nuxeo-runtime bundles must not be registered twice

A workaround has been set to avoid spurious "Duplicate component name" errors:

commit 356eeedd10ea0e153ca7b6b938a68e934c89d66a
Author: Florent Guillaume <fg@nuxeo.com>
Date:   Sat Apr 12 23:53:27 2008 +0200

    hide the fact that nuxeo-runtime bundles are registered twice

@@ -143,6 +143,12 @@ public class ComponentManagerImpl implements ComponentManager {
     public final void _register(RegistrationInfoImpl ri) {
         ComponentName name = ri.getName();
         if (isRegistered(name)) {
+            if (name.getName().startsWith("org.nuxeo.runtime.")) {
+                // XXX we hide the fact that nuxeo-runtime bundles are
+                // registered twice
+                // TODO fix the root cause and remove this
+                return;
+            }
             String msg = "Duplicate component name: '" + name + "'";
             log.error(msg);
             Framework.getRuntime().getWarnings().add(msg);

This double registration appears on blacklisted nuxeo-runtime components: WARN [localhost-startStop-1] [org.nuxeo.runtime.model.impl.ComponentManagerImpl] Component org.nuxeo.runtime.trackers.files.threadstracking.config was blacklisted. Ignoring. is logged twice.

The root cause is still present:

• update the TODO with the current issue reference
• add a debug log
• maybe accept only two registrations: the current code hides all duplicates on org.nuxeo.runtime.* components
• blacklist and aliases are not properly managed regarding that issue

  ComponentName name = ri.getName();
  if (blacklist.contains(name.getName())) {
      log.warn("Component " + name.getName() + " was blacklisted. Ignoring.");
      return;
  }
  if (reg.contains(name)) {
      if (name.getName().startsWith("org.nuxeo.runtime.")) {
          // XXX we hide the fact that nuxeo-runtime bundles are
          // registered twice
          // TODO fix the root cause and remove this
          return;
      }
      handleError("Duplicate component name: " + name, null);
      return;
  }
  for (ComponentName n : ri.getAliases()) {
      if (reg.contains(n)) {
          handleError("Duplicate component name: " + n + " (alias for " + name + ")", null);
          return;
      }
  }