### Eclipse Workspace Patch 1.0
#P org.eclipse.ltk.core.refactoring
Index: src/org/eclipse/ltk/core/refactoring/resource/RenameProjectReferenceChange.java
===================================================================
RCS file: src/org/eclipse/ltk/core/refactoring/resource/RenameProjectReferenceChange.java
diff -N src/org/eclipse/ltk/core/refactoring/resource/RenameProjectReferenceChange.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ src/org/eclipse/ltk/core/refactoring/resource/RenameProjectReferenceChange.java	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,180 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.ltk.core.refactoring.resource;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.SubProgressMonitor;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectDescription;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.ResourcesPlugin;
+
+import org.eclipse.ltk.core.refactoring.Change;
+import org.eclipse.ltk.core.refactoring.ChangeDescriptor;
+import org.eclipse.ltk.internal.core.refactoring.Messages;
+import org.eclipse.ltk.internal.core.refactoring.RefactoringCoreMessages;
+
+/**
+ * {@link Change} that updates project references.
+ * 
+ * @since 3.6
+ */
+public class RenameProjectReferenceChange extends ResourceChange {
+
+	private final String fProjectName;
+	private final String fOldReference;
+	private final String fNewReference;
+	private final long fStampToRestore;
+
+	private ChangeDescriptor fDescriptor;
+
+	/**
+	 * Creates the change.
+	 * 
+	 * @param projectName the name of the project to update
+	 * @param oldReference the name of the old reference
+	 * @param newReference the name of the new reference
+	 */
+	public RenameProjectReferenceChange(String projectName,
+			String oldReference, String newReference) {
+		this(projectName, oldReference, newReference, IResource.NULL_STAMP);
+	}
+
+	/**
+	 * Creates the change with a time stamp to restore.
+	 * 
+	 * @param projectName the name of the project to update
+	 * @param oldReference the name of the old reference
+	 * @param newReference the name of the new reference
+	 * @param stampToRestore the time stamp to restore or {@link IResource#NULL_STAMP} to not restore the
+	 * time stamp.
+	 */
+	protected RenameProjectReferenceChange(String projectName,
+			String oldReference, String newReference, long stampToRestore) {
+		if (isEmpty(projectName) || isEmpty(oldReference)
+				|| isEmpty(newReference)) {
+			throw new IllegalArgumentException();
+		}
+
+		fProjectName= projectName;
+		fOldReference= oldReference;
+		fNewReference= newReference;
+		fStampToRestore= stampToRestore;
+		fDescriptor= null;
+		setValidationMethod(VALIDATE_NOT_DIRTY);
+	}
+
+	/**
+	 * @param s string to check
+	 * @return true if the specified string null or empty and false otherwise
+	 */
+	private static boolean isEmpty(String s) {
+		return s == null || s.length() == 0;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ltk.core.refactoring.Change#getDescriptor()
+	 */
+	public ChangeDescriptor getDescriptor() {
+		return fDescriptor;
+	}
+
+	/**
+	 * Sets the change descriptor to be returned by {@link Change#getDescriptor()}.
+	 *
+	 * @param descriptor the change descriptor
+	 */
+	public void setDescriptor(ChangeDescriptor descriptor) {
+		fDescriptor= descriptor;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ltk.core.refactoring.resource.ResourceChange#getModifiedResource()
+	 */
+	protected IResource getModifiedResource() {
+		return getProject();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ltk.core.refactoring.Change#getName()
+	 */
+	public String getName() {
+		return Messages.format(RefactoringCoreMessages.RenameProjectReferenceChange_name, fProjectName);
+	}
+
+	/**
+	 * Return the new reference name
+	 * 
+	 * @return return the new reference name
+	 */
+	public String getNewReference() {
+		return fNewReference;
+	}
+
+	/**
+	 * Return the old reference name
+	 * 
+	 * @return return the old reference name
+	 */
+	public String getOldReference() {
+		return fOldReference;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ltk.core.refactoring.Change#perform(org.eclipse.core.runtime.IProgressMonitor)
+	 */
+	public Change perform(IProgressMonitor pm) throws CoreException {
+		try {
+			pm.beginTask(Messages.format(RefactoringCoreMessages.RenameProjectReferenceChange_progress_description, fProjectName), 2);
+
+			IProject project= getProject();
+			long currentStamp= project.getModificationStamp();
+			if (fStampToRestore != IResource.NULL_STAMP) {
+				project.revertModificationStamp(fStampToRestore);
+			}
+			IProjectDescription description= project.getDescription();
+			List newProjects= new ArrayList();
+			IProject[] oldProjects= description.getReferencedProjects();
+			for (int i= 0; i < oldProjects.length; i++) {
+				IProject oldProject= oldProjects[i];
+				if (oldProject.getName().equals(fOldReference)) {
+					IProject newProject= ResourcesPlugin.getWorkspace()
+							.getRoot().getProject(fNewReference);
+					newProjects.add(newProject);
+				} else {
+					newProjects.add(oldProject);
+				}
+			}
+
+			description.setReferencedProjects((IProject[])newProjects
+					.toArray(new IProject[newProjects.size()]));
+			pm.worked(1);
+			project.setDescription(description, IResource.FORCE,
+					new SubProgressMonitor(pm, 1));
+
+			return new RenameProjectReferenceChange(fProjectName,
+					fNewReference, fOldReference, currentStamp);
+		} finally {
+			pm.done();
+		}
+	}
+
+	private IProject getProject() {
+		return ResourcesPlugin.getWorkspace().getRoot()
+				.getProject(fProjectName);
+	}
+
+}
Index: src/org/eclipse/ltk/internal/core/refactoring/RefactoringCoreMessages.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.ltk.core.refactoring/src/org/eclipse/ltk/internal/core/refactoring/RefactoringCoreMessages.java,v
retrieving revision 1.40
diff -u -r1.40 RefactoringCoreMessages.java
--- src/org/eclipse/ltk/internal/core/refactoring/RefactoringCoreMessages.java	16 Nov 2009 16:50:14 -0000	1.40
+++ src/org/eclipse/ltk/internal/core/refactoring/RefactoringCoreMessages.java	28 Jun 2010 16:58:38 -0000
@@ -136,6 +136,10 @@
 
