ConvertPermissionAlgorithm throws UnsupportedOperationException for read-on

[Dhinesh dhinesh, geändert vor 11 Jahren.]

Executing ConvertPermissionAlgorithm causes:

11:25:32,019 FATAL [ConvertProcessMessageListener:35] Unable to process message {destinationName=liferay/convert_process, response=null, responseDestinationName=null, responseId=null, payload=com.liferay.portal.convert.ConvertPermissionAlgorithm, values=null}
com.liferay.portal.convert.ConvertException: java.lang.UnsupportedOperationException: Please make a copy of this read-only list before modifying it.

Can anyone help me to solve this issue?.................