Bug 579101 - Use ConcurrentHashMap for WorkspaceRoot's projectTable Change-Id: I14cd87a08b31699f4fb27b5f92b8e791a58f0111 Signed-off-by: Hannes Wellmann <wellmann.hannes1@gmx.net> Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.resources/+/191507 Tested-by: Mickael Istria <mistria@redhat.com> Reviewed-by: Mickael Istria <mistria@redhat.com>