Alertsmanagement: updated java tags and added java readme (#6498)

* generates java code into azure-mgmt-alertsmanagement folder

* updated alertsmanagement java tags

specification/alertsmanagement/resource-manager/readme.java.md

@@ -0,0 +1,76 @@
+## Java
+
+These settings apply only when `--java` is specified on the command line.
+Please also specify `--azure-libraries-for-java-folder=<path to the root directory of your azure-libraries-for-java clone>`.
+
+``` yaml $(java)
+azure-arm: true
+fluent: true
+namespace: com.microsoft.azure.management.alertsmanagement
+license-header: MICROSOFT_MIT_NO_CODEGEN
+payload-flattening-threshold: 1
+output-folder: $(azure-libraries-for-java-folder)/azure-mgmt-alertsmanagement
+```
+
+### Java multi-api
+
+``` yaml $(java) && $(multiapi)
+batch:
+  - tag: package-preview-2019-05
+  - tag: package-2019-03
+  - tag: package-2018-05
+  - tag: package-2018-05-preview
+```
+
+### Tag: package-preview-2019-05 and java
+
+These settings apply only when `--tag=package-preview-2019-05 --java` is specified on the command line.
+Please also specify `--azure-libraries-for-java-folder=<path to the root directory of your azure-sdk-for-java clone>`.
+
+``` yaml $(tag)=='package-preview-2019-05' && $(java) && $(multiapi)
+java:
+  namespace: com.microsoft.azure.management.alertsmanagement.v2019_05_05_preview
+  output-folder: $(azure-libraries-for-java-folder)/alertsmanagement/resource-manager/v2019_05_05_preview
+regenerate-manager: true
+generate-interface: true
+```
+
+### Tag: package-2019-03 and java
+
+These settings apply only when `--tag=package-2019-03 --java` is specified on the command line.
+Please also specify `--azure-libraries-for-java-folder=<path to the root directory of your azure-sdk-for-java clone>`.
+
+``` yaml $(tag)=='package-2019-03' && $(java) && $(multiapi)
+java:
+  namespace: com.microsoft.azure.management.alertsmanagement.v2019_03_01
+  output-folder: $(azure-libraries-for-java-folder)/alertsmanagement/resource-manager/v2019_03_01
+regenerate-manager: true
+generate-interface: true
+```
+
+
+### Tag: package-2018-05 and java
+
+These settings apply only when `--tag=package-2018-05 --java` is specified on the command line.
+Please also specify `--azure-libraries-for-java-folder=<path to the root directory of your azure-sdk-for-java clone>`.
+
+``` yaml $(tag)=='package-2018-05' && $(java) && $(multiapi)
+java:
+  namespace: com.microsoft.azure.management.alertsmanagement.v2018_05_05
+  output-folder: $(azure-libraries-for-java-folder)/alertsmanagement/resource-manager/v2018_05_05
+regenerate-manager: true
+generate-interface: true
+```
+
+### Tag: package-2018-05-preview and java
+
+These settings apply only when `--tag=package-2018-05-preview --java` is specified on the command line.
+Please also specify `--azure-libraries-for-java-folder=<path to the root directory of your azure-sdk-for-java clone>`.
+
+``` yaml $(tag)=='package-2018-05-preview' && $(java) && $(multiapi)
+java:
+  namespace: com.microsoft.azure.management.alertsmanagement.v2018_05_05_preview
+  output-folder: $(azure-libraries-for-java-folder)/alertsmanagement/resource-manager/v2018_05_05_preview
+regenerate-manager: true
+generate-interface: true
+```

specification/alertsmanagement/resource-manager/readme.md

@@ -141,15 +141,4 @@ See configuration in [readme.go.md](./readme.go.md)
 
 ## Java
 
-These settings apply only when `--java` is specified on the command line.
-Please also specify `--azure-libraries-for-java-folder=<path to the root directory of your azure-libraries-for-java clone>`.
-
-``` yaml $(java)
-java:
-  azure-arm: true
-  fluent: true
-  namespace: com.microsoft.azure.management.alertsmanagement
-  license-header: MICROSOFT_MIT_NO_CODEGEN
-  payload-flattening-threshold: 1
-  output-folder: $(azure-libraries-for-java-folder)/azure-mgmt-alertsmanagement
-```
+See configuration in [readme.java.md](./readme.java.md)