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Serializing with Jackson (JSON) - getting “No serializer found”?

...Visibility(PropertyAccessor.FIELD, Visibility.ANY); For more information and details on related configuration options, I recommend reviewing the JavaDocs on ObjectMapper.setVisibility(). share | i...
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The request was aborted: Could not create SSL/TLS secure channel

...12; // Use SecurityProtocolType.Ssl3 if needed for compatibility reasons And now, it works perfectly. ADDENDUM As mentioned by Robin French; if you are getting this problem while configuring PayPal, please note that they won't support SSL3 starting by December, 3rd 2018. You'll need to use TLS...
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What's the difference between the WebConfigurationManager and the ConfigurationManager?

What's the difference between the WebConfigurationManager and the ConfigurationManager ? 4 Answers ...
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Customizing Bootstrap CSS template

I am just getting started with Bootstrap from Twitter and am wondering what the ‘best practices’ is for customization. I want to develop a system that will take advantage of all the power of a css template (Bootstrap or other), be completely (and easily) modifiable, be sustainable (ie – when t...
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Why is String immutable in Java?

...it were mutable, these parameters could be easily changed. Synchronization and concurrency: making String immutable automatically makes them thread safe thereby solving the synchronization issues. Caching: when compiler optimizes your String objects, it sees that if two objects have same value (a="...
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Check if OneToOneField is None in Django

...elect_related() now or in the future -- or maybe even to be sure you also handle other sorts of magic which may happen elsewhere -- you have to extend the test as follows: if hasattr(object, 'onetoonerevrelattr') and object.onetoonerevrelattr != None – class stacker ...
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SQL Inner-join with 3 tables?

...preferences? (one column for each preference) – Bob Sanders Apr 17 '12 at 17:05 1 @BobSanders jus...
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How do I sort a list by different parameters at different timed

...ms. I like the elegant combination you do with the enums, the "descending" and the "Composite". I guess the null values treatment is missing, but it's easy to add the same way as "descending". – KLE Sep 15 '09 at 7:48 ...
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android start activity from service

Android: 7 Answers 7 ...
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Moving UITabBarItem Image down?

Normally on each tab of a UITabBar you have a small image and a title naming the tab. The image is positioned/centred towards the top of the tab to accommodate the title underneath. My question is: if you want to have a tabBar with just an image and no title is there a way to move the image down ...