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Waiting on a list of Future
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You can use a CompletionService to receive the futures as soon as they are ready and if one of them throws an exception cancel the processing. Something like this:
Executor executor = Executors.newFixedThreadPool(4);
CompletionService<SomeRes...
How to respond with HTTP 400 error in a Spring MVC @ResponseBody method returning String?
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Using this approach you don't need @ResponseBody annotation any more
– Lu55
Aug 3 '15 at 12:26
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show 4 more comments
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What's the best mock framework for Java? [closed]
...ing you shouldn't (e.g. create mocks inline), you get a very clear explanation of what you did wrong in the exception message.
– ripper234
Jun 27 '09 at 12:00
3
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Mockito: List Matchers with generics
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In addition to anyListOf above, you can always specify generics explicitly using this syntax:
when(mock.process(Matchers.<List<Bar>>any(List.class)));
Java 8 newly allows type inference based on parameters, so if you'r...
Comparing mongoose _id and strings
I have a node.js application that pulls some data and sticks it into an object, like this:
7 Answers
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Check if a dialog is displayed with Espresso
...s with the new android-test-kit (Espresso) . But I can't find any information on how to check if a dialog is displayed and perform some actions on it (like clicking the positive and negative buttons, e.t.c.). Note that a dialog may be also displayed by a WebView , not by the application it self....
What is the most efficient way to loop through dataframes with pandas? [duplicate]
I want to perform my own complex operations on financial data in dataframes in a sequential manner.
10 Answers
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Xcode duplicate line
...hortcut of ⌘ D ), but it is (as Halley pointed out) meant for duplication in the Interface Builder part of Xcode.
17 A...
Is it a bad practice to use an if-statement without curly braces? [closed]
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The problem with the first version is that if you go back and add a second statement to the if or else clauses without remembering to add the curly braces, your code will break in unexpected and amusing ways.
Maintainability-wise, it's always smarter to u...
Detecting programming language from a snippet
...s" in Ruby snippets.
I've actually used this method to add language detection to code snippets for forum software. It worked 100% of the time, except in ambiguous cases:
print "Hello"
Let me find the code.
I couldn't find the code so I made a new one. It's a bit simplistic but it works for my t...