 	public static String Refactoring_execute_label;
 
+	public static String RenameProjectReferenceChange_name;
+
+	public static String RenameProjectReferenceChange_progress_description;
+
 	public static String RenameResourceChange_name;
 
 	public static String RenameResourceChange_progress_description;
@@ -160,6 +164,8 @@
 
 	public static String RenameResourceProcessor_error_resource_already_exists;
 
+	public static String RenameResourceProcessor_update_references_change_name;
+
 	public static String Refactoring_redo_label;
 
 	public static String Refactoring_undo_label;
Index: src/org/eclipse/ltk/internal/core/refactoring/RefactoringCoreMessages.properties
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.ltk.core.refactoring/src/org/eclipse/ltk/internal/core/refactoring/RefactoringCoreMessages.properties,v
retrieving revision 1.55
diff -u -r1.55 RefactoringCoreMessages.properties
--- src/org/eclipse/ltk/internal/core/refactoring/RefactoringCoreMessages.properties	20 May 2010 15:22:43 -0000	1.55
+++ src/org/eclipse/ltk/internal/core/refactoring/RefactoringCoreMessages.properties	28 Jun 2010 16:58:38 -0000
@@ -67,6 +67,8 @@
 RefactoringUndoContext_label=Refactoring Undo Context
 
 Refactoring_execute_label=Refactoring - Execute
+RenameProjectReferenceChange_name=Update ''{0}'' project references
+RenameProjectReferenceChange_progress_description=Update ''{0}'' project references
 RenameResourceChange_name=Rename ''{0}'' to ''{1}''
 RenameResourceChange_progress_description=Rename resource
 RenameResourceDescriptor_error_name_not_defined=The rename resource refactoring can not be performed as the new name is invalid
@@ -79,6 +81,7 @@
 RenameResourceProcessor_error_no_parent=Internal Error
 RenameResourceProcessor_error_resource_already_exists=A file or folder with this name already exists
 RenameResourceProcessor_processor_name=Rename Resource
+RenameResourceProcessor_update_references_change_name=Update referencing projects
 Refactoring_undo_label=Refactoring - Undo
 Refactoring_redo_label=Refactoring - Redo
 
Index: src/org/eclipse/ltk/internal/core/refactoring/resource/RenameResourceProcessor.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.ltk.core.refactoring/src/org/eclipse/ltk/internal/core/refactoring/resource/RenameResourceProcessor.java,v
retrieving revision 1.4
diff -u -r1.4 RenameResourceProcessor.java
--- src/org/eclipse/ltk/internal/core/refactoring/resource/RenameResourceProcessor.java	11 Sep 2008 11:57:56 -0000	1.4
+++ src/org/eclipse/ltk/internal/core/refactoring/resource/RenameResourceProcessor.java	28 Jun 2010 16:58:38 -0000
@@ -10,16 +10,23 @@
  *******************************************************************************/
 package org.eclipse.ltk.internal.core.refactoring.resource;
 
