While trying to install Subclipse into ODM Enterprise (Helios based) the following error appears
An error occurred while installing the items session context was:(profile=SDKProfile, phase=org.eclipse.equinox.internal.p2.engine.phases.Install, operand=null --> [R]com.ibm.icu.source 4.2.1.v20100412, action=org.eclipse.equinox.internal.p2.touchpoint.eclipse.actions.AddSourceBundleAction). The artifact file for osgi.bundle,com.ibm.icu.source,4.2.1.v20100412 was not found.
this happens regardless which Installation is selected (Online/Offline Update Site/ Dropins). Subclipse does not require this plugin.
I found the solution. After reading Forum post I looked in the right direction. This error is completely misleading. In my case it was, that the eclipse directory was owned by admin and I couldn't write. After running Eclipse with admin privileges it worked as expected.