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commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated

... associated with the tag are simply not being invoked. Or, the bean properties are not updated with submitted UIInput values. ...
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How efficient is locking an unlocked mutex? What is the cost of a mutex?

...lity, since more locking means more debugging of the locking. How efficient is it to lock a mutex? I.e. how much assembler instructions are there likely and how much time do they take (in the case that the mutex is unlocked)? The precise assembler instructions are the least overhead of a mutex...
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What are the benefits of dependency injection containers?

...n. If any of your test scenarios require you to change the configuration (ie: use another component to mimic a banking integration, or do a performance load), this can be easily handled (this does come under the benefits of configuring the DI side of an IoC though. Additionally if your app is used...
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Is gcc's __attribute__((packed)) / #pragma pack unsafe?

...ing the program. There have also been systems where a misaligned access quietly ignores the low-order bits of the address, causing it to access the wrong chunk of memory. Consider the following program: #include <stdio.h> #include <stddef.h> int main(void) { struct foo { c...
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How to write WinForms code that auto-scales to system font and dpi settings?

...ed. Explicitly set Font on the control so it appears in bold in the Properties window. ListView column widths don't scale. Override the form's ScaleControl to do it instead. See this answer SplitContainer's Panel1MinSize, Panel2MinSize and SplitterDistance properties TextBox with MultiLine = True an...
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urlencode vs rawurlencode?

... edited Aug 4 '11 at 11:03 Anomie 83.2k1313 gold badges120120 silver badges142142 bronze badges answered Jun 15 '09 at 13:38 ...
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Can someone explain the “debounce” function in Javascript

...out check. Won't there always be a timeout (because timeout is called earlier). Also, what good does clearTimeout(timeout) do, when it is declared (making it undefined) and cleared, earlier – Startec Jun 3 '14 at 4:23 ...
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What is the correct way to create a single-instance WPF application?

...the existing instance of the application to the foreground when the user tries to start another instance. That's a very nice touch that the other Mutex solutions described here do not address. UPDATE As of 8/1/2014, the article I linked to above is still active, but the blog hasn't been updated...
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How do I recover/resynchronise after someone pushes a rebase or a reset to a published branch?

...git fetch git rebase --onto origin/foo old-foo foo git branch -D old-foo Ie. first you set up a bookmark for where the remote branch originally was, then you use that to replay your local commits from that point onward onto rebased remote branch. Rebasing is like violence: if it doesn’t solve y...
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How to import multiple .csv files at once?

...g a loop to make them all data frames rather than single objects? I can achieve this individually using the data.frame operator but am unsure as to how to loop this. @mrdwab – Jojo Ono Jul 11 '12 at 15:07 ...