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keytool error :java.io.IoException:Incorrect AVA format

...) in a field for Name, Organization or somewhere else. Of course if you really want some charachter can be escaped with \ sign share | improve this answer | follow ...
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Decoding and verifying JWT token using System.IdentityModel.Tokens.Jwt

... Within the package there is a class called JwtSecurityTokenHandler which derives from System.IdentityModel.Tokens.SecurityTokenHandler. In WIF this is the core class for deserialising and serialising security tokens. The class has a ReadToken(String) method tha...
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Send and receive messages through NSNotificationCenter in Objective-C?

... @implementation TestClass - (void) dealloc { // If you don't remove yourself as an observer, the Notification Center // will continue to try and send notification objects to the deallocated // object. [[NSNotificationCenter defaultCenter] removeO...
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Why is Scala's immutable Set not covariant in its type?

...ameter of type A due to the contravariance of functions. Set could potentially be contravariant in A, but this too causes issues when you want to do things like this: def elements: Iterable[A] In short, the best solution is to keep things invariant, even for the immutable data structure. You'll...
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Completion handler for UINavigationController “pushViewController:animated”?

...rface UINavigationController (CompletionHandler) - (void)completionhandler_pushViewController:(UIViewController *)viewController animated:(BOOL)animated completion:(void (^)(void))completion; @end Implementation: #import "UIN...
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Case-insensitive string comparison in C++ [closed]

...case-insensitive string comparison in C++ without transforming a string to all uppercase or all lowercase? 30 Answers ...
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How to get a Docker container's IP address from the host

...n. Maybe provide two examples clearly labelled Linux and Windows. I literally just typed the example, checked the docs which also uses single quotes and then Googled the error. I'm sure I'm not alone. – Wyck Apr 15 '19 at 18:42 ...
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PHP session lost after redirect

... First, carry out these usual checks: Make sure session_start(); is called before any sessions are being called. So a safe bet would be to put it at the beginning of your page, immediately after the opening <?php declaration before anything else. Also ensure there are no whitespaces/tabs be...
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How to delete migration files in Rails 3

... I usually: Perform a rake db:migrate VERSION=XXX on all environments, to the version before the one I want to delete. Delete the migration file manually. If there are pending migrations (i.e., the migration I removed was not the...
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Forward function declarations in a Bash or a Shell script?

... This seems somewhat analogous to what if _ _ name _ _ == "_ _ main _ _": main() does in python – Sergiy Kolodyazhnyy Feb 13 '16 at 7:13 ...