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Performance optimization strategies of last resort [closed]

...erformance questions on this site already, but it occurs to me that almost all are very problem-specific and fairly narrow. And almost all repeat the advice to avoid premature optimization. ...
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NullPointerException in Java with no StackTrace

...a NullPointerException , but when I try to log the StackTrace (which basically ends up calling Throwable.printStackTrace() ), all I get is: ...
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Send inline image in email

... @Eric: there was a small issue in this code. in the mail.body just use att.ContentId instead of inline.ContentId – Amir May 11 '19 at 4:51 ...
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How do I create a WPF Rounded Corner container?

...bject (BorderThickness or CornerRadius) you can specify a single number if all 4 are the same, such as CornerRadius="8". – Santiago Palladino Sep 23 '08 at 13:14 3 ...
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How get integer value from a enum in Rails?

...t the integer values for an enum from the class the enum is on: Model.sale_infos # Pluralized version of the enum attribute name That returns a hash like: { "plan_1" => 1, "plan_2" => 2 ... } You can then use the sale_info value from an instance of the Model class to access the integer v...
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Using `textField:shouldChangeCharactersInRange:`, how do I get the text including the current typed

...the accepted answer, the following should work in Swift 3: func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool { let newString = NSString(string: textField.text!).replacingCharacters(in: range, with: string) return...
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How to specify maven's distributionManagement organisation wide?

...s to create a simple parent pom file project (with packaging 'pom') generically for all projects from your organization. <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="...
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Why would I ever use push_back instead of emplace_back?

...ob is to generate the code you wrote. The optimizing compiler's job is actually to generate the code you would have written if you were an expert on platform-specific optimizations and did not care about maintainability, just performance. The actual difference between these two statements is that t...
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How to handle static content in Spring MVC?

...ping a webapp using Spring MVC 3 and have the DispatcherServlet catching all requests to '/' like so (web.xml): 23 Answer...
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When is a C++ destructor called?

Basic Question: when does a program call a class' destructor method in C++? I have been told that it is called whenever an object goes out of scope or is subjected to a delete ...