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[Bug 1370190] [NEW] .desktop files in .local/share/applications not processed correctly

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Public bug reported:

I had this file:  ~/.local/share/applications/jetbrains-android-
studio.desktop

whose content is:
-----
[Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
Name=Android Studio (Preview) 0.4.6
Icon=jetbrains-android-studio.png
Path=/home/teo/
#Exec=/usr/lib/jvm/java-7-oracle/bin/java -Xms128m -Xmx750m -XX:MaxPermSize=350m -XX:ReservedCodeCacheSize=96m -ea -Dsun.io.useCanonCaches=false -Djava.net.preferIPv4Stack=true -Didea.project.structure.max.errors.to.show=0 -XX:+UseCodeCacheFlushing -XX:+UseConcMarkSweepGC -XX:SoftRefLRUPolicyMSPerMB=50 -XX:+HeapDumpOnOutOfMemoryError -Dawt.useSystemAAFontSettings=lcd -Djb.vmOptionsFile=Documents/programmi/android-studio/bin/studio64.vmoptions -Xbootclasspath/a:Documents/programmi/android-studio/bin/../lib/boot.jar -Didea.paths.selector=AndroidStudioPreview -Didea.platform.prefix=AndroidStudio -Djb.restart.code=88 com.intellij.idea.Main
Exec=/home/teo/Documents/programmi/android-studio/bin/studio.sh
StartupNotify=false
#StartupWMClass=jetbrains-android-studio
OnlyShowIn=Unity;
X-UnityGenerated=true
-----

I wanted to use this as a model for creating a desktop file for a
completely unrelated application. So this is what I did:

I copied the file verbatim to
~/.local/share/applications/telegram.desktop

and then edited it. Its content now is:

-----
[Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
Name=Telegram Desktop
Path=/home/teo/
Exec=/home/teo/Documents/programmi/Telegram/Telegram
StartupNotify=true
OnlyShowIn=Unity;
X-UnityGenerated=true
-----

You can see that there's absolutely nothing in the first file that
matches the string "telegram", and also you can see that the second file
(the one called "telegram.desktop") has "Telegram Desktop" as its
application name, NOT Android Studio, and doesn't contain anything
related to "Android Studio".


So, the expected behavior is that if I type "Telegram" in the Dash, an item should be displayed under Applications, with the name Telegram Desktop, and with either the default icon embedded in the executable, if any, or some default icon.

Instead, I get this: see screenshot.

It looks like the list of applications got somehow "cached" when I
created the new file, but it didn't get updated when I modified the
file.

If I click on the wrongly-named "Android Studio (etc)" application, it
does load the correct one, which is Telegram.

Perhaps this will be fixed at the next reboot, but it shouldn't take a
reboot.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.2.2+14.04.20140714-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CurrentDesktop: Unity
Date: Tue Sep 16 19:44:17 2014
InstallationDate: Installed on 2013-10-11 (340 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: unity
UpgradeStatus: Upgraded to trusty on 2014-05-24 (115 days ago)

** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty

** Attachment added: "Screenshot from 2014-09-16 20:03:43.png"
   https://bugs.launchpad.net/bugs/1370190/+attachment/4205676/+files/Screenshot%20from%202014-09-16%2020%3A03%3A43.png

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https://bugs.launchpad.net/bugs/1370190

Title:
  .desktop files in .local/share/applications not processed correctly

Status in “unity” package in Ubuntu:
  New

Bug description:
  I had this file:  ~/.local/share/applications/jetbrains-android-
  studio.desktop

  whose content is:
  -----
  [Desktop Entry]
  Encoding=UTF-8
  Version=1.0
  Type=Application
  Name=Android Studio (Preview) 0.4.6
  Icon=jetbrains-android-studio.png
  Path=/home/teo/
  #Exec=/usr/lib/jvm/java-7-oracle/bin/java -Xms128m -Xmx750m -XX:MaxPermSize=350m -XX:ReservedCodeCacheSize=96m -ea -Dsun.io.useCanonCaches=false -Djava.net.preferIPv4Stack=true -Didea.project.structure.max.errors.to.show=0 -XX:+UseCodeCacheFlushing -XX:+UseConcMarkSweepGC -XX:SoftRefLRUPolicyMSPerMB=50 -XX:+HeapDumpOnOutOfMemoryError -Dawt.useSystemAAFontSettings=lcd -Djb.vmOptionsFile=Documents/programmi/android-studio/bin/studio64.vmoptions -Xbootclasspath/a:Documents/programmi/android-studio/bin/../lib/boot.jar -Didea.paths.selector=AndroidStudioPreview -Didea.platform.prefix=AndroidStudio -Djb.restart.code=88 com.intellij.idea.Main
  Exec=/home/teo/Documents/programmi/android-studio/bin/studio.sh
  StartupNotify=false
  #StartupWMClass=jetbrains-android-studio
  OnlyShowIn=Unity;
  X-UnityGenerated=true
  -----

  I wanted to use this as a model for creating a desktop file for a
  completely unrelated application. So this is what I did:

  I copied the file verbatim to
  ~/.local/share/applications/telegram.desktop

  and then edited it. Its content now is:

  -----
  [Desktop Entry]
  Encoding=UTF-8
  Version=1.0
  Type=Application
  Name=Telegram Desktop
  Path=/home/teo/
  Exec=/home/teo/Documents/programmi/Telegram/Telegram
  StartupNotify=true
  OnlyShowIn=Unity;
  X-UnityGenerated=true
  -----

  You can see that there's absolutely nothing in the first file that
  matches the string "telegram", and also you can see that the second
  file (the one called "telegram.desktop") has "Telegram Desktop" as its
  application name, NOT Android Studio, and doesn't contain anything
  related to "Android Studio".

  
  So, the expected behavior is that if I type "Telegram" in the Dash, an item should be displayed under Applications, with the name Telegram Desktop, and with either the default icon embedded in the executable, if any, or some default icon.

  Instead, I get this: see screenshot.

  It looks like the list of applications got somehow "cached" when I
  created the new file, but it didn't get updated when I modified the
  file.

  If I click on the wrongly-named "Android Studio (etc)" application, it
  does load the correct one, which is Telegram.

  Perhaps this will be fixed at the next reboot, but it shouldn't take a
  reboot.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unity 7.2.2+14.04.20140714-0ubuntu1.1
  ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
  Uname: Linux 3.13.0-34-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CurrentDesktop: Unity
  Date: Tue Sep 16 19:44:17 2014
  InstallationDate: Installed on 2013-10-11 (340 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  SourcePackage: unity
  UpgradeStatus: Upgraded to trusty on 2014-05-24 (115 days ago)

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