("legacyDates", true);
         }
+
+        setJakarta(Boolean.parseBoolean(String.valueOf(additionalProperties.get(JAKARTA))));
+        additionalProperties.put(JAKARTA, jakarta);
     }
 
     private void sanitizeConfig() {
@@ -1564,6 +1579,10 @@ public void setJava11Mode(boolean java11Mode) {
         this.java11Mode = java11Mode;
     }
 
+    public void setJakarta(boolean jakarta) {
+        this.jakarta = jakarta;
+    }
+
     @Override
     public String escapeQuotationMark(String input) {
         // remove " to avoid code injection

src/main/resources/handlebars/Java/ApiClient.mustache

@@ -29,8 +29,14 @@ import com.sun.jersey.api.client.WebResource.Builder;
 import com.sun.jersey.multipart.FormDataMultiPart;
 import com.sun.jersey.multipart.file.FileDataBodyPart;
 
+{{#jakarta}}
+import jakarta.ws.rs.core.Response.Status.Family;
+import jakarta.ws.rs.core.MediaType;
+{{/jakarta}}
+{{^jakarta}}
 import javax.ws.rs.core.Response.Status.Family;
 import javax.ws.rs.core.MediaType;
+{{/jakarta}}
 
 import java.util.Collection;
 import java.util.Collections;

src/main/resources/handlebars/Java/BeanValidationException.mustache

@@ -1,9 +1,14 @@
 package {{invokerPackage}};
 
 import java.util.Set;
-
+{{#jakarta}}
+import jakarta.validation.ConstraintViolation;
+import jakarta.validation.ValidationException;
+{{/jakarta}}
+{{^jakarta}}
 import javax.validation.ConstraintViolation;
 import javax.validation.ValidationException;
+{{/jakarta}}
 
 public class BeanValidationException extends ValidationException {
     /**

src/main/resources/handlebars/Java/build.gradle.mustache

@@ -54,7 +54,7 @@ if(hasProperty('target') && target == 'android') {
         }
 
         dependencies {
-            provided 'javax.annotation:jsr250-api:1.0'
+            provided 'jakarta.annotation:jakarta.annotation-api:{{#jakarta}}2.1.1{{/jakarta}}{{^jakarta}}1.3.5{{/jakarta}}'
         }
     }
 

src/main/resources/handlebars/Java/generatedAnnotation.mustache

@@ -1 +1 @@
-{{^hideGenerationTimestamp}}@javax.annotation.Generated(value = "{{generatorClass}}", date = "{{generatedDate}}"){{/hideGenerationTimestamp}}
+{{^hideGenerationTimestamp}}@{{#jakarta}}jakarta{{/jakarta}}{{^jakarta}}javax{{/jakarta}}.annotation.Generated(value = "{{generatorClass}}", date = "{{generatedDate}}"){{/hideGenerationTimestamp}}

src/main/resources/handlebars/Java/libraries/feign/build.gradle.mustache

@@ -54,7 +54,7 @@ if(hasProperty('target') && target == 'android') {
         }
 
         dependencies {
-            provided 'javax.annotation:jsr250-api:1.0'
+            provided 'jakarta.annotation:jakarta.annotation-api:{{#jakarta}}2.1.1{{/jakarta}}{{^jakarta}}1.3.5{{/jakarta}}'
         }
     }
 

src/main/resources/handlebars/Java/libraries/jersey2/ApiClient.mustache

@@ -1,5 +1,18 @@
 package {{invokerPackage}};
 
+{{#jakarta}}
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.ClientBuilder;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.client.Invocation;
+import jakarta.ws.rs.client.WebTarget;
+import jakarta.ws.rs.core.Form;
+import jakarta.ws.rs.core.GenericType;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.core.Response.Status;
+{{/jakarta}}
+{{^jakarta}}
 import javax.ws.rs.client.Client;
 import javax.ws.rs.client.ClientBuilder;
 import javax.ws.rs.client.Entity;
@@ -10,6 +23,7 @@ import javax.ws.rs.core.GenericType;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 import javax.ws.rs.core.Response.Status;
+{{/jakarta}}
 
 import org.glassfish.jersey.client.ClientConfig;
 import org.glassfish.jersey.client.ClientProperties;

src/main/resources/handlebars/Java/libraries/jersey2/JSON.mustache

@@ -17,7 +17,12 @@ import com.fasterxml.jackson.datatype.threetenbp.ThreeTenModule;
 
 import java.text.DateFormat;
 
+{{#jakarta}}
+import jakarta.ws.rs.ext.ContextResolver;
+{{/jakarta}}
+{{^jakarta}}
 import javax.ws.rs.ext.ContextResolver;
+{{/jakarta}}
 
 {{>generatedAnnotation}}
 public class JSON implements ContextResolver<ObjectMapper> {

src/main/resources/handlebars/Java/libraries/jersey2/api.mustache

@@ -5,7 +5,12 @@ import {{invokerPackage}}.ApiClient;
 import {{invokerPackage}}.Configuration;
 import {{invokerPackage}}.Pair;
 
+{{#jakarta}}
+import jakarta.ws.rs.core.GenericType;
+{{/jakarta}}
+{{^jakarta}}
 import javax.ws.rs.core.GenericType;
+{{/jakarta}}
 
 {{#imports}}import {{import}};
 {{/imports}}

src/main/resources/handlebars/Java/libraries/jersey2/build.gradle.mustache

@@ -54,7 +54,7 @@ if(hasProperty('target') && target == 'android') {
         }
 
         dependencies {
-            provided 'javax.annotation:jsr250-api:1.0'
+            provided 'jakarta.annotation:jakarta.annotation-api:{{#jakarta}}2.1.1{{/jakarta}}{{^jakarta}}1.3.5{{/jakarta}}'
         }
     }