If there was only one bug/feature request everyone should care about, this. The expansion of HotSwap support is required for Java to stay cutting edge. Java will get passed up if it continues to require that entire web apps be redeployed after each individual class change. Please vote for this bug and pass it on to your friends. And if you don’t know what HotSwap is, vote for this bug and then try it out in your favorite IDE.
For more info, see Keith Lea’s blog entry.
on Oct 11th, 2005 at 9:10 am
Done!
on Oct 12th, 2005 at 7:01 am
BEA’s JRockit supports hotswap right now, and it works.
on Oct 13th, 2005 at 10:25 pm
Interestingly, WebLogic implemented the recursive reload on modify classloader back in like 4.0 that would let you reload not only .jsp files (at the time .jhtml files, .jsp hadn’t been invented yet) but also servlets when they changed.
http://www.weblogic.com/docs40/classdocs/API_servlet.html
The real problem in this space is not really a technology problem. Its defining what exactly does happen when the schema changes in an incompatible way.
on Oct 21st, 2005 at 6:31 am
Bob,
We do but the regular way ie no class schema change allowed (ie change method bodies only)
on Oct 31st, 2005 at 10:29 am
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on Nov 1st, 2005 at 9:33 am
Improving HotSwap Is A Dead End Road
There has been a lot of discussions about the need for more dynamicity in Java, including the need to support scripting languages. Most are around the suggestion of improving the HotSwap facility in Java. For exampe: * How badly do…