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How to build JAR from Eclipse plugin project

Right click project in project explorer window, choose "Export...", then choose "Deployable plug-ins and fragments" under "Plug-in Development". After that everything should be simple - when choosing directory to export be aware that inside that directory plugins subdirectory will be created and plugin jar will be placed in it (rather than in directory itself).

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Clean package cache

Run pkg clean. Quite logical, but I keep forgetting command.

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Importing SSL certificates into Mono store

Run cert-sync --user /etc/ssl/cert.pem. Omit --user to synchronize for entire system (note that this installs them in /usr/share/.mono rather than /usr/local/share/.mono).

Without this you might be experiencing errors like "Ssl error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED" or similar

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When application is not listed in preferred applications in MATE

Reason for this is application .desktop file missing MimeType specification. For example for me mplayer and thunderbird are not listed as choices for video and mail respectively. To fix this edit application's .desktop file (in /usr/local/share/applications directory, or in ~/.local/share/applications) and run update-desktop-database afterwards (with -v to show its warnings).

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Get list of manually installed packages

To get list of manually installed packages (ie, those not installed as dependencies) use this command:
pkg query -e '%a = 0' %o | sort

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Unzip files with unicode names

In case normal unzip can't handle them properly (I was unable to make it do it properly) use 7 zip instead (package p7zip) - command to use is
7z x path_to_zip

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Making timelapse video

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If Java applets don't work after installing IcedTea

Obviously plugin has to be enabled when building IcedTea. Apparently some systems (like iLo) can't use java web start with OpenJDK. For them applets have to be used but by default they won't open in Firefox - for iLo to work without surprises it is necessary to choose "always activate" for java plugin (Tools > Add-ons > Plugins, then find IcedTea-Web and choose "Always Activate" for it).

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Mono 4.8.1 with TLS 1.2 on FreeBSD

TLS 1.2 is not enabled in default version of Mono 4.8.1 port for FreeBSD.

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MATE 1.12.1 and FreeBSD 10.3

One place to put all little tweaks to make it work better with FreeBSD.

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