Here is the trace:
!ENTRY org.eclipse.equinox.p2.director 2 0 2009-02-17 09:07:14.033!MESSAGE Problems resolving provisioning plan.!SUBENTRY 1 org.eclipse.equinox.p2.director 2 0 2009-02-17 09:07:14.033!MESSAGE Unable to satisfy dependency from edu.hawaii.ics.csdl.jupiter 3.4.2 to requiredCapability: osgi.bundle/org.junit/0.0.0.!SUBENTRY 1 org.eclipse.equinox.p2.director 2 0 2009-02-17 09:07:14.033!MESSAGE Unable to satisfy dependency from edu.hawaii.ics.csdl.jupiter 3.4.2 to requiredCapability: osgi.bundle/org.eclipse.jdt.core/0.0.0.!SUBENTRY 1 org.eclipse.equinox.p2.director 2 0 2009-02-17 09:07:14.033!MESSAGE Unable to satisfy dependency from edu.hawaii.ics.csdl.jupiter 3.4.2 to requiredCapability: osgi.bundle/org.eclipse.jdt.ui/0.0.0.!SUBENTRY 1 org.eclipse.equinox.p2.director 2 0 2009-02-17 09:07:14.033!MESSAGE Unable to satisfy dependency from edu.hawaii.ics.csdl.jupiter 3.4.2 to requiredCapability: osgi.bundle/org.eclipse.jdt.launching/0.0.0.
Update: For those of you who need CDT and Jupiter I recommend trying Eclipse Classic and then adding on the CDT plugin. If you still have problems feel free to use the User's Group or contact me directly.