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Can javax.persistence.Query.getResultList() return null?

... You are right. JPA specification says nothing about it. But Java Persistence with Hibernate book, 2nd edition, says: If the query result is empty, a null is returned Hibernate JPA implementation (Entity Manager) return null when you call query.getResultList() with no res...
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In a Bash script, how can I exit the entire script if a certain condition occurs?

I'm writing a script in Bash to test some code. However, it seems silly to run the tests if compiling the code fails in the first place, in which case I'll just abort the tests. ...
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Throwing exceptions from constructors

I'm having a debate with a co-worker about throwing exceptions from constructors, and thought I would like some feedback. 1...
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How to remove all .svn directories from my application directories

...follow | edited Sep 22 '16 at 7:06 siegy22 3,71911 gold badge1616 silver badges3838 bronze badges ...
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“Could not find any information for class named ViewController”

...s since I started using Xcode (4.6.3). Whenever I try to link a Storyboard item to my code, I get the error: 39 Answers ...
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Does uninstalling a package with “pip” also remove the dependent packages?

...p to install a package, all the required packages will also be installed with it (dependencies). Does uninstalling that package also remove the dependent packages? ...
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SVN: Ignore some directories recursively

...y named build or dist to go into my SVN no matter how deep in the tree it is. 15 Answers ...
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How to link to part of the same document in Markdown?

I am writing a large Markdown document and would like to place a table of contents of sorts at the beginning that will provide links to various locations in the document. How can I do this? ...
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Concat scripts in order with Gulp

... I had a similar problem recently with Grunt when building my AngularJS app. Here's a question I posted. What I ended up doing is to explicitly list the files in order in the grunt config. The config file will then look like this: [ '/path/to/app.js', '/...
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Free space in a CMD shell

... a way to get the amount of free diskspace of a disk or a folder in a CMD without having to install some thirdparty applications? ...