diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/StaticHtmlGenerator.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/StaticHtmlGenerator.java
index a22010e51fb..6942b3b2996 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/StaticHtmlGenerator.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/StaticHtmlGenerator.java
@@ -170,6 +170,14 @@ public class StaticHtmlGenerator extends DefaultCodegen implements CodegenConfig
         return markdownConverter.toHtml(input);
     }
 
+    // DefaultCodegen converts model names to UpperCamelCase
+    // but for static HTML, we want the names to be preserved as coded in the OpenApi
+    // so HTML links work
+    @Override
+    public String toModelName(final String name) {
+        return name;
+    }
+
     public void preprocessSwagger(Swagger swagger) {
         Info info = swagger.getInfo();
         info.setDescription(toHtml(info.getDescription()));
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/jersey2/ApiClient.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/jersey2/ApiClient.mustache
index d44d724454e..759e6708aa1 100644
--- a/modules/swagger-codegen/src/main/resources/Java/libraries/jersey2/ApiClient.mustache
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/jersey2/ApiClient.mustache
@@ -25,6 +25,7 @@ import java.io.InputStream;
 
 {{^supportJava6}}
 import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
 {{/supportJava6}}
 {{#supportJava6}}
 import org.apache.commons.io.FileUtils;
@@ -581,7 +582,7 @@ public class ApiClient {
     try {
       File file = prepareDownloadFile(response);
 {{^supportJava6}}
-      Files.copy(response.readEntity(InputStream.class), file.toPath());
+      Files.copy(response.readEntity(InputStream.class), file.toPath(), StandardCopyOption.REPLACE_EXISTING);
 {{/supportJava6}}
 {{#supportJava6}}
       // Java6 falls back to commons.io for file copying
diff --git a/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationCore.mustache b/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationCore.mustache
new file mode 100644
index 00000000000..66c52583212
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationCore.mustache
@@ -0,0 +1 @@
+{{#pattern}} @Pattern(regexp="{{{pattern}}}"){{/pattern}}{{#minLength}}{{#maxLength}} @Size(min={{minLength}},max={{maxLength}}){{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}} @Size(min={{minLength}}){{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}} @Size(max={{maxLength}}){{/maxLength}}{{/minLength}}{{#minItems}}{{#maxItems}} @Size(min={{minItems}},max={{maxItems}}){{/maxItems}}{{/minItems}}{{#minItems}}{{^maxItems}} @Size(min={{minItems}}){{/maxItems}}{{/minItems}}{{^minItems}}{{#maxItems}}   @Size(max={{maxItems}}){{/maxItems}}{{/minItems}}{{#minimum}} @Min({{minimum}}){{/minimum}}{{#maximum}} @Max({{maximum}}){{/maximum}}
\ No newline at end of file
diff --git a/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationPathParams.mustache b/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationPathParams.mustache
index 0b4d31b4bf1..051bd53c0a5 100644
--- a/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationPathParams.mustache
+++ b/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationPathParams.mustache
@@ -1 +1 @@
-{{! PathParam is always required, no @NotNull necessary }}{{#pattern}} @Pattern(regexp="{{{pattern}}}"){{/pattern}}{{#minLength}}{{#maxLength}} @Size(min={{minLength}},max={{maxLength}}){{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}} @Size(min={{minLength}}){{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}} @Size(max={{maxLength}}){{/maxLength}}{{/minLength}}{{#minItems}}{{#maxItems}} @Size(min={{minItems}},max={{maxItems}}){{/maxItems}}{{/minItems}}{{#minItems}}{{^maxItems}} @Size(min={{minItems}}){{/maxItems}}{{/minItems}}{{^minItems}}{{#maxItems}}   @Size(max={{maxItems}}){{/maxItems}}{{/minItems}}{{#minimum}} @Min({{minimum}}){{/minimum}}{{#maximum}} @Max({{maximum}}){{/maximum}}
\ No newline at end of file
+{{! PathParam is always required, no @NotNull necessary }}{{>beanValidationCore}}
\ No newline at end of file
diff --git a/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationQueryParams.mustache b/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationQueryParams.mustache
