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How to free memory in Java?

...'re manually calling the garbage collector, you may want to consider other approaches: If you're forcing GC on a limited number of machines, it may be worth having a load balancer point away from the current machine, waiting for it to finish serving to connected clients, timeout after some period ...
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Convert UTC datetime string to local datetime

...ver had to convert time to and from UTC. Recently had a request to have my app be timezone aware, and I've been running myself in circles. Lots of information on converting local time to UTC, which I found fairly elementary (maybe I'm doing that wrong as well), but I can not find any information on ...
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Are there any downsides to passing structs by value in C, rather than passing a pointer?

...tially causing the situation that this site is named after... If I see an application that seems to have excessive stack usage, structs passed by value is one of the things I look for first. share | ...
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How to send password securely over HTTP?

.... not at all. Screenshot you are seeing is modified to illustrate what is happening in a browser. The moment you hit enter browser will convert your url creating a Authorization header. Just give it a go. Logs will remind clean. And of course if you making a call from the server (if that is the sce...
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Show AlertDialog in any position of the screen

...windowBackground to null, like so: <resources> <!-- Example app theme - mine uses the below --> <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"> <item name="android:alertDialogTheme">@style/MyDialogTheme</item> </style> ...
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log4j vs logback [closed]

We are using log4j behind a selfmade wrapper. We plan to use much more features of it now. 6 Answers ...
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Can not connect to local PostgreSQL

...he socket file and its directories /var and /var/pgsql_socket. Your Rails app (OSX user) must have execute (x) permissions on these directories (preferably grant everyone permissions) and the socket should have full permissions (wrx). You can use ls -lAd <file> to check these, and if any of t...
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Maven2: Best practice for Enterprise Project (EAR file)

...</modules> <displayName>My Ear Name displayed in the App Server</displayName> <!-- If I want maven to generate the application.xml, set this to true --> <generateApplicationXml>true</generateApplicationXml> </configuration&...
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Rails: Adding an index after adding column

Suppose I created a table table in a Rails app. Some time later, I add a column running: 5 Answers ...
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Check if a variable is a string in JavaScript

... The Google JavaScript Style Guide says to never use primitive object wrappers. Douglas Crockford recommended that primitive object wrappers be deprecated. share | improve this answer |...