(per JBDS-1356) Len is seeing a org.eclipse.debug.core.DebugException exception in the log when he starts up a runtime:

!ENTRY org.eclipse.debug.core 4 125 2010-10-06 12:10:14.768
!MESSAGE Error logged from Debug Core:
!STACK 1
org.eclipse.debug.core.DebugException: Terminate failed
at org.eclipse.debug.core.Launch.terminate(Launch.java:263)
at org.eclipse.debug.internal.core.LaunchManager.shutdown(LaunchManager.java:2342)
at org.eclipse.debug.core.DebugPlugin.stop(DebugPlugin.java:605)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:843)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.stop(BundleContextImpl.java:836)
at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:501)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:550)
at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1097)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.decFWSL(StartLevelManager.java:597)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:257)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.shutdown(StartLevelManager.java:215)
at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.suspend(InternalSystemBundle.java:266)
at org.eclipse.osgi.framework.internal.core.Framework.shutdown(Framework.java:690)
at org.eclipse.osgi.framework.internal.core.Framework.close(Framework.java:588)
at org.eclipse.core.runtime.adaptor.EclipseStarter.shutdown(EclipseStarter.java:415)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:198)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
!SUBENTRY 1 org.eclipse.debug.core 4 5010 2010-10-06 12:10:14.770
!MESSAGE Terminate failed