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Why is Java's SimpleDateFormat not thread-safe? [duplicate]

Please tell with a code example why is SimpleDateFormat not threadsafe. What is the problem in this class? Is The problem with format function of SimpleDateFormat ? Please give a code which demonstrates this fault in class. ...
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Unauthorised webapi call returning login page rather than 401

...a webapi method called from a razor view doesn't return the loginpage when its unauthorised? 15 Answers ...
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Email validation using jQuery

I'm new to jQuery and was wondering how to use it to validate email addresses. 35 Answers ...
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“Auth Failed” error with EGit and GitHub

I've installed EGit plugin at Eclipse Helios and I'm trying to use it with my GitHub account, but when I try to configure it I get an "Auth Failed" error. ...
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UILabel - auto-size label to fit text?

Is it possible to auto-resize the UILabel box/bounds to fit the contained text? (I don't care if it ends up larger than the display) ...
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How to do a SOAP Web Service call from Java class?

... me, my problem is that I was given a library(jar) which I have to extend with some webservice functionality. 3 Answers ...
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Reverse Range in Swift

Is there a way to work with reverse ranges in Swift? 7 Answers 7 ...
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How can I reset or revert a file to a specific revision?

I have made some changes to a file which has been committed a few times as part of a group of files, but now want to reset/revert the changes on it back to a previous version. ...
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C++, variable declaration in 'if' expression

...ble: if (int a = Func1(), b = Func2(); a && b) { // Do stuff with a and b. } Note the use of ; of instead of , to separate the declaration and the actual condition. share | improve th...
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WCF timeout exception detailed investigation

...e service. The server is running Win 2008 Server. The clients are running either Windows 2008 Server or Windows 2003 server. I am getting the following exception, which I have seen can in fact be related to a large number of potential WCF issues. ...