fix javadoc erorr in CI

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

@@ -66,6 +66,9 @@ public abstract class AbstractGenerator {
     /**
      * Get the template file path with template dir prepended, and use the
      * library template if exists.
+     *
+     * @param config Codegen config
+     * @param templateFile Template file
      */
     public String getFullTemplateFile(CodegenConfig config, String templateFile) {
         String library = config.getLibrary();

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

@@ -147,6 +147,8 @@ public interface CodegenConfig {
 
     /**
      * Library template (sub-template).
+     *
+     * @return libray template
      */
     String getLibrary();
 }

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

@@ -2193,6 +2193,8 @@ public class DefaultCodegen {
 
     /**
      * Library template (sub-template).
+     *
+     * @return Library template
      */
     public String getLibrary() {
         return library;
@@ -2257,10 +2259,10 @@ public class DefaultCodegen {
     }
 
     /**
-     * only write if the file doesn't exist
+     * Only write if the file doesn't exist
      *
-     * @param outputFolder
+     * @param outputFolder Output folder
-     * @param supportingFile
+     * @param supportingFile Supporting file
      */
     public void writeOptional(String outputFolder, SupportingFile supportingFile) {
         String folder = "";
@@ -2283,8 +2285,8 @@ public class DefaultCodegen {
     /**
      * Set CodegenParameter boolean flag using CodegenProperty.
      *
-     * @param p Codegen Parameter
+     * @param parameter Codegen Parameter
-     * @param cp Codegen property
+     * @param property  Codegen property
      */
     public void setParameterBooleanFlagWithCodegenProperty(CodegenParameter parameter, CodegenProperty property) {
         if (parameter == null) {

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavascriptClientCodegen.java

@@ -385,6 +385,9 @@ public class JavascriptClientCodegen extends DefaultCodegen implements CodegenCo
 
     /**
      * Normalize type by wrapping primitive types with single quotes.
+     *
+     * @param type Primitive type
+     * @return Normalized type
      */
     public String normalizeType(String type) {
       return type.replaceAll("\\b(Boolean|Integer|Number|String|Date)\\b", "'$1'");

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PythonClientCodegen.java

@@ -293,6 +293,9 @@ public class PythonClientCodegen extends DefaultCodegen implements CodegenConfig
      *
      * (PEP 0008) Python packages should also have short, all-lowercase names,
      * although the use of underscores is discouraged.
+     *
+     * @param packageName Package name
+     * @return Python package name that conforms to PEP 0008
      */
     @SuppressWarnings("static-method")
     public String generatePackageName(String packageName) {

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/RubyClientCodegen.java

@@ -211,6 +211,9 @@ public class RubyClientCodegen extends DefaultCodegen implements CodegenConfig {
 
     /**
      * Generate Ruby module name from the gem name, e.g. use "SwaggerClient" for "swagger_client".
+     *
+     * @param gemName Ruby gem name
+     * @return Ruby module naame
      */
     @SuppressWarnings("static-method")
     public String generateModuleName(String gemName) {
@@ -219,6 +222,9 @@ public class RubyClientCodegen extends DefaultCodegen implements CodegenConfig {
 
     /**
      * Generate Ruby gem name from the module name, e.g. use "swagger_client" for "SwaggerClient".
+     *
+     * @param  moduleName Ruby module naame
+     * @return Ruby gem name
      */
     @SuppressWarnings("static-method")
     public String generateGemName(String moduleName) {