diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavaClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavaClientCodegen.java
index f272343a795..099a9cb9add 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavaClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavaClientCodegen.java
@@ -21,7 +21,7 @@ public class JavaClientCodegen extends DefaultCodegen implements CodegenConfig {
     protected String artifactId = "swagger-java-client";
     protected String artifactVersion = "1.0.0";
     protected String sourceFolder = "src/main/java";
-
+    protected String localVariablePrefix = "";
     public JavaClientCodegen() {
         super();
         outputFolder = "generated-code/java";
@@ -61,6 +61,7 @@ public class JavaClientCodegen extends DefaultCodegen implements CodegenConfig {
         cliOptions.add(new CliOption("artifactId", "artifactId in generated pom.xml"));
         cliOptions.add(new CliOption("artifactVersion", "artifact version in generated pom.xml"));
         cliOptions.add(new CliOption("sourceFolder", "source folder for generated code"));
+        cliOptions.add(new CliOption("localVariablePrefix", "prefix for generated code members and local variables"));
     }
 
     public CodegenType getTag() {
@@ -111,6 +112,11 @@ public class JavaClientCodegen extends DefaultCodegen implements CodegenConfig {
             this.setSourceFolder((String) additionalProperties.get("sourceFolder"));
         }
 
+
+        if (additionalProperties.containsKey("localVariablePrefix")) {
+            this.setLocalVariablePrefix((String) additionalProperties.get("localVariablePrefix"));
+        }
+
         final String invokerFolder = (sourceFolder + File.separator + invokerPackage).replace(".", File.separator);
         supportingFiles.add(new SupportingFile("pom.mustache", "", "pom.xml"));
         supportingFiles.add(new SupportingFile("ApiClient.mustache", invokerFolder, "ApiClient.java"));
@@ -268,4 +274,8 @@ public class JavaClientCodegen extends DefaultCodegen implements CodegenConfig {
     public void setSourceFolder(String sourceFolder) {
         this.sourceFolder = sourceFolder;
     }
+
+    public void setLocalVariablePrefix(String localVariablePrefix) {
+        this.localVariablePrefix = localVariablePrefix;
+    }
 }
diff --git a/modules/swagger-codegen/src/main/resources/Java/api.mustache b/modules/swagger-codegen/src/main/resources/Java/api.mustache
index 39b71dbff9a..c48c0503f5c 100644
--- a/modules/swagger-codegen/src/main/resources/Java/api.mustache
+++ b/modules/swagger-codegen/src/main/resources/Java/api.mustache
@@ -23,22 +23,22 @@ import java.util.HashMap;
 
 {{#operations}}
 public class {{classname}} {
-  private ApiClient apiClient;
+  private ApiClient {{localVariablePrefix}}apiClient;
 
   public {{classname}}() {
     this(Configuration.getDefaultApiClient());
   }
 
   public {{classname}}(ApiClient apiClient) {
-    this.apiClient = apiClient;
+    this.{{localVariablePrefix}}apiClient = apiClient;
   }
 
   public ApiClient getApiClient() {
-    return apiClient;
+    return {{localVariablePrefix}}apiClient;
   }
 
   public void setApiClient(ApiClient apiClient) {
-    this.apiClient = apiClient;
+    this.{{localVariablePrefix}}apiClient = apiClient;
   }
 
   {{#operation}}
@@ -49,7 +49,7 @@ public class {{classname}} {
 {{/allParams}}   * @return {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}}
    */
   public {{#returnType}}{{{returnType}}} {{/returnType}}{{^returnType}}void {{/returnType}}{{nickname}} ({{#allParams}}{{{dataType}}} {{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) throws ApiException {
-    Object postBody = {{#bodyParam}}{{paramName}}{{/bodyParam}}{{^bodyParam}}null{{/bodyParam}};
+    Object {{localVariablePrefix}}postBody = {{#bodyParam}}{{paramName}}{{/bodyParam}}{{^bodyParam}}null{{/bodyParam}};
     {{#allParams}}{{#required}}
     // verify the required parameter '{{paramName}}' is set
     if ({{paramName}} == null) {
@@ -58,61 +58,61 @@ public class {{classname}} {
     {{/required}}{{/allParams}}
 
     // create path and map variables
-    String path = "{{path}}".replaceAll("\\{format\\}","json"){{#pathParams}}
-      .replaceAll("\\{" + "{{baseName}}" + "\\}", apiClient.escapeString({{{paramName}}}.toString())){{/pathParams}};
+    String {{localVariablePrefix}}path = "{{path}}".replaceAll("\\{format\\}","json"){{#pathParams}}
+      .replaceAll("\\{" + "{{baseName}}" + "\\}", {{localVariablePrefix}}apiClient.escapeString({{{paramName}}}.toString())){{/pathParams}};
 
     // query params
-    List<Pair> queryParams = new ArrayList<Pair>();
-    Map<String, String> headerParams = new HashMap<String, String>();
-    Map<String, String> formParams = new HashMap<String, String>();
+    List<Pair> {{localVariablePrefix}}queryParams = new ArrayList<Pair>();
+    Map<String, String> {{localVariablePrefix}}headerParams = new HashMap<String, String>();
+    Map<String, String> {{localVariablePrefix}}formParams = new HashMap<String, String>();
 
