public void setDryRun(Boolean dryRun) {
        this.dryRun = dryRun;
    }
<p>
Used for testing whether the Development schema provided is backwards compatible, or not, with the publish schema
provided by the user to be upgraded. If schema compatibility fails, an exception would be thrown else the call
would succeed. This parameter is optional and defaults to false.
</p>

@param dryRun
       Used for testing whether the Development schema provided is backwards compatible, or not, with the publish
       schema provided by the user to be upgraded. If schema compatibility fails, an exception would be thrown
       else the call would succeed. This parameter is optional and defaults to false.
aws-java-sdk-clouddirectory/src/main/java/com/amazonaws/services/clouddirectory/model/UpgradePublishedSchemaRequest.java