Merge branch 'master' of https://github.com/wso2/carbon-device-mgt

components/certificate-mgt/org.wso2.carbon.certificate.mgt.cert.admin.api/src/main/java/org/wso2/carbon/certificate/mgt/cert/jaxrs/api/impl/CertificateManagementAdminServiceImpl.java

@@ -122,11 +122,14 @@ public class CertificateManagementAdminServiceImpl implements CertificateManagem
         try {
             boolean status = certificateService.removeCertificate(serialNumber);
             if (!status) {
-                Response.status(Response.Status.NOT_FOUND).entity("No certificate is found with the given " +
+                return Response.status(Response.Status.NOT_FOUND).entity(
-                        "serial number '" + serialNumber + "'");
+                        "No certificate is found with the given " +
+                                "serial number '" + serialNumber + "'").build();
+            } else {
+                return Response.status(Response.Status.OK).entity(
+                        "Certificate that carries the serial number '" +
+                                serialNumber + "' has been removed").build();
             }
-            return Response.status(Response.Status.OK).entity("Certificate that carries the serial number '" +
-                    serialNumber + "' has been removed").build();
         } catch (CertificateManagementException e) {
             String msg = "Error occurred while converting PEM file to X509Certificate";
             log.error(msg, e);
@@ -135,4 +138,4 @@ public class CertificateManagementAdminServiceImpl implements CertificateManagem
         }
     }
 
-}
+}