Progress.Json.JsonError class

This class raises an error when a failure specific to Progress.Json family of packages occur. For example, a JsonError is raised when a parameter is out of range or a reference is made to a non-existent property in a JsonObject.

Yes

This class contains only a private constructor; you cannot instantiate it directly.

Progress.Lang.SysError class

This class does not implement an interface.

This class does not define properties.

This class does not define methods.

This class does not contain events.