public String getEncryptionKey() {
        return this.encryptionKey;
    }
<p>
The Key Management Service customer master key (CMK) to be used for encrypting the build output artifacts.
</p>
<note>
<p>
You can use a cross-account KMS key to encrypt the build output artifacts if your service role has permission to
that key.
</p>
</note>
<p>
You can specify either the Amazon Resource Name (ARN) of the CMK or, if available, the CMK's alias (using the
format <code>alias/&lt;alias-name&gt;</code>). If you don't specify a value, CodeBuild uses the managed CMK for
Amazon Simple Storage Service (Amazon S3).
</p>

@return The Key Management Service customer master key (CMK) to be used for encrypting the build output
        artifacts.</p> <note>
        <p>
        You can use a cross-account KMS key to encrypt the build output artifacts if your service role has
        permission to that key.
        </p>
        </note>
        <p>
        You can specify either the Amazon Resource Name (ARN) of the CMK or, if available, the CMK's alias (using
        the format <code>alias/&lt;alias-name&gt;</code>). If you don't specify a value, CodeBuild uses the
        managed CMK for Amazon Simple Storage Service (Amazon S3).
aws-java-sdk-codebuild/src/main/java/com/amazonaws/services/codebuild/model/Project.java