Bug 299680 Loading model deltas should properly process exception and fallback to the base model
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/workbench/ui/internal/Workbench.java
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.core.commands.Category;
import org.eclipse.core.commands.IParameter;
import org.eclipse.core.commands.ParameterizedCommand;
import org.eclipse.core.commands.contexts.ContextManager;
import org.eclipse.core.internal.runtime.PlatformURLPluginConnection;
import org.eclipse.core.runtime.IAdapterManager;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.RegistryFactory;
import org.eclipse.e4.core.commands.ECommandService;
import org.eclipse.e4.core.commands.EHandlerService;
import org.eclipse.e4.core.services.IContributionFactory;
import org.eclipse.e4.core.services.Logger;
import org.eclipse.e4.core.services.context.EclipseContextFactory;
import org.eclipse.e4.core.services.context.IEclipseContext;
import org.eclipse.e4.core.services.context.spi.ContextFunction;
import org.eclipse.e4.core.services.context.spi.ContextInjectionFactory;
import org.eclipse.e4.core.services.context.spi.IContextConstants;
import org.eclipse.e4.ui.bindings.EBindingService;
import org.eclipse.e4.ui.bindings.TriggerSequence;
import org.eclipse.e4.ui.internal.services.ActiveContextsFunction;
import org.eclipse.e4.ui.model.application.MApplication;
import org.eclipse.e4.ui.model.application.MApplicationElement;
import org.eclipse.e4.ui.model.application.MApplicationFactory;
import org.eclipse.e4.ui.model.application.MBindingContainer;
import org.eclipse.e4.ui.model.application.MCommand;
import org.eclipse.e4.ui.model.application.MCommandParameter;