Do not log an error when a background job is interrupted by shutdown

Fixes #2025

Author: basilevs

org.eclipse.m2e.core/META-INF/MANIFEST.MF

@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %Bundle-Name
 Bundle-SymbolicName: org.eclipse.m2e.core;singleton:=true
-Bundle-Version: 2.7.4.qualifier
+Bundle-Version: 2.7.500.qualifier
 Bundle-Activator: org.eclipse.m2e.core.internal.MavenPluginActivator
 Bundle-Vendor: %Bundle-Vendor
 Bundle-Localization: plugin

org.eclipse.m2e.core/src/org/eclipse/m2e/core/internal/repository/RepositoryRegistryUpdateJob.java

@@ -21,6 +21,7 @@
 import org.eclipse.core.runtime.Status;
 
 import org.eclipse.m2e.core.internal.Messages;
+import org.eclipse.m2e.core.internal.MavenPluginActivator;
 import org.eclipse.m2e.core.internal.jobs.IBackgroundProcessingQueue;
 import org.eclipse.m2e.core.internal.jobs.MavenJob;
 
@@ -50,6 +51,11 @@ public IStatus run(IProgressMonitor monitor) {
       registry.updateRegistry(monitor);
     } catch(CoreException ex) {
       return ex.getStatus();
+    } catch (IllegalStateException ex) {
+      // Ignore failures on shutdown https://github.com/eclipse-m2e/m2e-core/issues/2025
+      if (MavenPluginActivator.getDefault() != null) {
+        throw ex;
+      }
     }
     return Status.OK_STATUS;
   }

org.eclipse.m2e.feature/feature.xml

@@ -2,7 +2,7 @@
 <feature
       id="org.eclipse.m2e.feature"
       label="%featureName"
-      version="2.9.1.qualifier"
+      version="2.9.200.qualifier"
       provider-name="%providerName"
       plugin="org.eclipse.m2e.core"
       license-feature="org.eclipse.license"