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Several prerequisites are required to be downloaded and installed. Visit the WTP download site and download the WebTools Platform Runtime 2.0.1 driver along with its prerequisites as mentioned in the Requirements section. Here is the full list of prerequisites:
Alternatively, you can use the ant script (that is used to build the plugin) that will download and unzip everything above (except for the JDK). You can get it from http://svn.apache.org/repos/asf/geronimo/devtools/eclipse-plugin/trunk/eclipse/build.xml. After you download it somewhere (e.g., /temp directory) you can just invoke it for your specific platform using one of these three commands:
See the release notes for additional information.
There a several installation alternatives, but the easiest method is not to download the plugin at all !! It can be installed directly from within WTP by clicking on the Download additional server adapters (shown below) link when defining a server runtime in WTP. Select it, then select Geronimo 2.0.1 and the installation process will begin. To display the New Server Runtime dialog you can do one of the following:
Once the workbench restarts Geronimo 2.0.1 support will be available as shown:
Alternatively, the plugin can be also be installed via the update manager by creating a new remote site pointing to http://www.apache.org/dist/geronimo/eclipse/updates/. Here are the instructions:
Download the plugin from http://archive.eu.apache.org/dist/geronimo/eclipse/2.0.0/ and unzip it into the same directory where all the prereqs are installed (e.g., /eclipse). If you choose this option you must have an installed version of the Geronimo 2.0.1 server somewhere on your system so that you can define a new Geronimo Server configuration.
After installing the Geronimo Eclipse Plugin, whether it is the first installation or a subsequent installation of a newer version, start Eclipse with the -clean option. This allows Eclipse to recognize and use the newest version of the WTP server adapter.