public void setLastSuccessfullyAppliedConfigurations(java.util.Collection<Configuration> lastSuccessfullyAppliedConfigurations) {
        if (lastSuccessfullyAppliedConfigurations == null) {
            this.lastSuccessfullyAppliedConfigurations = null;
            return;
        }

        this.lastSuccessfullyAppliedConfigurations = new com.amazonaws.internal.SdkInternalList<Configuration>(lastSuccessfullyAppliedConfigurations);
    }
<p>
A list of configurations that were successfully applied for an instance group last time.
</p>

@param lastSuccessfullyAppliedConfigurations
       A list of configurations that were successfully applied for an instance group last time.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/InstanceGroup.java