# Exception changes
<a name="migration-exception-changes"></a>

Exception class names, their structures, and their relationships have changed. `software.amazon.awssdk.core.exception.SdkException` is the new base `Exception` class that all the other exceptions extend.

This table maps the exception class name changes.


| 1.x | 2.x | 
| --- | --- | 
|  `com.amazonaws.SdkBaseException` `com.amazonaws.AmazonClientException`  |  `software.amazon.awssdk.core.exception.SdkException`  | 
|  `com.amazonaws.SdkClientException`  |  `software.amazon.awssdk.core.exception.SdkClientException`  | 
|  `com.amazonaws.AmazonServiceException`  |  `software.amazon.awssdk.awscore.exception.AwsServiceException`  | 

The following table maps the methods on exception classes between version 1.x and 2.x.


| 1.x | 2.x | 
| --- | --- | 
|  `AmazonServiceException.getRequestId`  |  `SdkServiceException.requestId`  | 
|  `AmazonServiceException.getServiceName`  |  `AwsServiceException.awsErrorDetails().serviceName`  | 
|  `AmazonServiceException.getErrorCode`  |  `AwsServiceException.awsErrorDetails().errorCode`  | 
|  `AmazonServiceException.getErrorMessage`  |  `AwsServiceException.awsErrorDetails().errorMessage`  | 
|  `AmazonServiceException.getStatusCode`  |  `AwsServiceException.awsErrorDetails().sdkHttpResponse().statusCode`  | 
|  `AmazonServiceException.getHttpHeaders`  |  `AwsServiceException.awsErrorDetails().sdkHttpResponse().headers`  | 
|  `AmazonServiceException.rawResponse`  |  `AwsServiceException.awsErrorDetails().rawResponse`  |