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How to tell Jackson to ignore a field during serialization if its value is null?
...e shown if the value is not null.
A more complete example is available in my answer to How to prevent null values inside a Map and null fields inside a bean from getting serialized through Jackson.
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How to set java_home on Windows 7?
..._HOME Variable
Once you have the JDK installation path:
Right-click the My Computer icon on your desktop and select Properties.
Click the Advanced tab, then click the Environment Variables button.
Under System Variables, click New.
Enter the variable name as JAVA_HOME.
Enter the variable value a...
Check if object exists in JavaScript
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in my case, im looking to SEARCH for this object, so this doesnt help. i want a solution i can use in console as wel, to see if object is in domtree somewhere without any clickery..
– blamb
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Unix command to prepend text to a file
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In my case I want to have a semi-colon in the end of the prepended line, so I went with '1s;^;my-prepended-line\;\n;'
– SamGamgee
Sep 19 '16 at 12:18
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What's the purpose of git-mv?
...Git became confused and did not track the changes properly. By the way, in my experiments the same happened when I deleted/created files instead of using git mv. Proceed with care; you've been warned...
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HttpURLConnection timeout settings
...d both the timeouts and still getting timeout error. but when I check logs my request is taking 20sec but I gave 100 sec for setConnectTimeout
– Siva
Sep 18 at 0:19
add a comm...
ASP.NET MVC: Is Controller created for every request?
...tion in a specific Controller is performed.
I have a project where all of my Controllers inherit from an ApplicationController and every time that an action is performed, the breakpoint is hit inside of the ApplicationController - regardless of its "current" Controller.
I initialize my agent (whic...
Flex-box: Align last row to grid
...ectly. Seems to work on Safari, iOS, Firefox, Chrome (need to test IE) and my largest row size is 3 on my initial implementation.
– webbower
Jul 13 '16 at 1:12
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How to save and restore multiple different sessions in Vim?
Depending on my task in Vim I have several tabs open.
14 Answers
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The smallest difference between 2 Angles
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For me the most elegant solution as well! Solved my problem perfectly (wanted to have a formula that gives me the signed turn angle which is the smaller one from the two possible turn directions/angles).
– Jürgen Brauer
May 4 '17 at 7...