Description Boden 2011-09-07 05:51:23 EDT

Build Identifier: 20100917-0705

We have an OSGi/Equinox product consisting of a number of plugins (I realize a product of features is most likely a better layout -- we are working on this). Each of our product plugins has been provisioned such that they are 'rooted' and hence should be p2 updatable.

To support our updates, we have implemented a simple plugin which essentially provides the same functionality as the p2 console plugin (i.e. prov* commands) except it allows us to install all IUs in a repo in batch mode, rather than 1-by-1 as does the provinstall command. This java impl uses the operations API to perform install/updates. Here's snippet of our code which performs an UpdateOperation:

				UpdateOperation updateOperation = new UpdateOperation(
						new ProvisioningSession(agent));
				IStatus result = updateOperation.resolveModal(new NullProgressMonitor());
				if (result.isOK()) {
					Job job = updateOperation.getProvisioningJob(new NullProgressMonitor());
					job.schedule();
				} else {
					updStrm.println(Messages.getInstance().getString(locale, "updates.existing.error", result.getMessage())); //$NON-NLS-1$
					return;
				}

We are in the process of testing the update functionality. Updating of all of our rooted IUs (plugins) works fine with the exception of 1 (IU) plugin -- com.ibm.cfs.autostarter. When trying to update this particular IU, p2 gives us an error that it cannot be uninstall because other software requires it. I added some debug code and turned on p2 tracing to try and capture some details. The tail of the output upon update looks like this:

[p2] Wed Sep 07 05:24:28 EDT 2011 - [OSGi Console] Projection complete: 984
[p2] Wed Sep 07 05:24:28 EDT 2011 - [OSGi Console] Invoking solver: 1315387468640
[p2] Wed Sep 07 05:24:28 EDT 2011 - [OSGi Console] Satisfiable !
[p2] Wed Sep 07 05:24:28 EDT 2011 - [OSGi Console] Solver solution found: 31

[p2] Wed Sep 07 05:24:28 EDT 2011 - [OSGi Console] null --> [R]com.ibm.cfs.autostarter 2.2.0.0-20110
910
[p2] Wed Sep 07 05:24:28 EDT 2011 - [OSGi Console] [IInstallableUnit property for com.ibm.cfs.autost
arter 2.2.0.0-20110910] org.eclipse.equinox.p2.type.root = null --> true
[p2] Wed Sep 07 05:24:28 EDT 2011 - [OSGi Console] [IInstallableUnit property for com.ibm.cfs.autost
arter 2.2.0.0-20110910] org.eclipse.equinox.p2.internal.inclusion.rules = null --> STRICT
Error updating existing Items. Cause: Operation details
Status INFO: org.eclipse.equinox.p2.operations code=0 Operation details null children=[Status INFO:
org.eclipse.equinox.p2.operations code=10007 "The CFS Auto Starter" cannot be fully uninstalled beca
use other installed software requires it.  The parts that are not required will be uninstalled. null
]

I've been digging for quite some time and am not understanding why this 1 IU has other IUs that depend on it. The impl of this plugin is very simple an implements a BundleTracker which autostarts all bundles. None of our other plugins import/depend on this plugin and this plugin only imports a few org.osgi.framework.* classes.

I've also tried working around this update issue by using provremove, confapply, provinstall to reinstall this particular IU at a new version level (i.e. trying to find some way to update it, even if not pretty). This does not work either and I end up with the initial bundle installed after performing the steps.





Reproducible: Always

Steps to Reproduce:
1. Install our p2 provisioned (updatable) product which consists of a number of rooted plugins.
2. Use the UpdateOperations API to try and update the autostarter IU.
3. View the output
4. Verify the autostarter IU was not updated.