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1. Once you have all the #Prerequisites installed, launch Eclipse from <Eclipse_Home>/eclipse.
2. By default Eclipse will be launched with Java EE perspective.
3. Select the servers tab as shown in the figure and select New->Server.
   
   
   
   
   
   
4. On the next screen select Download Additional Server Adapters as shown in the figure.
   
   
   
   
   
5. Select Geronimo V2.1 Server Adapter v2.1.7 adapter and select Next.
   
   
   
   
6. Accept the license agreement and select Finish.
   
   
   
   
7. Next screen will ask for confirmation. Select OK. Once done Geronimo V2.1.7 server adapter will be downloaded and installed.
   
   
   
   
8. During the installation, a Selection Needed window will pop up. Click the box of the certification that you trust and select OK to continue the installation
   
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9. Once the adapter is installed you will be prompted to restart the server. Select Yes Restart Now.
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Installing GEP using Eclipse update manager

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1. Once you have all the prerequisites installed. Launch Eclipse from <Eclipse_Home>/eclipse.
2. By default Eclipse will be launched with Java EE perspective.
3. Select Help->Install New Software... from the menu.
   
   
   
   
4. On the next screen select Add... to add repositories.
   
   
   
5. Copy and paste the following site to the Add Repository window and Select OK.
   
   
   

   Code Block
   html html
   http://apache.org/dist/geronimo/eclipse/updates/

   
   
   
6. Expand http://apache.org/dist/geronimo/eclipse/updates/ and select Geronimo v2.1 Server Adapter v2.1.7. Select Next.
   
   
   
   
7. Wait a few seconds while Eclipse resolves dependencies. Once done, the Install window will pop up. Select Next
   
   
8. Accept the license and Select Finish.
   
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9. Installation will start and will take a few minutes. A progress window will display the jars being installed.
   
   
   
   
10. During the installation, a Selection Needed window will pop up. Click the box of the certification that you trust and select OK to continue the installation
    
    
    
    
11. Once GEP is installed you will be prompted to restart. Select Restart Now.
    
    

Manual Installation

Using updatesite.zip

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1. Select Help->About Eclipse Platform.
   
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2. You can see a G icon in the About Eclipse Platform. This confirms the successful installation of GEP. Click the icon.
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3. On the next screen you can view details- License, Plug-in-Details and set the Columns of the table being displayed.
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Uninstalling GEP

1. Select Help->About Eclipse Platform.
   
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2. Select Installation Details.
   
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3. On the next screen, select the Server Adapter you want to uninstall. Select uninstall...
   
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   GEP may be uninstalled in a similar manner in which it was installed.

   Note
   Uninstall does not work well on Ganymede and Galileo, especially for GEP. It will uninstall GEP, but then you can't reinstall it, as it doesn't really get uninstalled. The only way to reinstall GEP in Ganymede is to reinstall Ganymede itself! It's the same for Galileo. See Eclipse Bugzilla 244935 for details, and hopefully a fix soon!