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Any reason to clean up unused imports in Java, other than reducing clutter?

...lain this. After attempting to increase memory settings (this is running a 64 bit JVM on a 64 bit CentOS!) to something well beyond where the clients could compile, I examined the checkins one by one. There was an improper import that a developer had used and abandoned (they used the class, auto-im...
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Loadbalancing web sockets

... Put a L3 load-balancer that distributes IP packets based on source-IP-port hash to your WebSocket server farm. Since the L3 balancer maintains no state (using hashed source-IP-port) it will scale to wire speed on low-end hardware (say 10GbE). Since the distribution is determi...
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ReactJS state vs prop

...it change over time? If not, it probably isn't state. Can you compute it based on any other state or props in your component? If so, it's not state. share | improve this answer ...
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How to determine the memory footprint (size) of a variable?

... not definate. It can depend apparently on the php version and possibly on 64/32 bit. share | improve this answer | follow | ...
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Python int to binary string?

... For a more general philosophy, no language or library will give its user base everything that they desire. If you're working in an environment that doesn't provide exactly what you need, you should be collecting snippets of code as you develop to ensure you never have to write the same thing twice...
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WebService Client Generation Error with JDK8

... Well, I found the solution. (based on http://docs.oracle.com/javase/7/docs/api/javax/xml/XMLConstants.html#ACCESS_EXTERNAL_SCHEMA) Create a file named jaxp.properties (if it doesn't exist) under /path/to/jdk1.8.0/jre/lib and then write this line in it: ...
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How to sort a dataframe by multiple column(s)

... Easy enough: dd[ order(-dd[,4], dd[,1]), ], but can't use with for name-based subsetting. – Dirk Eddelbuettel Oct 21 '12 at 14:34 ...
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How to install a specific version of a ruby gem?

... ruby | 1:1.9.3 | http://ftp.uk.debian.org/debian/ wheezy/main amd64 Packages ruby | 4.5 | http://ftp.uk.debian.org/debian/ squeeze/main amd64 Packages Then install it: $ sudo apt-get install ruby=1:1.9.3 To check what's the current version, run: $ gem --version # Check f...
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Is there a limit to the length of HTML attributes?

... HTML5 is not an SGML-based language. – William Brendel Sep 30 '09 at 5:03 add a comment  |  ...
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Hiding user input on terminal in Linux script

... I've got it. My FreeBSD test was based on the code copied and pasted from your original mistaken edit of lesmana's post, which contains one important difference: you had been passing read a -d ''. When I retried it later on Linux I used the reposted version....