diff --git a/api/src/com/cloud/agent/api/Answer.java b/api/src/com/cloud/agent/api/Answer.java
index 655f4470097..9d106115d91 100755
--- a/api/src/com/cloud/agent/api/Answer.java
+++ b/api/src/com/cloud/agent/api/Answer.java
@@ -23,6 +23,7 @@ public class Answer extends Command {
     protected String details;
 
     protected Answer() {
+        this(null);
     }
 
     public Answer(Command command) {
diff --git a/core/src/com/cloud/agent/api/storage/CopyVolumeAnswer.java b/core/src/com/cloud/agent/api/storage/CopyVolumeAnswer.java
index 8c55ac3eecc..b9942b0c4b3 100644
--- a/core/src/com/cloud/agent/api/storage/CopyVolumeAnswer.java
+++ b/core/src/com/cloud/agent/api/storage/CopyVolumeAnswer.java
@@ -24,6 +24,7 @@ public class CopyVolumeAnswer extends Answer {
 	private String volumePath;
 
 	protected CopyVolumeAnswer() {
+	    super();
     }
 
 	public CopyVolumeAnswer(Command command, boolean success, String details, String volumeFolder, String volumePath) {
diff --git a/core/src/com/cloud/agent/api/storage/CreateAnswer.java b/core/src/com/cloud/agent/api/storage/CreateAnswer.java
index ab6cc038604..cd2a7c8f00b 100644
--- a/core/src/com/cloud/agent/api/storage/CreateAnswer.java
+++ b/core/src/com/cloud/agent/api/storage/CreateAnswer.java
@@ -23,6 +23,7 @@ public class CreateAnswer extends Answer {
     VolumeTO volume;
     boolean requestTemplateReload = false;
     protected CreateAnswer() {
+        super();
     }
 
     public CreateAnswer(CreateCommand cmd, VolumeTO volume) {
diff --git a/core/src/com/cloud/agent/api/storage/CreatePrivateTemplateAnswer.java b/core/src/com/cloud/agent/api/storage/CreatePrivateTemplateAnswer.java
index 83db84d8b87..37ebbfe4082 100644
--- a/core/src/com/cloud/agent/api/storage/CreatePrivateTemplateAnswer.java
+++ b/core/src/com/cloud/agent/api/storage/CreatePrivateTemplateAnswer.java
@@ -27,7 +27,9 @@ public class CreatePrivateTemplateAnswer extends Answer {
     private String _uniqueName;
     private ImageFormat _format;
 
-    public CreatePrivateTemplateAnswer() {}
+    public CreatePrivateTemplateAnswer() {
+        super();
+    }
 
     public CreatePrivateTemplateAnswer(Command cmd, boolean success, String result, String path, long virtualSize,
             long physicalSize, String uniqueName, ImageFormat format) {
diff --git a/core/src/com/cloud/agent/api/storage/ListTemplateAnswer.java b/core/src/com/cloud/agent/api/storage/ListTemplateAnswer.java
index 4155a632384..a3542cf6083 100644
--- a/core/src/com/cloud/agent/api/storage/ListTemplateAnswer.java
+++ b/core/src/com/cloud/agent/api/storage/ListTemplateAnswer.java
@@ -26,7 +26,7 @@ public class ListTemplateAnswer extends Answer  {
     private Map<String, TemplateProp> templateInfos;
 
 	public ListTemplateAnswer() {
-
+	    super();
 	}
 
 	public ListTemplateAnswer(String secUrl, Map<String, TemplateProp> templateInfos) {
diff --git a/core/src/com/cloud/agent/api/storage/ListVolumeAnswer.java b/core/src/com/cloud/agent/api/storage/ListVolumeAnswer.java
index 31ea09b7d7c..9995d4b715e 100755
--- a/core/src/com/cloud/agent/api/storage/ListVolumeAnswer.java
+++ b/core/src/com/cloud/agent/api/storage/ListVolumeAnswer.java
@@ -26,7 +26,7 @@ public class ListVolumeAnswer extends Answer {
     private Map<Long, TemplateProp> templateInfos;
 
 	public ListVolumeAnswer() {
-
+	    super();
 	}
 
 	public ListVolumeAnswer(String secUrl, Map<Long, TemplateProp> templateInfos) {
diff --git a/core/src/com/cloud/agent/api/storage/ManageVolumeAvailabilityAnswer.java b/core/src/com/cloud/agent/api/storage/ManageVolumeAvailabilityAnswer.java
index edd283090b1..e8e0d20a074 100644
--- a/core/src/com/cloud/agent/api/storage/ManageVolumeAvailabilityAnswer.java
+++ b/core/src/com/cloud/agent/api/storage/ManageVolumeAvailabilityAnswer.java
@@ -22,6 +22,7 @@ import com.cloud.agent.api.Command;
 public class ManageVolumeAvailabilityAnswer extends Answer {
 
 	protected ManageVolumeAvailabilityAnswer() {
+	    super();
     }
 
 	public ManageVolumeAvailabilityAnswer(Command command, boolean success, String details) {
diff --git a/core/src/com/cloud/agent/api/storage/PrimaryStorageDownloadAnswer.java b/core/src/com/cloud/agent/api/storage/PrimaryStorageDownloadAnswer.java
index a5a6c49e9ab..6300fee84ec 100644
--- a/core/src/com/cloud/agent/api/storage/PrimaryStorageDownloadAnswer.java
+++ b/core/src/com/cloud/agent/api/storage/PrimaryStorageDownloadAnswer.java
@@ -23,6 +23,7 @@ public class PrimaryStorageDownloadAnswer extends Answer  {
     private long templateSize = 0L;
 
 	protected PrimaryStorageDownloadAnswer() {
+	    super();
 	}
 
     public PrimaryStorageDownloadAnswer(String detail) {
diff --git a/core/src/com/cloud/agent/api/storage/ResizeVolumeAnswer.java b/core/src/com/cloud/agent/api/storage/ResizeVolumeAnswer.java
index 3434b985aaa..9d4c974e5a7 100644
--- a/core/src/com/cloud/agent/api/storage/ResizeVolumeAnswer.java
+++ b/core/src/com/cloud/agent/api/storage/ResizeVolumeAnswer.java
@@ -22,7 +22,7 @@ public class ResizeVolumeAnswer extends Answer {
     private long newSize;
 
     protected ResizeVolumeAnswer() {
-
+        super();
     }
 
     public ResizeVolumeAnswer(ResizeVolumeCommand cmd, boolean result, String details, long newSize) {
diff --git a/core/src/com/cloud/agent/api/storage/UpgradeDiskAnswer.java b/core/src/com/cloud/agent/api/storage/UpgradeDiskAnswer.java
index 9660136b9e0..b328c907553 100644
--- a/core/src/com/cloud/agent/api/storage/UpgradeDiskAnswer.java
+++ b/core/src/com/cloud/agent/api/storage/UpgradeDiskAnswer.java
@@ -21,7 +21,9 @@ import com.cloud.agent.api.Command;
 
 public class UpgradeDiskAnswer extends Answer {
 
-    public UpgradeDiskAnswer() {}
+    public UpgradeDiskAnswer() {
+        super();
+    }
 
     public UpgradeDiskAnswer(Command cmd, boolean success, String details) {
         super(cmd, success, details);