Remove "joda-time" dependency

Author: jmini

modules/swagger-codegen/pom.xml

@@ -268,11 +268,6 @@
             <artifactId>commons-cli</artifactId>
             <version>${commons-cli-version}</version>
         </dependency>
-        <dependency>
-            <groupId>joda-time</groupId>
-            <artifactId>joda-time</artifactId>
-            <version>2.9.7</version>
-        </dependency>
         <dependency>
             <groupId>org.testng</groupId>
             <artifactId>testng</artifactId>

modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultGenerator.java

@@ -9,6 +9,7 @@
 import java.io.Reader;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.time.ZonedDateTime;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -56,8 +57,6 @@
 import org.apache.commons.lang3.ObjectUtils;
 import org.apache.commons.lang3.StringUtils;
 
-import org.joda.time.DateTime;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -204,8 +203,8 @@ private void configureGeneratorProperties() {
         config.processOpts();
         config.preprocessOpenAPI(this.openAPI);
         config.additionalProperties().put("generatorVersion", ImplementationVersion.read());
-        config.additionalProperties().put("generatedDate", DateTime.now().toString());
-        config.additionalProperties().put("generatedYear", String.valueOf(DateTime.now().getYear()));
+        config.additionalProperties().put("generatedDate", ZonedDateTime.now().toString());
+        config.additionalProperties().put("generatedYear", String.valueOf(ZonedDateTime.now().getYear()));
         config.additionalProperties().put("generatorClass", config.getClass().getName());
         config.additionalProperties().put("inputSpec", config.getInputSpec());
         if (this.openAPI.getExtensions() != null) {