Follow up 186755, fixes NPE, CCorePlugin.start() as similar to M7 as possible.

core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/settings/model/CProjectDescriptionManager.java

@@ -277,7 +277,6 @@ public class CProjectDescriptionManager implements ICProjectDescriptionManager {
 	private static CProjectDescriptionManager fInstance;
 
 	private CProjectDescriptionManager(){
-		fDescriptorManager= CConfigBasedDescriptorManager.getInstance();
 	}
 	
 	public static CProjectDescriptionManager getInstance(){
@@ -292,9 +291,8 @@ public class CProjectDescriptionManager implements ICProjectDescriptionManager {
 		return fInstance;
 	}
 
-
+	public Job startup(){
-	public void registerResourceListener() {
+		if(fRcChangeHandler == null){
-		assert fRcChangeHandler == null;
 			fRcChangeHandler = new ResourceChangeHandler();
 
 			ResourcesPlugin.getWorkspace().addResourceChangeListener(
@@ -303,14 +301,18 @@ public class CProjectDescriptionManager implements ICProjectDescriptionManager {
 					| IResourceChangeEvent.PRE_DELETE
 					| IResourceChangeEvent.PRE_CLOSE
 			/*| IResourceChangeEvent.POST_BUILD*/);
+
+			if(fDescriptorManager == null){
+				fDescriptorManager = CConfigBasedDescriptorManager.getInstance();
+				fDescriptorManager.startup();
 			}
 
-	public void startup(){
-		assert fRcChangeHandler != null;
-		fDescriptorManager.startup();
-
 			CExternalSettingsManager.getInstance().startup();
+		}
+		return createPostStartupJob();
+	}
 	
+	private Job createPostStartupJob() {
 		IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
 		Job rcJob = new Job(SettingsModelMessages.getString("CProjectDescriptionManager.0")){ //$NON-NLS-1$
 			protected IStatus run(IProgressMonitor monitor) {
@@ -332,7 +334,7 @@ public class CProjectDescriptionManager implements ICProjectDescriptionManager {
 		rcJob.setRule(root);
 		rcJob.setPriority(Job.INTERACTIVE);
 		rcJob.setSystem(true);
-		rcJob.schedule();
+		return rcJob;
 	}
 
 	/*

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/index/provider/IndexProviderManager.java

@@ -47,7 +47,7 @@ import org.eclipse.core.runtime.Platform;
  */
 public final class IndexProviderManager implements IElementChangedListener {
 	public static final String READ_ONLY_PDOM_PROVIDER= "ReadOnlyPDOMProvider"; //$NON-NLS-1$
-	private IIndexFragmentProvider[] allProviders;
+	private IIndexFragmentProvider[] allProviders= {};
 	private Map provisionMap= new HashMap();
 	
 	public IndexProviderManager() {

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/PDOMManager.java

@@ -166,11 +166,24 @@ public class PDOMManager implements IWritableIndexManager, IListener {
 	private HashMap fUpdatePolicies= new HashMap();
 	private HashMap fPrefListeners= new HashMap();
     
+	public Job startup() {
+		Job postStartupJob= new Job(CCorePlugin.getResourceString("CCorePlugin.startupJob")) { //$NON-NLS-1$
+			protected IStatus run(IProgressMonitor monitor) {
+				postStartup();
+				return Status.OK_STATUS;
+			}
+			public boolean belongsTo(Object family) {
+				return family == PDOMManager.this;
+			}
+		};
+		postStartupJob.setSystem(true);
+		return postStartupJob;	
+	}
+
 	/** 
-	 * Startup the PDOM. This mainly sets us up to handle model
+	 * Called from a job after plugin start.
-	 * change events.
 	 */
-	public void startup() {
+	protected void postStartup() {
 		// the model listener is attached outside of the job in
 		// order to avoid a race condition where its not noticed
 		// that new projects are being created
@@ -899,7 +912,6 @@ public class PDOMManager implements IWritableIndexManager, IListener {
 		}
 		try {
 			try {
-				CCorePlugin.getDefault().joinStartup(monitor);
 				Job.getJobManager().join(this, monitor);
 				return true;
 			} catch (OperationCanceledException e1) {

core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/CCorePlugin.java

@@ -336,47 +336,30 @@ public class CCorePlugin extends Plugin {
 	public void start(BundleContext context) throws Exception {
 		super.start(context);
 
-		// make sure to register the resource listener as the first one in CDT:
+		// do harmless stuff first.
+		cdtLog = new CDTLogWriter(CCorePlugin.getDefault().getStateLocation().append(".log").toFile()); //$NON-NLS-1$
+		configurePluginDebugOptions();
+		getPluginPreferences().setDefault(PREF_USE_STRUCTURAL_PARSE_MODE, false);
+        PositionTrackerManager.getInstance().install();
+
+        // new project model needs to register the resource listener first.
 		fNewCProjectDescriptionManager= CProjectDescriptionManager.getInstance();
-		fNewCProjectDescriptionManager.registerResourceListener();
+		final Job post1= fNewCProjectDescriptionManager.startup();
 
 		fPathEntryVariableManager = new CdtVarPathEntryVariableManager();
-		cdtLog = new CDTLogWriter(CCorePlugin.getDefault().getStateLocation().append(".log").toFile()); //$NON-NLS-1$
+		fPathEntryVariableManager.startup();
+
 		fCoreModel = CoreModel.getDefault();
+		fCoreModel.startup();
 
-		// Fire up the PDOM
 		pdomManager = new PDOMManager();
-
+		final Job post2= pdomManager.startup();
-		//Set debug tracing options
-		configurePluginDebugOptions();
-		
-		// Set the default for using the structual parse mode to build the CModel
-		getPluginPreferences().setDefault(PREF_USE_STRUCTURAL_PARSE_MODE, false);
-
-        PositionTrackerManager.getInstance().install();
 		
         // bug 186755, when started after the platform has been started the jobmanager
         // is no longer suspended. So we have to start a job at the very end to make
         // sure we don't trigger a concurrent plugin activation from within the job.
-        Job postStartupJob= new Job(CCorePlugin.getResourceString("CCorePlugin.startupJob")) { //$NON-NLS-1$
+		post1.schedule();
-			protected IStatus run(IProgressMonitor monitor) {
+		post2.schedule();
-				postStart();
-				return Status.OK_STATUS;
-			}
-			public boolean belongsTo(Object family) {
-				return family == CCorePlugin.this;
-			}
-        };
-        postStartupJob.setSystem(true);
-        postStartupJob.schedule();
-	}
-    
-    
-    protected void postStart() {
-		fNewCProjectDescriptionManager.startup();
-		fPathEntryVariableManager.startup();
-		CoreModel.getDefault().startup();
-		pdomManager.startup();
 	}
     
 	/**
@@ -1263,8 +1246,4 @@ public class CCorePlugin extends Plugin {
 	public ICProjectDescriptionManager getProjectDescriptionManager(){
 		return fNewCProjectDescriptionManager;
 	}
-
-	public void joinStartup(IProgressMonitor monitor) throws OperationCanceledException, InterruptedException {
-		Job.getJobManager().join(this, monitor);	
-	}
 }