feat: add subscription 2019 10 01 preview

specification/subscription/resource-manager/readme.md

@@ -146,9 +146,23 @@ output-folder: $(azure-libraries-for-java-folder)/azure-mgmt-subscription
 
 ``` yaml $(java) && $(multiapi)
 batch:
+  - tag: package-2019-10-preview
   - tag: package-2017-11-preview
 ```
 
+### Tag: package-2019-10-preview and java
+
+These settings apply only when `--tag=package-2019-10-preview --java` is specified on the command line.
+Please also specify `--azure-libraries-for-java=<path to the root directory of your azure-sdk-for-java clone>`.
+
+``` yaml $(tag) == 'package-2019-10-preview' && $(java) && $(multiapi)
+java:
+  namespace: com.microsoft.azure.management.subscription.v2019_10_01_preview
+  output-folder: $(azure-libraries-for-java-folder)/sdk/subscription/mgmt-v2019_10_01_preview
+regenerate-manager: true
+generate-interface: true
+```
+
 ### Tag: package-2017-11-preview and java
 
 These settings apply only when `--tag=package-2017-11-preview --java` is specified on the command line.