for(String serverGroup : serverGroups) {
DefaultOperationRequestBuilder builder = new DefaultOperationRequestBuilder();
ModelNode request;
try {
builder.setOperationName(Util.READ_CHILDREN_NAMES);
builder.addNode(Util.SERVER_GROUP, serverGroup);
builder.addProperty("child-type", Util.DEPLOYMENT);
request = builder.buildRequest();
} catch (OperationFormatException e) {
throw new IllegalStateException("Failed to build operation", e);
}