     {{#queryParams}}
-    queryParams.addAll(apiClient.parameterToPairs("{{#collectionFormat}}{{{collectionFormat}}}{{/collectionFormat}}", "{{baseName}}", {{paramName}}));
+    {{localVariablePrefix}}queryParams.addAll({{localVariablePrefix}}apiClient.parameterToPairs("{{#collectionFormat}}{{{collectionFormat}}}{{/collectionFormat}}", "{{baseName}}", {{paramName}}));
     {{/queryParams}}
 
     {{#headerParams}}if ({{paramName}} != null)
-    headerParams.put("{{baseName}}", apiClient.parameterToString({{paramName}}));
+    {{localVariablePrefix}}headerParams.put("{{baseName}}", {{localVariablePrefix}}apiClient.parameterToString({{paramName}}));
     {{/headerParams}}
 
-    final String[] accepts = {
+    final String[] {{localVariablePrefix}}accepts = {
       {{#produces}}"{{mediaType}}"{{#hasMore}}, {{/hasMore}}{{/produces}}
     };
-    final String accept = apiClient.selectHeaderAccept(accepts);
+    final String {{localVariablePrefix}}accept = {{localVariablePrefix}}apiClient.selectHeaderAccept({{localVariablePrefix}}accepts);
 
-    final String[] contentTypes = {
+    final String[] {{localVariablePrefix}}contentTypes = {
       {{#consumes}}"{{mediaType}}"{{#hasMore}}, {{/hasMore}}{{/consumes}}
     };
-    final String contentType = apiClient.selectHeaderContentType(contentTypes);
+    final String {{localVariablePrefix}}contentType = {{localVariablePrefix}}apiClient.selectHeaderContentType({{localVariablePrefix}}contentTypes);
 
-    if(contentType.startsWith("multipart/form-data")) {
-      boolean hasFields = false;
-      FormDataMultiPart mp = new FormDataMultiPart();
+    if({{localVariablePrefix}}contentType.startsWith("multipart/form-data")) {
+      boolean {{localVariablePrefix}}hasFields = false;
+      FormDataMultiPart {{localVariablePrefix}}mp = new FormDataMultiPart();
       {{#formParams}}{{#notFile}}
       if ({{paramName}} != null) {
-        hasFields = true;
-        mp.field("{{baseName}}", apiClient.parameterToString({{paramName}}), MediaType.MULTIPART_FORM_DATA_TYPE);
+        {{localVariablePrefix}}hasFields = true;
+        {{localVariablePrefix}}mp.field("{{baseName}}", {{localVariablePrefix}}apiClient.parameterToString({{paramName}}), MediaType.MULTIPART_FORM_DATA_TYPE);
       }
       {{/notFile}}{{#isFile}}
       if ({{paramName}} != null) {
-        hasFields = true;
-        mp.field("{{baseName}}", {{paramName}}.getName());
-        mp.bodyPart(new FileDataBodyPart("{{baseName}}", {{paramName}}, MediaType.MULTIPART_FORM_DATA_TYPE));
+        {{localVariablePrefix}}hasFields = true;
+        {{localVariablePrefix}}mp.field("{{baseName}}", {{paramName}}.getName());
+        {{localVariablePrefix}}mp.bodyPart(new FileDataBodyPart("{{baseName}}", {{paramName}}, MediaType.MULTIPART_FORM_DATA_TYPE));
       }
       {{/isFile}}{{/formParams}}
-      if(hasFields)
-        postBody = mp;
+      if({{localVariablePrefix}}hasFields)
+        {{localVariablePrefix}}postBody = {{localVariablePrefix}}mp;
     }
     else {
       {{#formParams}}{{#notFile}}if ({{paramName}} != null)
-        formParams.put("{{baseName}}", apiClient.parameterToString({{paramName}}));{{/notFile}}
+        {{localVariablePrefix}}formParams.put("{{baseName}}", {{localVariablePrefix}}apiClient.parameterToString({{paramName}}));{{/notFile}}
       {{/formParams}}
     }
 
     try {
-      String[] authNames = new String[] { {{#authMethods}}"{{name}}"{{#hasMore}}, {{/hasMore}}{{/authMethods}} };
-      String response = apiClient.invokeAPI(path, "{{httpMethod}}", queryParams, postBody, headerParams, formParams, accept, contentType, authNames);
-      if(response != null){
-        return {{#returnType}}({{{returnType}}}) apiClient.deserialize(response, "{{returnContainer}}", {{returnBaseType}}.class){{/returnType}};
+      String[] {{localVariablePrefix}}authNames = new String[] { {{#authMethods}}"{{name}}"{{#hasMore}}, {{/hasMore}}{{/authMethods}} };
+      String {{localVariablePrefix}}response = {{localVariablePrefix}}apiClient.invokeAPI({{localVariablePrefix}}path, "{{httpMethod}}", {{localVariablePrefix}}queryParams, {{localVariablePrefix}}postBody, {{localVariablePrefix}}headerParams, {{localVariablePrefix}}formParams, {{localVariablePrefix}}accept, {{localVariablePrefix}}contentType, {{localVariablePrefix}}authNames);
+      if({{localVariablePrefix}}response != null){
+        return {{#returnType}}({{{returnType}}}) {{localVariablePrefix}}apiClient.deserialize({{localVariablePrefix}}response, "{{returnContainer}}", {{returnBaseType}}.class){{/returnType}};
       }
       else {
         return {{#returnType}}null{{/returnType}};