Localstack bug 2231

locastack_bug_2231.java

import com.amazonaws.client.builder.AwsClientBuilder;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.identitymanagement.AmazonIdentityManagement;
import com.amazonaws.services.identitymanagement.AmazonIdentityManagementClientBuilder;
import com.amazonaws.services.identitymanagement.model.CreateRoleRequest;
import com.amazonaws.services.identitymanagement.model.EntityAlreadyExistsException;

class Scratch {
    public static void main(String[] args) {
        AwsClientBuilder.EndpointConfiguration iamEndpoint = new AwsClientBuilder.EndpointConfiguration("http://localhost:4593", Regions.DEFAULT_REGION.getName());
        AmazonIdentityManagement localStackIAMClient = AmazonIdentityManagementClientBuilder.standard().withEndpointConfiguration(iamEndpoint).build();
        try {
            String assume_policy_document = "" +
                    "        {\n" +
                    "            'Version': '2012-10-17',\n" +
                    "            'Statement': [\n" +
                    "                {\n" +
                    "                    'Action': 'sts:AssumeRole',\n" +
                    "                    'Principal': {'Service': 'lambda.amazonaws.com'}\n" +
                    "                }\n" +
                    "            ]\n" +
                    "        }";
            CreateRoleRequest createRoleRequest = new CreateRoleRequest().withRoleName("foo").withAssumeRolePolicyDocument(assume_policy_document);
            localStackIAMClient.createRole(createRoleRequest);
            localStackIAMClient.createRole(createRoleRequest);
        } catch (EntityAlreadyExistsException e) {
            // AmazonIdentityManagementException with null is thrown instead
        }
    }
}