diff --git a/modules/openapi-generator/src/main/resources/Java/apiException.mustache b/modules/openapi-generator/src/main/resources/Java/apiException.mustache
index 966663f805f..31d2a807e2a 100644
--- a/modules/openapi-generator/src/main/resources/Java/apiException.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/apiException.mustache
@@ -37,7 +37,7 @@ public class ApiException extends{{#useRuntimeException}} RuntimeException {{/us
     }
 
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this("Response Code: " + code + " Response Body: " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     public ApiException(int code, String message) {
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/apiException.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/apiException.mustache
index 3050315676f..dd224d58229 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/apiException.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/apiException.mustache
@@ -101,7 +101,7 @@ public class ApiException extends{{#useRuntimeException}} RuntimeException {{/us
      * @param responseBody the response body
      */
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this("Response Code: " + code + " Response Body: " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     /**
diff --git a/samples/client/others/java/okhttp-gson-streaming/src/main/java/org/openapitools/client/ApiException.java b/samples/client/others/java/okhttp-gson-streaming/src/main/java/org/openapitools/client/ApiException.java
index a5343e43d5c..f8f5fb86aa4 100644
--- a/samples/client/others/java/okhttp-gson-streaming/src/main/java/org/openapitools/client/ApiException.java
+++ b/samples/client/others/java/okhttp-gson-streaming/src/main/java/org/openapitools/client/ApiException.java
@@ -99,7 +99,7 @@ public class ApiException extends Exception {
      * @param responseBody the response body
      */
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this(code + " " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     /**
diff --git a/samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/ApiException.java b/samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/ApiException.java
index aad89dd6bd8..e37e3896422 100644
--- a/samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/ApiException.java
+++ b/samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/ApiException.java
@@ -48,7 +48,7 @@ public class ApiException extends Exception {
     }
 
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this(code + " " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     public ApiException(int code, String message) {
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/ApiException.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/ApiException.java
index aad89dd6bd8..e37e3896422 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/ApiException.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/ApiException.java
@@ -48,7 +48,7 @@ public class ApiException extends Exception {
     }
 
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this(code + " " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     public ApiException(int code, String message) {
diff --git a/samples/client/petstore/java/okhttp-gson-dynamicOperations/src/main/java/org/openapitools/client/ApiException.java b/samples/client/petstore/java/okhttp-gson-dynamicOperations/src/main/java/org/openapitools/client/ApiException.java
index d181c0ff401..a7e1544a7b2 100644
--- a/samples/client/petstore/java/okhttp-gson-dynamicOperations/src/main/java/org/openapitools/client/ApiException.java
+++ b/samples/client/petstore/java/okhttp-gson-dynamicOperations/src/main/java/org/openapitools/client/ApiException.java
@@ -99,7 +99,7 @@ public class ApiException extends Exception {
      * @param responseBody the response body
      */
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this(code + " " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     /**
diff --git a/samples/client/petstore/java/okhttp-gson-group-parameter/src/main/java/org/openapitools/client/ApiException.java b/samples/client/petstore/java/okhttp-gson-group-parameter/src/main/java/org/openapitools/client/ApiException.java
index 326973a6821..7f86ca9ae65 100644
--- a/samples/client/petstore/java/okhttp-gson-group-parameter/src/main/java/org/openapitools/client/ApiException.java
+++ b/samples/client/petstore/java/okhttp-gson-group-parameter/src/main/java/org/openapitools/client/ApiException.java
@@ -99,7 +99,7 @@ public class ApiException extends Exception {
      * @param responseBody the response body
      */
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this(code + " " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     /**
diff --git a/samples/client/petstore/java/okhttp-gson-parcelableModel/src/main/java/org/openapitools/client/ApiException.java b/samples/client/petstore/java/okhttp-gson-parcelableModel/src/main/java/org/openapitools/client/ApiException.java
index d181c0ff401..a7e1544a7b2 100644
--- a/samples/client/petstore/java/okhttp-gson-parcelableModel/src/main/java/org/openapitools/client/ApiException.java
+++ b/samples/client/petstore/java/okhttp-gson-parcelableModel/src/main/java/org/openapitools/client/ApiException.java
@@ -99,7 +99,7 @@ public class ApiException extends Exception {
      * @param responseBody the response body
      */
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this(code + " " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     /**
diff --git a/samples/client/petstore/java/okhttp-gson-swagger1/src/main/java/org/openapitools/client/ApiException.java b/samples/client/petstore/java/okhttp-gson-swagger1/src/main/java/org/openapitools/client/ApiException.java
index 326973a6821..7f86ca9ae65 100644
--- a/samples/client/petstore/java/okhttp-gson-swagger1/src/main/java/org/openapitools/client/ApiException.java
+++ b/samples/client/petstore/java/okhttp-gson-swagger1/src/main/java/org/openapitools/client/ApiException.java
@@ -99,7 +99,7 @@ public class ApiException extends Exception {
      * @param responseBody the response body
      */
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this(code + " " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     /**
diff --git a/samples/client/petstore/java/okhttp-gson/src/main/java/org/openapitools/client/ApiException.java b/samples/client/petstore/java/okhttp-gson/src/main/java/org/openapitools/client/ApiException.java
index d181c0ff401..a7e1544a7b2 100644
--- a/samples/client/petstore/java/okhttp-gson/src/main/java/org/openapitools/client/ApiException.java
+++ b/samples/client/petstore/java/okhttp-gson/src/main/java/org/openapitools/client/ApiException.java
@@ -99,7 +99,7 @@ public class ApiException extends Exception {
      * @param responseBody the response body
      */
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this(code + " " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     /**
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/ApiException.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/ApiException.java
index aad89dd6bd8..e37e3896422 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/ApiException.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/ApiException.java
@@ -48,7 +48,7 @@ public class ApiException extends Exception {
     }
 
     public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
-        this((String) null, (Throwable) null, code, responseHeaders, responseBody);
+        this(code + " " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
     }
 
     public ApiException(int code, String message) {