+import java.util.ArrayList;
+import java.util.List;
+
 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 
 import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectDescription;
 import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.resources.mapping.IResourceChangeDescriptionFactory;
 
 import org.eclipse.ltk.core.refactoring.Change;
+import org.eclipse.ltk.core.refactoring.CompositeChange;
 import org.eclipse.ltk.core.refactoring.RefactoringChangeDescriptor;
 import org.eclipse.ltk.core.refactoring.RefactoringDescriptor;
 import org.eclipse.ltk.core.refactoring.RefactoringStatus;
@@ -30,6 +37,7 @@
 import org.eclipse.ltk.core.refactoring.participants.RenameProcessor;
 import org.eclipse.ltk.core.refactoring.participants.ResourceChangeChecker;
 import org.eclipse.ltk.core.refactoring.participants.SharableParticipants;
+import org.eclipse.ltk.core.refactoring.resource.RenameProjectReferenceChange;
 import org.eclipse.ltk.core.refactoring.resource.RenameResourceChange;
 import org.eclipse.ltk.core.refactoring.resource.RenameResourceDescriptor;
 import org.eclipse.ltk.internal.core.refactoring.BasicElementLabels;
@@ -123,7 +131,7 @@
 	 * @see org.eclipse.ltk.core.refactoring.participants.RefactoringProcessor#checkFinalConditions(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext)
 	 */
 	public RefactoringStatus checkFinalConditions(IProgressMonitor pm, CheckConditionsContext context) throws CoreException {
-		pm.beginTask("", 1); //$NON-NLS-1$
+		pm.beginTask("", 2); //$NON-NLS-1$
 		try {
 			fRenameArguments= new RenameArguments(getNewResourceName(), isUpdateReferences());
 
@@ -132,6 +140,17 @@
 
 			ResourceModifications.buildMoveDelta(deltaFactory, fResource, fRenameArguments);
 
+			pm.worked(1);
+
+			IProject[] projects= getReferencingProjects();
+			if (projects.length > 0) {
+				for (int i= 0; i < projects.length; i++) {
+					IFile descriptor = projects[i].getFile(IProjectDescription.DESCRIPTION_FILE_NAME);
+					deltaFactory.change(descriptor);
+				}
+			}
+			pm.worked(1);
+
 			return new RefactoringStatus();
 		} finally {
 			pm.done();
@@ -186,16 +205,77 @@
 		try {
 			RenameResourceChange change= new RenameResourceChange(fResource.getFullPath(), getNewResourceName());
 			change.setDescriptor(new RefactoringChangeDescriptor(createDescriptor()));
+
+			if (isUpdateReferences()) {
+				IProject[] projects= getReferencingProjects();
+				if (projects.length > 0) {
+					CompositeChange root= new CompositeChange(change.getName());
+					root.markAsSynthetic();
+					root.add(change);
+					root.add(createUpdateReferencesChange(projects));
+					return root;
+				}
+			}
+
 			return change;
 		} finally {
 			pm.done();
 		}
 	}
 
+	private Change createUpdateReferencesChange(IProject[] projects) {
+		String oldName= getResource().getName();
+		String newName= getNewResourceName();
+
+		CompositeChange updateReferencesChange= new CompositeChange(
+				RefactoringCoreMessages.RenameResourceProcessor_update_references_change_name);
+		for (int i= 0; i < projects.length; i++) {
+			RenameProjectReferenceChange change= new RenameProjectReferenceChange(
+					projects[i].getName(), oldName, newName);
+			updateReferencesChange.add(change);
+		}
+
+		return updateReferencesChange;
+	}
+
 	private String createNewPath(String newName) {
 		return fResource.getFullPath().removeLastSegments(1).append(newName).toString();
 	}
 
