[ https://issues.jboss.org/browse/WFCORE-1790?page=com.atlassian.jira.plugi... ] Brian Stansberry commented on WFCORE-1790: ------------------------------------------ An attribute of type OBJECT with a value-type of STRING is equivalent to a Map<String,String>. A Map has no predefined set of valid keys, so there is no full description of keys and values. value-type – ModelType or complex structure – Only present if type is LIST or OBJECT. If all elements in the LIST or all the values of the OBJECT type are of the same type, this will be one of the ModelType enums BIG_DECIMAL, BIG_INTEGER, BOOLEAN, BYTES, DOUBLE, INT, LONG, STRING. Otherwise, value-type will detail the structure of the attribute value, enumerating the value's fields and the type of their value. So, if the type of the ModelNode for the value-type description is ModelType.TYPE, then the attribute is a Map<String, X> where X is indicated by the enum value. If the type of the ModelNode for the value-type description is ModelType.OBJECT, then the keys in the object are the legal fields and the values are the description of the field. -- This message was sent by Atlassian JIRA (v6.4.11#64026)