public java.util.List<Configuration> getConfigurations() {
        if (configurations == null) {
            configurations = new com.amazonaws.internal.SdkInternalList<Configuration>();
        }
        return configurations;
    }
<p>
Applies only to Amazon EMR releases 4.x and later. The list of configurations that are supplied to the Amazon EMR
cluster.
</p>

@return Applies only to Amazon EMR releases 4.x and later. The list of configurations that are supplied to the
        Amazon EMR cluster.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/Cluster.java