index 4bad1be6368..0f99bffde09 100644
--- a/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationQueryParams.mustache
+++ b/modules/swagger-codegen/src/main/resources/JavaPlayFramework/beanValidationQueryParams.mustache
@@ -1 +1 @@
-{{#required}} @NotNull{{/required}}{{#pattern}} @Pattern(regexp="{{{pattern}}}"){{/pattern}}{{#minLength}}{{#maxLength}} @Size(min={{minLength}},max={{maxLength}}){{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}} @Size(min={{minLength}}){{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}} @Size(max={{maxLength}}){{/maxLength}}{{/minLength}}{{#minItems}}{{#maxItems}} @Size(min={{minItems}},max={{maxItems}}){{/maxItems}}{{/minItems}}{{#minItems}}{{^maxItems}} @Size(min={{minItems}}){{/maxItems}}{{/minItems}}{{^minItems}}{{#maxItems}}   @Size(max={{maxItems}}){{/maxItems}}{{/minItems}}{{#minimum}} @Min({{minimum}}){{/minimum}}{{#maximum}} @Max({{maximum}}){{/maximum}}
\ No newline at end of file
+{{#required}} @NotNull {{/required}}{{>beanValidationCore}}
\ No newline at end of file
diff --git a/modules/swagger-codegen/src/main/resources/JavaPlayFramework/conversionBegin.mustache b/modules/swagger-codegen/src/main/resources/JavaPlayFramework/conversionBegin.mustache
index a931bc896f8..1f030198921 100644
--- a/modules/swagger-codegen/src/main/resources/JavaPlayFramework/conversionBegin.mustache
+++ b/modules/swagger-codegen/src/main/resources/JavaPlayFramework/conversionBegin.mustache
@@ -1 +1 @@
-{{#isBoolean}}Boolean.getBoolean({{/isBoolean}}{{#isInteger}}Integer.parseInt({{/isInteger}}{{#isDouble}}Double.parseDouble({{/isDouble}}{{#isLong}}Long.parseLong({{/isLong}}{{#isFloat}}Float.parseFloat({{/isFloat}}{{#isString}}(String){{/isString}}
\ No newline at end of file
+{{#isBoolean}}Boolean.valueOf({{/isBoolean}}{{#isInteger}}Integer.parseInt({{/isInteger}}{{#isDouble}}Double.parseDouble({{/isDouble}}{{#isLong}}Long.parseLong({{/isLong}}{{#isFloat}}Float.parseFloat({{/isFloat}}{{#isString}}(String){{/isString}}
\ No newline at end of file
diff --git a/samples/client/petstore/java/jersey2-java6/.swagger-codegen/VERSION b/samples/client/petstore/java/jersey2-java6/.swagger-codegen/VERSION
new file mode 100644
index 00000000000..7fea99011a6
--- /dev/null
+++ b/samples/client/petstore/java/jersey2-java6/.swagger-codegen/VERSION
@@ -0,0 +1 @@
+2.2.3-SNAPSHOT
\ No newline at end of file
diff --git a/samples/client/petstore/java/jersey2/.swagger-codegen/VERSION b/samples/client/petstore/java/jersey2/.swagger-codegen/VERSION
new file mode 100644
index 00000000000..7fea99011a6
--- /dev/null
+++ b/samples/client/petstore/java/jersey2/.swagger-codegen/VERSION
@@ -0,0 +1 @@
+2.2.3-SNAPSHOT
\ No newline at end of file
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/ApiClient.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/ApiClient.java
index 2878363c980..d3e9924e8eb 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/ApiClient.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/ApiClient.java
@@ -24,6 +24,7 @@ import java.io.IOException;
 import java.io.InputStream;
 
 import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Map;
@@ -575,7 +576,7 @@ public class ApiClient {
   public File downloadFileFromResponse(Response response) throws ApiException {
     try {
       File file = prepareDownloadFile(response);
-      Files.copy(response.readEntity(InputStream.class), file.toPath());
+      Files.copy(response.readEntity(InputStream.class), file.toPath(), StandardCopyOption.REPLACE_EXISTING);
       return file;
     } catch (IOException e) {
       throw new ApiException(e);
diff --git a/samples/html/.swagger-codegen/VERSION b/samples/html/.swagger-codegen/VERSION
new file mode 100644
index 00000000000..7fea99011a6
--- /dev/null
+++ b/samples/html/.swagger-codegen/VERSION
@@ -0,0 +1 @@
+2.2.3-SNAPSHOT
\ No newline at end of file
diff --git a/samples/server/petstore/java-play-framework/.swagger-codegen/VERSION b/samples/server/petstore/java-play-framework/.swagger-codegen/VERSION
new file mode 100644
index 00000000000..7fea99011a6
--- /dev/null
+++ b/samples/server/petstore/java-play-framework/.swagger-codegen/VERSION
@@ -0,0 +1 @@
+2.2.3-SNAPSHOT
\ No newline at end of file