diff --git a/fluent-tests/Initialize-Tests.ps1 b/fluent-tests/Initialize-Tests.ps1
index 430171683e..b88664db0b 100644
--- a/fluent-tests/Initialize-Tests.ps1
+++ b/fluent-tests/Initialize-Tests.ps1
@@ -74,7 +74,7 @@ $job = @(
     "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS ./swagger/readme.network.md --namespace=com.azure.mgmttest.network",
 
     # error response that is subclass of ManagementException
-    "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS ./swagger/readme.appservice.md --namespace=com.azure.mgmttest.appservice",
+    "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS ./swagger/readme.appservice.md --namespace=com.azure.mgmttest.appservice --stream-style-serialization=false",
 
     # multiple inheritance
     "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS --input-file=https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2019-12-12/cosmos-db.json --namespace=com.azure.mgmttest.cosmos",
@@ -91,7 +91,7 @@ $job = @(
     "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS --input-file=https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/cdn/resource-manager/Microsoft.Cdn/stable/2020-09-01/afdx.json --namespace=com.azure.mgmttest.afdx",
 
     # nested x-ms-flatten from superclass in ExtendedProduct
-    "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS --input-file=https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/azurestack/resource-manager/Microsoft.AzureStack/preview/2020-06-01-preview/Product.json --namespace=com.azure.mgmttest.azurestack",
+    "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS --input-file=https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/azurestack/resource-manager/Microsoft.AzureStack/preview/2020-06-01-preview/Product.json --namespace=com.azure.mgmttest.azurestack --stream-style-serialization=false",
 
     # conflict property name from 2 x-ms-flatten in LabDetails and LabProperties
     "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS --input-file=https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/education/resource-manager/Microsoft.Education/preview/2021-12-01-preview/education.json --namespace=com.azure.mgmttest.education",
@@ -100,7 +100,7 @@ $job = @(
     "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS --input-file=https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/hybridnetwork/resource-manager/Microsoft.HybridNetwork/stable/2021-05-01/device.json --namespace=com.azure.mgmttest.hybridnetwork",
 
     # flatten the empty model which has non-empty parent model
-    "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS --input-file=https://github.com/Azure/azure-rest-api-specs/blob/main/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-09-01-preview/dataCollectionRules_API.json --namespace=com.azure.mgmttest.monitor",
+    "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS --input-file=https://github.com/Azure/azure-rest-api-specs/blob/main/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-09-01-preview/dataCollectionRules_API.json --namespace=com.azure.mgmttest.monitor --stream-style-serialization=false",
 
     # extract systemData from Resource
     "--version=$AUTOREST_CORE_VERSION $FLUENT_ARGUMENTS --input-file=https://raw.githubusercontent.com/Azure/azure-rest-api-specs/29f3116d3ce31f2125d1e2cfb92d6511fcb01c41/specification/postgresqlhsc/resource-manager/Microsoft.DBforPostgreSQL/stable/2022-11-08/postgresqlhsc.json --java.namespace=com.azure.mgmttest.postgresqlhsc",
diff --git a/fluent-tests/src/test/java/com/azure/mgmttest/RuntimeTests.java b/fluent-tests/src/test/java/com/azure/mgmttest/RuntimeTests.java
index e0fde5f302..3d371d17c7 100644
--- a/fluent-tests/src/test/java/com/azure/mgmttest/RuntimeTests.java
+++ b/fluent-tests/src/test/java/com/azure/mgmttest/RuntimeTests.java
@@ -126,6 +126,7 @@ public void testWebException() throws IOException {
         Assertions.assertNotNull(webError.getDetails());
         Assertions.assertEquals(1, webError.getDetails().size());
         Assertions.assertEquals("InnerError", webError.getDetails().get(0).getCode());
+        Assertions.assertEquals("Deployment error.", webError.getInnererror());
 
         GraphErrorException graphException = new GraphErrorException("mock graph error", null);
         Assertions.assertFalse((Object) graphException instanceof ManagementException);
diff --git a/fluentgen/readme.md b/fluentgen/readme.md
index 6cafca0676..c88c494650 100755
--- a/fluentgen/readme.md
+++ b/fluentgen/readme.md
@@ -76,5 +76,5 @@ required-parameter-client-methods: true
 client-flattened-annotation-target: none
 null-byte-array-maps-to-empty-array: true
 graal-vm-config: true
-stream-style-serialization: false
+stream-style-serialization: true
 ```
diff --git a/package-lock.json b/package-lock.json
index a5f4c06c6b..9352f86650 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@autorest/java",
-  "version": "4.1.29",
+  "version": "4.1.31",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@autorest/java",
-      "version": "4.1.29",
+      "version": "4.1.31",
       "license": "MIT",
       "devDependencies": {
         "@microsoft.azure/autorest.testserver": "3.3.49",
diff --git a/package.json b/package.json
index f2aa709b90..70081ee169 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@autorest/java",
-  "version": "4.1.30",
+  "version": "4.1.31",
   "description": "The Java extension for classic generators in AutoRest.",
   "scripts": {
     "autorest": "autorest",