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Light weight alternative to Hibernate? [closed]

I have a single user java program that I would like to have store data in a light weight database such as Derby or Sqlite. I would like to use a data abstraction layer in my program. Hibernate appears to require a lot of configuration and is overkill for what I need. What are light weight alternativ...
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Selenium: FirefoxProfile exception Can't load the profile

Per this previous question I updated Selenium to version 2.0.1 But now I have another error, even when the profile files exist under /tmp/webdriver-py-profilecopy : ...
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Javascript: best Singleton pattern [duplicate]

I'm using this pattern for singletons, in the example the singleton is PlanetEarth: 4 Answers ...
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How do I hide the status bar in a Swift iOS app?

I'd like to remove the status bar at the top of the screen. 27 Answers 27 ...
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Best way to convert strings to symbols in hash

... In Ruby >= 2.5 (docs) you can use: my_hash.transform_keys(&:to_sym) Using older Ruby version? Here is a one-liner that will copy the hash into a new one with the keys symbolized: my_hash = my_hash.inject({}){|memo,(k,v)| memo[k.to_sym] = v; memo} With Rails you can use: my_ha...
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External resource not being loaded by AngularJs

Using Angular and Phonegap, I'm trying to load a video that is on a remote server but came across an issue. In my JSON, the URL is entered as a plain HTTP URL. ...
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How to darken a background using CSS?

I have an element with text in it. Whenever I decrease the opacity, then I decrease the opacity of the WHOLE body. Is there any way I can just make the background-image darker, and not everything else? ...
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“for” vs “each” in Ruby

I just had a quick question regarding loops in Ruby. Is there a difference between these two ways of iterating through a collection? ...
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Does reading an entire file leave the file handle open?

If you read an entire file with content = open('Path/to/file', 'r').read() is the file handle left open until the script exits? Is there a more concise method to read a whole file? ...
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What does .class mean in Java?

What does .class mean in Java? For example, if I created a class called Print . What does Print.class return? 7 Answer...