JDK 7-watch


For those of you who track these things, we are on Java SE 6, Sun's JRE is at version 6 Update 12.

The next JRE update of note will be 6u14 (in early access), which includes some handy performance impovements, the G1 collector (for use, but not yet the default collector), and some preparatory changes like loading anonymous classes which will turbo-charge dynamic languages in JDK 7.

And of course the next major update will be JDK 7, so you may be tracking the latest JDK 7 builds, which have been including API additions ahead of the release for some time. Like changes to the language model as Joe summarizes here. Or the new ability to close() a URLClassloader since b46 that Michael blogged about here.

Or, more significantly, the inclusion of latest draft version of JSR 203, in particular the new filesystem API, one of the larger features on the list for JDK 7.
Comments:

Thanks for the info. Do you know, is JRE 6u13 still slotted for sometime this month?

Posted by Ben on March 19, 2009 at 12:18 AM PDT #

yes Ben, should be going out next week.

Posted by Daniel Coward on March 19, 2009 at 09:43 AM PDT #

Hi Danny,
if there is one thing Swing ought to fit by now is the clipboard notification. It is in mess now, and the only way to do clipboard notification now is to do polling which is inefficient and ineffective if one is copy a large image file, and periodically a thread is used to compare the previous content with the image from clipboard. Just retrieving the content of clipboard for comparison can result in substantial CPU usage for a reasonably image size in clipboard (having implement something like this before)

Clipboard notification is very useful, for example to create application like Clipmate, and auto-processing based on copying URL link or some raw data.

The last info for the bug fix of clipboard notification is
"Sent are notifications about changes of data flavors
available on the clipboard. One should file an RFE if
they want API for notifications about all changes of
clipboard contents (e.g. some text is replaced with
other text). Anyway, one is able to implement the
required functionality now: retrieve text data from
the clipboard on a separate thread frequently."
from http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4259272

Hope you can look into it and fix clipboard notification in JDK 7,

thx

Posted by GeekyCoder on March 21, 2009 at 02:08 PM PDT #

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