public void setEncryptionKey(String encryptionKey) {
        this.encryptionKey = 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>).
</p>

@param encryptionKey
       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>).
aws-java-sdk-codebuild/src/main/java/com/amazonaws/services/codebuild/model/CreateProjectRequest.java