https://bugs.eclipse.org/bugs/show_bug.cgi?id=445122 is a pretty serious bug causing havoc into any plugins that try to iterate properties as pure strings since equinox for reasons beyond me now stores non-string objects into system properties breaking the contract.

Are we not using a recent enough SR1 or are we just not bundling/using the SR1 plugins that triggers the error ? (1 is m2e logging)