Unable to load AWS credentials from any provider in the chain after upgrading to tomcat 8.5

Question

Our legacy java web application runs on aws elastic beanstalk, which assumes IAM role to access SES. Today after upgrading elastic beanstalk environment from Tomcat 7 to Tomcat 8 and spring libraries from 3.2.1 to 4.0.0, SES client has stopped working. Below is code which was working fine until yesterday to send out emails:

AmazonSimpleEmailService client = AmazonSimpleEmailServiceClientBuilder.standard()
                    .withCredentials(com.amazonaws.auth.DefaultAWSCredentialsProviderChain.getInstance())
                    .withRegion(Regions.US_EAST_1).build();

It is throwing following exception

SEVERE [http-nio-8080-exec-8] The email was not sent.
    com.amazonaws.SdkClientException: Unable to load AWS credentials from any provider in the chain: [EnvironmentVariableCredentialsProvider: Unable to load AWS credentials from environment variables (AWS_ACCESS_KEY_ID (or AWS_ACCESS_KEY) and AWS_SECRET_KEY (or AWS_SECRET_ACCESS_KEY)), SystemPropertiesCredentialsProvider: Unable to load AWS credentials from Java system properties (aws.accessKeyId and aws.secretKey), com.amazonaws.auth.profile.ProfileCredentialsProvider@79fc4ef8: profile file cannot be null, com.amazonaws.auth.EC2ContainerCredentialsProviderWrapper@33e618b9: Unauthorized (Service: null; Status Code: 401; Error Code: null; Request ID: null)]

I have tried adding AWS_ACCESS_KEY_ID and AWS_SECRET_KEY as environment variables as well but it didn't work. Searched web, checked aws docs but without anyluck.

Answer 1

I resolved this by upgrading to the latest AWS SDK version.