public java.util.List<BlockDeviceMapping> getBlockDeviceMappings() {
        if (blockDeviceMappings == null) {
            blockDeviceMappings = new com.amazonaws.internal.SdkInternalList<BlockDeviceMapping>();
        }
        return blockDeviceMappings;
    }
<p>
An array of <code>BlockDeviceMapping</code> objects that specify the instance's block device mappings.
</p>

@return An array of <code>BlockDeviceMapping</code> objects that specify the instance's block device mappings.
aws-java-sdk-opsworks/src/main/java/com/amazonaws/services/opsworks/model/Instance.java