Clarify KVM import template requirement

Author: andrijapanicsb

api/src/main/java/org/apache/cloudstack/api/command/admin/vm/ImportUnmanagedInstanceCmd.java

@@ -115,7 +115,7 @@ public class ImportUnmanagedInstanceCmd extends BaseAsyncCmd {
     @Parameter(name = ApiConstants.TEMPLATE_ID,
             type = CommandType.UUID,
             entityType = TemplateResponse.class,
-            description = "The ID of the Template for the Instance")
+            description = "The ID of the Template for the Instance. Required when importing an unmanaged KVM Instance.")
     private Long templateId;
 
     @Parameter(name = ApiConstants.SERVICE_OFFERING_ID,

api/src/test/java/org/apache/cloudstack/api/command/admin/vm/ImportUnmanagedInstanceCmdTest.java

@@ -0,0 +1,36 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package org.apache.cloudstack.api.command.admin.vm;
+
+import java.lang.reflect.Field;
+
+import org.apache.cloudstack.api.Parameter;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ImportUnmanagedInstanceCmdTest {
+
+    @Test
+    public void testTemplateIdDescriptionMentionsKvmRequirement() throws NoSuchFieldException {
+        Field templateIdField = ImportUnmanagedInstanceCmd.class.getDeclaredField("templateId");
+        Parameter parameter = templateIdField.getAnnotation(Parameter.class);
+
+        Assert.assertNotNull(parameter);
+        Assert.assertTrue(parameter.description().contains("Required when importing an unmanaged KVM Instance."));
+    }
+}