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Hidden Features of Java
...cally not so widely known as a way to store per-thread state.
Since JDK 1.5 Java has had extremely well implemented and robust concurrency tools beyond just locks, they live in java.util.concurrent and a specifically interesting example is the java.util.concurrent.atomic subpackage that contains th...
sendmail: how to configure sendmail on ubuntu? [closed]
...`your.isp.net')dnl
define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
FEATURE(`authinfo',`hash -o /etc/mail/auth/client-info.db')dnl
Invoke creation sendmail.cf (alternatively run make -C /etc/mail):
m4 sendmail.mc > sendmail.cf
Restart the sendmail daemon:
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How to find reason of failed Build without any error or warning
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edited Jun 30 at 6:35
Mr. C. Soldier
2366 bronze badges
answered Dec 11 '14 at 14:42
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CORS: Cannot use wildcard in Access-Control-Allow-Origin when credentials flag is true
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257
This is a part of security, you cannot do that. If you want to allow credentials then your Acce...
Safe characters for friendly url [closed]
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answered Mar 29 '09 at 21:57
Skip HeadSkip Head
6,55211 gold badge2626 silver badges3434 bronze badges
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Assert equals between 2 Lists in Junit
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For junit4! This question deserves a new answer written for junit5.
I realise this answer is written a couple years after the question, probably this feature wasn't around then. But now, it's easy to just do this:
@Test
public void test_array_pass()
{
List<String> actual = Arrays.a...
Remove spaces from std::string in C++
...ed Oct 20 '12 at 20:20
user283145
answered Sep 17 '08 at 14:00
Matt PriceMatt Price
36...
Convert a python dict to a string and back
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answered Dec 28 '10 at 15:59
Tyler EavesTyler Eaves
10.8k11 gold badge2828 silver badges3939 bronze badges
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What does the Subversion status symbol “~” mean?
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edited Jul 29 '16 at 11:54
bahrep
26k1111 gold badges9191 silver badges127127 bronze badges
answered M...
'Must Override a Superclass Method' Errors after importing a project into Eclipse
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Eclipse is defaulting to Java 1.5 and you have classes implementing interface methods (which in Java 1.6 can be annotated with @Override, but in Java 1.5 can only be applied to methods overriding a superclass method).
Go to your project/IDE preferences and...