NetBeans 6.5 出来了！

尽管这一版 6.5 一直在“鼓吹”给 PHP 的朋友听，
但是NetBeans team 还是没有忘本，有关JAVA IDE 的特征也不少：
NetBeans IDE 6.5 Release Client - New and Noteworthy
6.5 Release Information

下面这些是我个人比较喜欢的：

• Automatic Compile on Save
• Improved Eclipse project import and synchronization
• Java Call Hierarchy
• Analyze Javadoc
• CamelCase code completion
• Customize formatting settings per project
• Enhanced support for Spring, Hibernate
• New multi-threaded debugging with improved UI and work-flow

Have fun!

JAVA 1.6.0_10 -Xmx

依次执行如下命令

C:\Documents and Settings\pprun>ver

Microsoft Windows XP [版本 5.1.2600]

C:\Documents and Settings\pprun>java -version
java version "1.6.0_10"
Java(TM) SE Runtime Environment (build 1.6.0_10-b33)
Java HotSpot(TM) Client VM (build 11.0-b15, mixed mode, sharing)


C:\Documents and Settings\pprun>java -Xmx2048m -version
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.

2 G 内存，很新鲜吗？
我刚加了一条，才百多块。
然而，直到我试到 1446 这个可爱的幸运数字时，才成功：
C:\Documents and Settings\pprun>java -Xmx1447m -version
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.

C:\Documents and Settings\pprun>java -Xmx1446m -version
java version "1.6.0_10"
Java(TM) SE Runtime Environment (build 1.6.0_10-b33)
Java HotSpot(TM) Client VM (build 11.0-b15, mixed mode)


我立即切换到 Ubunut8.04,进行了一下测试:

pprun@pprun-t61:~$ uname -r
2.6.24-21-generic
pprun@pprun-t61:~$ sudo lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 8.04.1
Release: 8.04
Codename: hardy

pprun@pprun-t61:~$ java -Xmx3072m -version
java version "1.6.0_10"
Java(TM) SE Runtime Environment (build 1.6.0_10-b33)
Java HotSpot(TM) Server VM (build 11.0-b15, mixed mode)

pprun@pprun-t61:~$ java -Xmx3722m -version
java version "1.6.0_10"
Java(TM) SE Runtime Environment (build 1.6.0_10-b33)
Java HotSpot(TM) Server VM (build 11.0-b15, mixed mode)

pprun@pprun-t61:~$ java -Xmx3723m -version
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.

是不是 JAVA 也赞成 Windows XP 黑屏？
竟然不能够分配超过 1446m (1.446g) 内存堆！