A particular database (MetaMatrix/JBoss Enterprise Data Services Platform) returns mixed-case values from the JDBC call DatabaseMetadata.getTableTypes(), specifically: "Table", "View".

However, line 539 of org.hibernate.cfg.reveng.JDBCReader expects these values to always be upper-case:

if ( ("TABLE".equals(tableType) || "VIEW".equals(tableType)
...

Upper-case values are typically expected here (see http://java.sun.com/j2se/1.4.2/docs/api/java/sql/DatabaseMetaData.html#getTableTypes%28%29), but not required per the JDBC specification AFAIK.

Changing this logic to match on case-insensitive names allows Hibernate Tools to successfully work with MetaMatrix. For example:

if ( ("TABLE".equalsIgnoreCase(tableType) || "VIEW".equalsIgnoreCase(tableType) /*|| "SYNONYM".equals(tableType) */) ) { //||

See the forum thread for more info.

I'll attach example code that was used to rebuild hibernate-tools.jar successfully, which contains only the change described above, in case it is useful.