In today's Forums, ochkarik calls for FS extended attributes and FS notifications in Java: "There exists a class of problems that cannot be given a scalable solution with current J2SE. These include, for example, an enterprise file management solution, and a desktop search engine. Imagine we have to develop a web-based interface for file uploading, with metadata storage (author, public/private flag, category, keywords), and with concurrent access to the file repository as a regular filesystem, for further categorization, renaming/moving, sorting, FTP access (important!). Due to missing filesystem extended attributes and filesystem notification support, a J2SE solution is going to be extremely inefficient. (I'm going to explain this further if there is an interest.)"

arnaud_roques has some design ideas Re: Immutable java.lang.DateTime class: "A lot of people agree that Date should be immutable. We understand that it's not easy to define new classes as DateTime in future release of Java. But here idea of what can be easily done: 1) Put @Deprecated on setTime() of the java.util.Date class. 2) Like the java.util.Collections class, having something like java.util.Dates class, with public static Date unmodifiableDate(Date date): Returns an unmodifiable view of the specified Date. This method allows modules to provide users with "read-only" Date and attempts to modify the returned Date result in an UnsupportedOperationException. What do you think about it?"