发帖数: 1 | 1 你丫股沟的案子理解了吗
: 很多东西你们外行人是看不明白的。你去查查tck吧，有助于你理解open JDK和
Google
: 的案子
: OpenJDK
: ] |
|
c****x
发帖数: 6601 | 2 360 ， qq browser都可以用。mysql开源，可以自己改。java openjdk
：捏了Windows OS， iOS, explore, chrome, foxfire, java, oracle, 特别是router
：access tool software， 你大概电脑，电话，电视统统一夜就死光光了吧！ |
|
w**z
发帖数: 8232 | 3 It doesn't matter what you put in this case. You can use HashSet, you don't
care about the value, you only care the existence of the key.
Java Hashset internally is backed by a hashmap, it stores the "this" as
value.
/**
* Adds the specified object to this HashSet.
*
* @param object
* the object to add
* @return true when this HashSet did not already contain the object,
false
* otherwise
*/
@Override
public boolean add(E object) {
... 阅读全帖 |
|
|
z*******3
发帖数: 13709 | 5 从jvm到appserver到ear都是websphere上跑的
想摆脱也摆脱不了
vendor lock in是一个很大的问题
尤其是国内那一群程序猿水平达不到
被忽悠上当太容易了
ibm搞流程化项目管理开发这一套简直就是教科书一般
jcp里面ibm说话的份量不比oracle轻，可能还会更有份量一点
openjdk争取到了ibm的支持之后，harmony马上就面临着绝境
气得apache因此退出了jcp
国内几乎所有得银行都是ibm的天下
我的意思是所有的银行，就像电厂的机器都是ge的天下一样
道30过去几年就靠ibm顶着了，其它都是烂的一笔，尤其是银行股 |
|
t**e
发帖数: 36 | 6 http://hg.openjdk.java.net/jdk7/jdk7-gate/jdk/file/e947a98ea3c1
查了一下，it is a linked list implementation, i dont quite understand the
following
#1
line 467 - 468, wont newTable[i] points to the entry after original src[j]?
void transfer(Entry[] newTable) {
487 Entry[] src = table;
488 int newCapacity = newTable.length;
489 for (int j = 0; j < src.length; j++) {
490 Entry e = src[j];
491 if (e != null) {
492 ... 阅读全帖 |
|
z****e
发帖数: 54598 | 7 scala自己能不能在跟groovy的搏斗中survive下来都难说
所以play和grail哪个更有戏一点很难说
至少我觉得我们这边groovy用得越来越多，scala太灵活
看起来累，学起来也不容易
struts是被spring mvc和jsf搞死的，apache就是斗不过ibm这些巨头
harmony就被oracle偷偷联手ibm做掉了，ibm去搞openjdk了
开源能不能担当大任谁也说不清楚
nosql现在趋势是把db结合进去用，因为分布式有其自身的缺陷
inconsistency无法克服，这是一个先天缺陷 |
|
|
|
B***S
发帖数: 73 | 10 Developer/DevOps
Must have solid knowledge of AWS Essentials(EC2, VPC, IAM, S3, etc)
Strong knowledge of Python and Java
Strong Linux/UNIX knowledge primarily,
- Process Management,
- File System Concepts,
- Basic System Administration (system startup/shutdown,
configuration),
- Shell Scripting (ksh or bash)
- System Firewalls(iptables)
Have knowledge of Configuration Management (preferably with Ansible)
Understanding of Security Best Practices
Solid Knowl... 阅读全帖 |
|
B***S
发帖数: 73 | 11 itle : Developer/DevOps
Description
Developer/DevOps
Must have solid knowledge of AWS Essentials(EC2, VPC, IAM, S3, etc)
Strong knowledge of Python and Java
Strong Linux/UNIX knowledge primarily,
- Process Management,
- File System Concepts,
- Basic System Administration (system startup/shutdown, configuration),
- Shell Scripting (kWh or bash) and
- System Firewalls(iptables)
Have knowledge of Configuration Management (preferably with Ansible)
Understanding of Security Best Practices
Solid Know... 阅读全帖 |
|
g******5
发帖数: 4 | 12 地点：加州湾区
JD：
We are looking for highly motivated individuals in the area of JVM
technologies and performance analysis. The lab focuses on programming
technology innovations including programming models, compilers and language
VM, and programming tools.
