When the primary key of an OData entry consists of a timestamp or datetime value an odata get request returns the following error message:

java.net.URISyntaxException: Illegal character in scheme name at index n: tablename(partofkey='keyvalue',datepartofkey=2016-01-13 11:25:03.884)

For more information visit this thread on the user forums in which rhn-engineering-shawkins said:
"Actually there is an issue with our handling of building the entity id to go into the response. We are not properly encoding datatime values.''