+	/**
+	 * If processed resource is a project this method return projects which refer to this one.
+	 * Otherwise it return empty list
+	 * 
+	 * @return list of the referencing projects
+	 */
+	private IProject[] getReferencingProjects() {
+		if (!(getResource() instanceof IProject)) {
+			return new IProject[0];
+		}
+		String name= getResource().getName();
+		IProject[] allProjects= ResourcesPlugin.getWorkspace().getRoot()
+				.getProjects();
+		List projects= new ArrayList(allProjects.length);
+		for (int i= 0; i < allProjects.length; i++) {
+			IProject project= allProjects[i];
+			if (project.exists() && project.isOpen()) {
+				try {
+					IProjectDescription descriptor= project.getDescription();
+					IProject[] referencedProjects= descriptor
+							.getReferencedProjects();
+					for (int j= 0; j < referencedProjects.length; j++) {
+						if (name.equals(referencedProjects[j].getName())) {
+							projects.add(project);
+						}
+					}
+				} catch (Exception e) {
+					// ignore problem projects
+				}
+			}
+		}
+		return (IProject[])projects.toArray(new IProject[projects.size()]);
+	}
+
 	/* (non-Javadoc)
 	 * @see org.eclipse.ltk.core.refactoring.participants.RefactoringProcessor#getElements()
 	 */
#P org.eclipse.ltk.ui.refactoring
Index: src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.java,v
retrieving revision 1.61
diff -u -r1.61 RefactoringUIMessages.java
--- src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.java	21 May 2010 07:16:51 -0000	1.61
+++ src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.java	28 Jun 2010 16:58:40 -0000
@@ -332,6 +332,8 @@
 
 	public static String RenameResourceWizard_page_title;
 
+	public static String RenameResourceWizard_update_references_field_label;
+
 	public static String RenameResourceWizard_window_title;
 
 	public static String SelectRefactoringHistoryControl_deselect_all_label;
Index: src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.properties
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.properties,v
retrieving revision 1.105
diff -u -r1.105 RefactoringUIMessages.properties
--- src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.properties	18 May 2010 09:30:23 -0000	1.105
+++ src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.properties	28 Jun 2010 16:58:40 -0000
@@ -190,6 +190,7 @@
 RenameResourceHandler_title=Rename Resource
 RenameResourceWizard_name_field_label=New na&me:
 RenameResourceWizard_page_title=Rename Resource
+RenameResourceWizard_update_references_field_label=Update &references
 RenameResourceWizard_window_title=Rename Resource
 
 AbstractRefactoringModelMerger_wizard_title=Pending Refactorings
Index: src/org/eclipse/ltk/ui/refactoring/resource/RenameResourceWizard.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/ui/refactoring/resource/RenameResourceWizard.java,v
retrieving revision 1.3
diff -u -r1.3 RenameResourceWizard.java
--- src/org/eclipse/ltk/ui/refactoring/resource/RenameResourceWizard.java	31 Dec 2008 21:13:56 -0000	1.3
+++ src/org/eclipse/ltk/ui/refactoring/resource/RenameResourceWizard.java	28 Jun 2010 16:58:40 -0000
@@ -15,10 +15,12 @@
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 
+import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 
 import org.eclipse.jface.wizard.IWizardPage;
@@ -61,6 +63,7 @@
 
 		private final RenameResourceProcessor fRefactoringProcessor;
 		private Text fNameField;
+		private Button fUpdateReferencesField;
 
 		public RenameResourceRefactoringConfigurationPage(RenameResourceProcessor processor) {
 			super("RenameResourceRefactoringInputPage"); //$NON-NLS-1$
@@ -89,8 +92,17 @@
 					validatePage();
 				}
 			});
-
 			fNameField.selectAll();
+
+			if (isNeedReferenceUpdate()) {
+				fUpdateReferencesField= new Button(composite, SWT.CHECK);
+				fUpdateReferencesField.setText(RefactoringUIMessages.RenameResourceWizard_update_references_field_label);
+				fUpdateReferencesField.setSelection(fRefactoringProcessor
+						.isUpdateReferences());
+				fUpdateReferencesField.setLayoutData(new GridData(GridData.FILL,
+						GridData.BEGINNING, true, false, 2, 1));
+			}
+
 			setPageComplete(false);
 			setControl(composite);
 		}
@@ -108,6 +120,11 @@
 			setPageComplete(status);
 		}
 
+		protected boolean isNeedReferenceUpdate() {
+			//only project have references
+			return fRefactoringProcessor.getResource() instanceof IProject;
+		}
+
 		/* (non-Javadoc)
 		 * @see org.eclipse.ltk.ui.refactoring.UserInputWizardPage#performFinish()
 		 */
@@ -131,6 +148,10 @@
 
 		private void initializeRefactoring() {
 			fRefactoringProcessor.setNewResourceName(fNameField.getText());
+			if (fUpdateReferencesField != null) {
+				fRefactoringProcessor.setUpdateReferences(fUpdateReferencesField
+						.getSelection());
+			}
 		}
 	}
 }
\ No newline at end of file