//snippet-sourcedescription:[ListUsers.java demonstrates how to list all IAM users.]
//snippet-keyword:[SDK for Java 2.0]
//snippet-keyword:[Code Sample]
//snippet-service:[iam]
//snippet-sourcetype:[full-example]
//snippet-sourcedate:[03/02/2020]
//snippet-sourceauthor:[scmacdon-aws]
/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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 com.example.iam;
// snippet-start:[iam.java2.list_users.complete]
// snippet-start:[iam.java2.list_users.import]
import software.amazon.awssdk.services.iam.model.IamException;
import software.amazon.awssdk.services.iam.model.ListUsersRequest;
import software.amazon.awssdk.services.iam.model.ListUsersResponse;
import software.amazon.awssdk.services.iam.model.User;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.iam.IamClient;
// snippet-end:[iam.java2.list_users.import]
/**
 * Lists all IAM users
 */
public class ListUsers {
    public static void main(String[] args) {

        // snippet-start:[iam.java2.list_users.main]
        Region region = Region.AWS_GLOBAL;
        IamClient iam = IamClient.builder()
                .region(region)
                .build();

        try {

             boolean done = false;
             String newMarker = null;

             while(!done) {
                ListUsersResponse response;

                if (newMarker == null) {
                    ListUsersRequest request = ListUsersRequest.builder().build();
                    response = iam.listUsers(request);
                } else {
                    ListUsersRequest request = ListUsersRequest.builder()
                        .marker(newMarker).build();
                    response = iam.listUsers(request);
                }

                for(User user : response.users()) {
                 System.out.format("\n Retrieved user %s", user.userName());
                }

                if(!response.isTruncated()) {
                  done = true;
                } else {
                    newMarker = response.marker();
                }
            }
        } catch (IamException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
        System.out.println("Done");
        // snippet-end:[iam.java2.list_users.main]
    }
}
// snippet-end:[iam.java2.list_users.complete]

@@ -169,19 +169,23 @@
 ervice:%5B
-iam
+AWS IAM
 %5D%0D%0A//sni
@@ -909,58 +909,10 @@
 m;%0D%0A
-// snippet-start:%5Biam.java2.list_users.complete%5D
 %0D%0A
+
 // s
@@ -1472,62 +1472,8 @@
 %0D%0A%0D%0A
-        // snippet-start:%5Biam.java2.list_users.main%5D%0D%0A
     
@@ -1615,24 +1615,169 @@
 build();%0D%0A%0D%0A
+        listAllUsers(iam );%0D%0A    %7D%0D%0A%0D%0A    // snippet-start:%5Biam.java2.list_users.main%5D%0D%0A    public static void listAllUsers(IamClient iam ) %7B%0D%0A%0D%0A
         try 
@@ -2935,55 +2935,7 @@
  %7D%0D%0A
+
 %7D%0D%0A
-// snippet-end:%5Biam.java2.list_users.complete%5D%0D%0A

Update ListUsers.java