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No connection could be made because the target machine actively refused it?

... If this happens always, it literally means that the machine exists but that it has no services listening on the specified port, or there is a firewall stopping you. If it happens occasionally - you used the word "sometimes" - and retrying succeeds,...
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Git Remote: Error: fatal: protocol error: bad line length character: Unab

I set up a git server and want now to push initially my repo from the client. I used git push origin master and get this error message: ...
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getApplication() vs. getApplicationContext()

...couldn't find a satisfying answer to this, so here we go: what's the deal with Activity/Service.getApplication() and Context.getApplicationContext() ? ...
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Difference between case object and object

...ier default implementation of toString, and the small amount of functionality that they get from automatically inheriting from scala.Product. Pattern matching, equals and hashCode don't matter much for singletons (unless you do something really degenerate), so you're pretty much just getting se...
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How do you install Google frameworks (Play, Accounts, etc.) on a Genymotion virtual device? [duplica

I'm currently trying out Genymotion and boy, it's so much faster than the ADT emulator. 10 Answers ...
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How to store arbitrary data for some HTML tags

...a in a div. Obviously in this example, I need each link to store an extra bit of information: the id of the article. The way I've been handling it in case was to put that information in the href link this: ...
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Copy a file in a sane, safe and efficient way

I search for a good way to copy a file (binary or text). I've written several samples, everyone works. But I want hear the opinion of seasoned programmers. ...
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Trouble comparing time with RSpec

...-rails gem 2.14. For a my object I would like to compare the current time with the updated_at object attribute after a controller action run, but I am in trouble since the spec does not pass. That is, given the following is the spec code: ...
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SQL is null and = null [duplicate]

...considered as false for the purposes of a where clause (strictly speaking, it's "not true", rather than "false", but the effect is the same). The reasoning is that a null means "unknown", so the result of any comparison to a null is also "unknown". So you'll get no hit on rows by coding where my_co...
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Apache Tomcat Not Showing in Eclipse Server Runtime Environments

...e Eclipse menu bar and I can start and stop Tomcat from there. In Eclipse, it does not show as a Server Runtime Environment in Window - Preferences - Server - Runtime Environments, nor does it appear in the list of environments that can be added when I click the "Add" button. All I see is the J2EE R...