In particular, we are looking for candidates with strong expertise in JVM
technologies and/or in whole-system performance analysis. The position
offers a rare opportunity to influence the design of hardware and software
that are used by millions of... 阅读全帖 |
|
|
|
z****n
发帖数: 3189 | 15 openjdk不收费
android只是google app收费，系统本身不收 |
|
z****e
发帖数: 54598 | 16 没有人说所有人都不需要c，系统软件还是要c来写
但是问题在于，一般的应用就不需要c
所以人家已经说了，不需要用c去裸写web
这个意思其实表达得很清楚了
另外就是，其实c涉及得领域，都有成熟的产品了
就算你不想混口饭吃，你进入那个领域
你能拼得过那些混口饭吃的人用的开源的产品么？
你写一个db，能比得上firebird么？写一个os，能拼得过linux么？
写一个vm，能干得过openjdk么？省省吧，要真那么牛也早成名了 |
|
w********1
发帖数: 3492 | 17 Wed, 13 Jun 2012 11:09:19 PDT
Apple yesterday released a pair of software updates for Java, issuing
versions for both Lion and Snow Leopard. The update in part builds upon an
earlier Java update for Lion that disabled automatic execution of Java
applets in an attempt to minimize the impact of Java-based malware threats
like Flashback.
This update configures web browsers to not automatically run Java applets.
Java applets may be re-enabled by clicking the region labeled "Inactive plug
-in" on a ... 阅读全帖 |
|
w********1
发帖数: 3492 | 18 Mon, 25 Jun 2012 10:13:00 PDT
Computerworld Australia reports on a blog post from Sophos security expert
Graham Cluley published earlier this month detailing changes to Apple's "Why
you'll love a Mac" OS X marketing pages on the topic of security. The
changes, which come after a significant malware attack from Flashback
earlier this year, focus more of the text of OS X's built-in security
features rather than implying Macs are immune to viruses and suggesting that
users do not need to take any ... 阅读全帖 |
|
S**I
发帖数: 15689 | 19 要用Jave SE 7/8的话得先装OpenJDK；OS X自带的JDK还是Java SE 6。 |
|
g****z
发帖数: 1135 | 20 说说用的啥linux? 另外，兄弟用的是sunjdk，openjdk还是其他的？ |
|
m******t
发帖数: 2416 | 21
Yeah, I found a box with ibm jdk after the post. It does print something
to that effect. But then JRockit is currently at like 3.0.3. And OpenJDK
just goes with 6 or 7.
I guess like somebody said above, it's all messed up. ;-) |
|
z****e
发帖数: 54598 | 22 lets take a look what is happening between these 2 companies
from wikipedia
http://en.wikipedia.org/wiki/Java_applet
Google has developed their own Android platform that uses Java features and
concepts yet is NOT compatible with standard libraries. This has been a
violation of conditions under that Sun granted OpenJDK patents to use open
source Java for all [30].
so, who is spoiling java world？
google or oracle?
IF google or any other companies do whatever they want to do
whats gonna happen?
we |
|
w*r
发帖数: 2421 | 23 Sun 这个猪头为什么自己不高收费版的，要不然不会落到这个下场！！！
at
Oracle
source
JVM
OpenJDK |
|
y****e
发帖数: 1012 | 24 Debian wheezy, openjdk
调用org.apache.collections我安装了相应的deb,
include one jar in /usr/share/java/, then resolve successfully!
但是 cannot resolve java.io.File?
问下大家是不是 我 配置 哪里 有问题?
谢谢~~ |
|
y****e
发帖数: 1012 | 25 thanks,
should i try download sun java instead of openjdk, would eclipse
automatically update lib path or I have to do it manually?
thx |
|
z****e
发帖数: 54598 | 26 没啥贡献，最大的贡献就是让java支持macosx
或者说就是放弃自己的jdk，转而支持openjdk和官方的jdk
类似的还有ibm也这么做了，然后bea和sun被收购之后，他们的jdk也都合并了
现在jdk已经全面合并到两个主流上去了 |
|
z****e
发帖数: 54598 | 27 没啥贡献，最大的贡献就是让java支持macosx
或者说就是放弃自己的jdk，转而支持openjdk和官方的jdk
类似的还有ibm也这么做了，然后bea和sun被收购之后，他们的jdk也都合并了
现在jdk已经全面合并到两个主流上去了 |
|
|
g*****g
发帖数: 34805 | 29 This is wrong. Both the hotspot JDK and OpenJDK implementation uses a native
O(nm) algorithm for contains operation. Not a Boyer–Moore string which is
O(n).
So worst case can be 40 * sizeof(search key) * average_sizeof(keys)
compare |
|
x****d
发帖数: 1766 | 30 I guess this is what I heard.
