Hi, There is a Seam reference to a Hibernate class that recently was renamed (package changed as part of a refactoring). This is currently causing a problem (described in the jira) for the use of Seam + Hibernate 3.5.0.Beta-2. The ReaderInputStream code could probably be inlined as there isn't much left to it: " public class ReaderInputStream extends InputStream { private Reader reader; public ReaderInputStream(Reader reader) { this.reader = reader; } public int read() throws IOException { return reader.read(); } " Could JBSEAM-4474 be fixed in Seam to not depend on the Hibernate ReaderInputStream class (or something like that)? :-) Scott