It may happen that ant does not have sufficient heap to zip the plugins
during installation.
Obtained from: Jan Schulz (from the eclipse.tools.jdt newsgroup)
Verified by: Edmond Nolan <eddie@eddienolan.com>
plugins. This basically means that Javadoc help and editor hover
links will work on Eclipse libraries when developing plugins and
SWT applications.
It requires some zipping and unzipping but at least we get the
correct tree installed (much like the available binaries for other
platforms).
Obtained from: Jan Schulz (from the eclipse.tools.jdt newsgroup)