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In Hibernate Validator 4.1+, what is the difference between @NotNull, @NotEmpty, and @NotBlank?
...cking this information down on my own, and I wanted to help others benefit from that effort. "To be crystal clear, it is not merely OK to ask and answer your own question, it is explicitly encouraged." blog.stackoverflow.com/2011/07/…
– Rick Hanlon II
Jun 16 ...
“find: paths must precede expression:” How do I specify a recursive search that also finds files in
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From find manual:
NON-BUGS
Operator precedence surprises
The command find . -name afile -o -name bfile -print will never print
afile because this is actually equivalent to find . -name afile -o \(
-name...
XmlWriter to Write to a String Instead of to a File
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This is a question from 2009. So, the value in providing an answer now would be for future users who might have similar issues. Consequently, answers to old questions like this should only be provided if they can clearly identify the problem an...
How to add a border just on the top side of a UIView
...ur subclass too, you can apply it to anything and everything that inherits from UIView - reusable in your project, and any others. Pass in other arguments to your methods to define other colours and widths. Many options.
sha...
Java Synchronized Block for .class
... the other hand, can have code above and below them, that can get executed from multiple threads. They only synchronize within the block! That is not the same!
– JacksOnF1re
Mar 15 '18 at 15:31
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File content into unix variable with newlines
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Bash -ge 4 has the mapfile builtin to read lines from the standard input into an array variable.
help mapfile
mapfile < file.txt lines
printf "%s" "${lines[@]}"
mapfile -t < file.txt lines # strip trailing newlines
printf "%s\n" "${lines[@]}"
See also:
http...
Checking out Git tag leads to “detached HEAD state”
...t there is usually no problem with that state. You may create a new branch from the tag, if this makes you feel safer :)
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Dynamically Changing log4j log level
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Here you go: This is a snippet from the Controller where we use it. We have an admin page with some links to dynamically reconfigure logging, which then makes a GET to the link /admin/setLogLevel?level=Error and then we catch this in the controller lik...
What is monkey patching?
...de at runtime (typically at startup).
A simple example looks like this:
from SomeOtherProduct.SomeModule import SomeClass
def speak(self):
return "ook ook eee eee eee!"
SomeClass.speak = speak
Source: MonkeyPatch page on Zope wiki.
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How to suppress Pandas Future warning ?
...e time for this. And you probably don't either. Hopefully this saves you from falling down the rabbit hole or perhaps inspires someone to figure out how to truly suppress these messages!
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