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Why can I throw null in Java? [duplicate]
...ttempting to throw null itself throws a NullPointerException.
In other words, throw checks that its argument is nonnull, and if it is null, it throws a NullPointerException.
JLS 14.18 specifies this behavior:
If evaluation of the Expression completes normally, producing a null value, then an...
Does Git Add have a verbose switch
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For some git-commands you can specify --verbose,
git 'command' --verbose
or
git 'command' -v.
Make sure the switch is after the actual git command. Otherwise - it won't work!
Also useful:
git 'command' --dry-run
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Why is there an “Authorization Code” flow in OAuth2 when “Implicit” flow works so well?
...ken is passed directly as a hash fragment (not as a URL parameter). One important thing about hash fragment is that, once you follow a link containing a hash fragment, only the browser is aware of the hash fragment. Browsers will pass the hash fragment directly to the destination webpage (the redire...
How do I use CMake?
I am trying to use CMake in order to compile opencv.
4 Answers
4
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RabbitMQ message size and types
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Theoretically anything can be stored/sent as a message. You actually don't want to store anything on the queues. The system works most efficiently if the queues are empty most of the time. You can send anything you want to th...
Update MongoDB field using value of another field
... aggregation pipeline in the update document and the updateOne, updateMany or update collection method. Note that the latter has been deprecated in most if not all languages drivers.
MongoDB 4.2+
Version 4.2 also introduced the $set pipeline stage operator which is an alias for $addFields. I will...
Clone only one branch [duplicate]
... how I could clone only one branch instead of cloning the whole Git repository.
4 Answers
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Splitting templated C++ classes into .hpp/.cpp files--is it possible?
I am getting errors trying to compile a C++ template class which is split between a .hpp and .cpp file:
16 Answers
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How do I use VaryByParam with multiple parameters?
...SP.NET MVC2 I use OutputCache and the VaryByParam attribute. I got it working fine with a single parameter, but what is the correct syntax when I have several parameters on the method?
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Creating virtual directories in IIS express
Is there any way to create a virtual directory in IIS express? I know that Cassini can't do this and it would be nice to be able to do this without using a full version of IIS.
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