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Why use try {} finally {} with an empty try block?

...e that your processing finishes even if your thread is aborted in the middle by someone calling Abort on your thread, you can place all your code in the finally block (the alternative is to write code in the “catch” block to determine where you were before “try” was interrupt...
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What's the point of Spring MVC's DelegatingFilterProxy?

...ely, you can define the bean in the classic way, that is: <beans:bean id="springSecurityFilterChain" class="org.springframework.security.web.FilterChainProxy"> But it's less recommended, since you need to do a lot of configuration (all the filters that you're going to use. And there are mo...
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How to sort Counter by value? - python

...nstead of a straight sort: >>> x.most_common(1) [('c', 7)] Outside of counters, sorting can always be adjusted based on a key function; .sort() and sorted() both take callable that lets you specify a value on which to sort the input sequence; sorted(x, key=x.get, reverse=True) would give...
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How to run test cases in a specified file?

... There are two ways. The easy one is to use the -run flag and provide a pattern matching names of the tests you want to run. Example: $ go test -run NameOfTest See the docs for more info. The other way is to name the specific file, containing the tests you want to run: $ go test foo_t...
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Android onCreate or onStartCommand for starting service

Usually when I create an Android service I implement the onCreate method, but in my last project this does not work. I tried implementing onStartCommand , and this seems to work. ...
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ActiveRecord, has_many :through, and Polymorphic Associations

...ource_type for the relationship you're trying to define. This fix to the Widget model should allow you do exactly what you're looking for. class Widget < ActiveRecord::Base has_many :widget_groupings has_many :people, :through => :widget_groupings, :source => :grouper, :source_type =...
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How do I add a ToolTip to a control?

... Here is your article for doing it with code private void Form1_Load(object sender, System.EventArgs e) { // Create the ToolTip and associate with the Form container. ToolTip toolTip1 = new ToolTip(); // Set up the delays for the ToolTip. toolTip1.AutoPopDela...
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@Transactional(propagation=Propagation.REQUIRED)

...ach such logical transaction scope can determine rollback-only status individually, with an outer transaction scope being logically independent from the inner transaction scope. Of course, in case of standard PROPAGATION_REQUIRED behavior, all these scopes will be mapped to the same physical transac...
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How can I add remote repositories in Mercurial?

... var channelOptions = { tags: "".split(" "), id: "1" }; initTagRenderer("".split(" "), "".split(" "), channelOptions); StackExchange.using("externalEditor", function() { // Have to fire editor after snippets, if snippets enabled...
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CSS to set A4 paper size

...it more and the actual problem seems to be with assigning initial to page width under the print media rule. It seems like in Chrome width: initial on the .page element results in scaling of the page content if no specific length value is defined for width on any of the parent elements (width: initia...