Hi, UIMA-2.8.0 has 2 issues: https://issues.apache.org/jira/browse/UIMA-4533 and https://issues.apache.org/jira/browse/UIMA-4534
The first causes the CasAnnotationViewer (used to view CASes from the DocumentAnalyzer) to fail if a feature value is one of the built-in array types. The second causes errors if a user's type system has a type called "TypeCode". Because of these two things, we'll be doing a 2.8.1 release of uimaj very soon! -Marshall
