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Error: dynamodb mapper save not persisting

What's Causing This Error

You may run into this error in the AWS Java SDK if the endpoint and the region have not been configured for the Document Client instance.

Solution: Here's How To Resolve It

To resolve the error, upgrade your Java SDK to the latest version and provide the correct endpoint and region during instantiation, as shown below.

// credentials -> your credentials object
AmazonDynamoDBClient client = new AmazonDynamoDBClient(credentials);
client.setEndpoint("your-endpoint");
client.setRegion(Region.getRegion(Regions.US_WEST_2));

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