@java.lang.Override
    public com.google.protobuf.ByteString getDetailsBytes() {
      java.lang.Object ref = details_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        details_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
<pre>
Provides specifics about the error.
</pre>

<code>string details = 1;</code>

@return The bytes for details.
java-workflow-executions/proto-google-cloud-workflow-executions-v1/src/main/java/com/google/cloud/workflows/executions/v1/Execution.java