Is this statement true for Java 1.6 and beyond ( http://forums.whirlpool.net.au/archive/754353) ? In fact, it is perfectly permissible for a Java VM to *never* call it. Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.openjdk.java.net/pipermail/hotspot-gc-use/attachments/20110417/a506f138/attachment.html