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Java Forum / General / September 2009JDK 1.5.0_21 released
Even though it is no longer officially supported, JDK/JRE 1.5.0_21 was just released.  SignatureRoedy Green Canadian Mind Products http://mindprod.com "I mean, source code in files; how quaint, how seventies!" ~ Kent Beck (born: 1961 age: 48), evangelist for extreme programming. > Even though it is no longer officially supported, JDK/JRE 1.5.0_21 was > just released. But it is still officially supported. SignatureLew On Tue, 08 Sep 2009 14:14:59 -0700, Roedy Green <see_website@mindprod.com.invalid> wrote, quoted or indirectly quoted someone who said : >Even though it is no longer officially supported, JDK/JRE 1.5.0_21 was >just released. Oops. JDK version 1.4 reached its end of life on 2008-10-30, and Sun will no longer support it. JDK version 1.5 is slated for end of life 2009-10-30. End of life does not mean all copies of JDK version 1.5 will suddenly turn into pumpkins. Apple will still offer its JVM to download. Sun will still offer it in the archives. It is just that Sun will no longer fix any bugs in it. To get the bug fixes, you must go to version 1.6. SignatureRoedy Green Canadian Mind Products http://mindprod.com "I mean, source code in files; how quaint, how seventies!" ~ Kent Beck (born: 1961 age: 48), evangelist for extreme programming. > Even though it is no longer officially supported, JDK/JRE 1.5.0_21 was > just released. Enterprise customers (as in buying Sun support) will demand 1.5 maintenance for a while. 1.6 requires source code changes, retuning, and rediscovery of what bugs will be showing up. Where I work, it wasn't until last year that public builds of 1.5 were free of catastrophic bugs with no workarounds. A 1.6 update will have to wait until business is slow. SignatureI will not see your reply if you use Google. >> Even though it is no longer officially supported, JDK/JRE 1.5.0_21 was >> just released. > > Enterprise customers (as in buying Sun support) will demand 1.5 > maintenance for a while. 1.6 requires source code changes, retuning, What code changes? > and rediscovery of what bugs will be showing up. Where I work, it > wasn't until last year that public builds of 1.5 were free of > catastrophic bugs with no workarounds. A 1.6 update will have to wait > until business is slow. Google "technical debt". Hopefully your business is too successful ever to be slow. SignatureLew > >> Even though it is no longer officially supported, JDK/JRE 1.5.0_21 was > >> just released. [quoted text clipped - 3 lines] > > What code changes? Primarily, JDBC delegates are not compatible. 1.6 defines new JDBC methods with return types that don't exist in Java 1.5. Proxies still work but they're not always appropriate. > > and rediscovery of what bugs will be showing up. Where I work, it > > wasn't until last year that public builds of 1.5 were free of [quoted text clipped - 4 lines] > be > slow. When I say that JVMs have "catastrophic bugs", I really mean catastrophic. We needed custom builds of 1.5 to avoid a file descriptor bug that routed data streams completely randomly if Solaris NFS was in use. Files, JDBC connections, HTTP connections - all mixing together. And then there have been numerous GC bugs where a collector stops the JVM for 2 minutes... 5 minutes... 10000 minutes. Even today, Java 1.5 needs lots of -XX options to fix CMS self-tuning bugs. There is no technical debt when no Java 1.6 features are needed yet. The update will happen when it's safe for business. SignatureI will not see your reply if you use Google. > When I say that JVMs have "catastrophic bugs", I really mean > catastrophic. We needed custom builds of 1.5 to avoid a file descriptor [quoted text clipped - 3 lines] > JVM for 2 minutes... 5 minutes... 10000 minutes. Even today, Java 1.5 > needs lots of -XX options to fix CMS self-tuning bugs. Yep. While we don't measure these things ourselves, our releases have to be able to run on 1.4 because of customer sentiment that 1.4.2 was the last "stable" release. We only ship code that uses post-1.4 Java features if it's done via reflection. --Mike Amling Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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