public Builder mergeEncryptionSpec(com.google.cloud.vertexai.api.EncryptionSpec value) {
      if (encryptionSpecBuilder_ == null) {
        if (((bitField0_ & 0x00000200) != 0)
            && encryptionSpec_ != null
            && encryptionSpec_
                != com.google.cloud.vertexai.api.EncryptionSpec.getDefaultInstance()) {
          getEncryptionSpecBuilder().mergeFrom(value);
        } else {
          encryptionSpec_ = value;
        }
      } else {
        encryptionSpecBuilder_.mergeFrom(value);
      }
      if (encryptionSpec_ != null) {
        bitField0_ |= 0x00000200;
        onChanged();
      }
      return this;
    }
<pre>
Customer-managed encryption key spec for an Endpoint. If set, this
Endpoint and all sub-resources of this Endpoint will be secured by
this key.
</pre>

<code>.google.cloud.vertexai.v1.EncryptionSpec encryption_spec = 10;</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Endpoint.java