Project Lambda: JSR 335 (Lambda Expressions for the Java™ Programming
Language), http://openjdk.java.net/projects/lambda/
We will see something like these:
(int x, int y) -> x + y
() -> 42
(String s) -> { System.out.println(s); }
with |
|
w**z
发帖数: 8232 | 31 搞了一天，总算把Cassandra弄上去了。非得用hotspot jvm, openjdk 就segmentation
fault . |
|
|
w**z
发帖数: 8232 | 33 I am talking about String hash function, not handling of hash map collision
. by the way, if you run openjdk in production, then good luck. Of course
, they are smarter than me. |
|
z*******3
发帖数: 13709 | 34 其实还是比起来差一点
weblogic有jrockit，websphere用r9
性能都比hotspot要稍强一点
jrockit可以做到接近real time的程度
r9可以跟aix做一些优化
只是说，对于大部分应用，hotspot其实足够好了
甚至openjdk都足够用了
但是就是不差钱的喜欢烧钱
Unix |
|
d****i
发帖数: 4809 | 35 Java语言的稳定性实际上是Java的一大优点，不同于某些语言一直在变，JDK从1.0到7.
0虽说有些变化，但基本变化都不大，我很同意好虫的观点，语言变化大不是好事，说
明这个语言从一开始设计就大有问题，像Java这样语言基本不变而非常稳定的语言是很
好的。而三月一小变，三年一大变的语言恐怕不是什么好事。实际上OpenJDK社区在投
票JDK 8的时候否决了很多看似fancy，实则为语法糖的东西，甚至像lambda这样的东西
也不是必须，语法糖而已。充实增加Java的各种库和框架远比玩弄几个语言上的语法糖
更重要。 |
|
S*****e
发帖数: 6676 | 36 我原来一直用Ubuntu，不过刚才放狗搜了下说它支持openJDK而不是正宗的JDK |
|
d****i
发帖数: 4809 | 37 这个没关系，下载Oracle官方JDK后，然后重新设置环境变量$JAVA_HOME=/usr/java/
jdk1.x.x_xx就可以了，现在很多distro都default装的OpenJDK，这个你懂的。 |
|
S*****e
发帖数: 6676 | 38 我原来一直用Ubuntu，不过刚才放狗搜了下说它支持openJDK而不是正宗的JDK |
|
d****i
发帖数: 4809 | 39 这个没关系，下载Oracle官方JDK后，然后重新设置环境变量$JAVA_HOME=/usr/java/
jdk1.x.x_xx就可以了，现在很多distro都default装的OpenJDK，这个你懂的。 |
|
e***m
发帖数: 92 | 40 openjdk 源码可以下载，google一下 |
|
B***S
发帖数: 73 | 41 Developer/DevOps
Must have solid knowledge of AWS Essentials(EC2, VPC, IAM, S3, etc)
Strong knowledge of Python and Java
Strong Linux/UNIX knowledge primarily,
- Process Management,
- File System Concepts,
- Basic System Administration (system startup/shutdown,
configuration),
- Shell Scripting (ksh or bash)
- System Firewalls(iptables)
Have knowledge of Configuration Management (preferably with Ansible)
Understanding of Security Best Practices
Solid Knowl... 阅读全帖 |
|
l*********s
发帖数: 5409 | 42 it is a problem of openjdk,if you replace it with Sun's original JDK, it
will be much faster. |
|
z*********n
发帖数: 94654 | 43 升级10.04了，no suprise，又是一堆折腾，以前work的又不work了，然后系统似乎强
制使用ibus。可以切换回scim，切了两下不work就懒得折腾了。linux哪天不要这么折
腾我就求神拜佛了。你说ibus就ibus吧
现在正在用ibus输入，貌似还不错，呵呵
字体，系统起来以后默认firefox的字体简直是惨不忍睹，他们qa是吃屎的吗？
默认汉字也是不能看。折腾完能看了
以前work的juniper ssl vpn client，在10.04里多了N多complication.依然google出
结果，copy paste解决，都不想过脑子了，妈的，折腾系统就是浪费生命。大概就是新
系统取消了tun module， vpn client需要modprobe tun。然后有人想出聪明办法fake
一个dummy tune module云云，生命在于折腾
java也挪到partner repo里了，如果你apt-get install java-jre blahblah，自动给
你安装openjdk jre， icetea什么的，貌似挺好，很多java程序不work，还 |
|
h*i
发帖数: 3446 | 44 Oracle and IBM both back OpenJDK, so Java should be fine. |
|
s*******n
发帖数: 730 | 45 eclipse最好不用系统的源.ubuntu那个源就是更新慢,现在还是Galileo
从eclipse网站的下载下来，放在home里建个目录就好了。反正是java的，dependency
只有openjdk。 |
|
i***l
发帖数: 9994 | 46 OpenJDK is not as good as Oracle Java right now. |
|
|
p******g
发帖数: 347 | 48 download the sun (oracle now) jdk, change the file mode to executable, then
run it under command line. if i know what i am talking about, otherwise...
openjdk is not good/supported in most commercial/series java applications. |
|
