327151 - Schema gen doesn't handle multiple namespace

6 files changed, 326 insertions, 51 deletions

diff --git a/jaxb/plugins/org.eclipse.jpt.jaxb.core.schemagen/src/org/eclipse/jpt/jaxb/core/schemagen/Main.java b/jaxb/plugins/org.eclipse.jpt.jaxb.core.schemagen/src/org/eclipse/jpt/jaxb/core/schemagen/Main.java
index b469e47b82..56f1695e92 100644
--- a/jaxb/plugins/org.eclipse.jpt.jaxb.core.schemagen/src/org/eclipse/jpt/jaxb/core/schemagen/Main.java
+++ b/jaxb/plugins/org.eclipse.jpt.jaxb.core.schemagen/src/org/eclipse/jpt/jaxb/core/schemagen/Main.java
@@ -11,7 +11,6 @@ package org.eclipse.jpt.jaxb.core.schemagen;
 
 import java.io.File;
 import java.io.IOException;
-import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -22,6 +21,7 @@ import javax.xml.transform.Result;
 import javax.xml.transform.stream.StreamResult;
 
 import org.eclipse.jpt.jaxb.core.schemagen.internal.JptJaxbCoreMessages;
+import org.eclipse.jpt.jaxb.core.schemagen.internal.Tools;
 
 /**
  *  Generate a JAXB Schema
@@ -79,14 +79,13 @@ public class Main
 		if(jaxbContext != null) {
 			this.generateSchema(jaxbContext);
 		}
-		String result = (jaxbContext != null) ? 
-				this.bind(JptJaxbCoreMessages.SCHEMA_GENERATED, this.targetSchemaName) : 
-				this.bind(JptJaxbCoreMessages.SCHEMA_NOT_CREATED, this.targetSchemaName);
-		System.out.println(result);
+		else {
+			System.out.println(Tools.bind(JptJaxbCoreMessages.SCHEMA_NOT_CREATED, this.targetSchemaName));
+		}
     }
 	
 	private JAXBContext buildJaxbContext() {
-		System.out.println(this.getString(JptJaxbCoreMessages.LOADING_CLASSES));
+		System.out.println(Tools.getString(JptJaxbCoreMessages.LOADING_CLASSES));
 		JAXBContext jaxbContext = null;
 			try {
 				ClassLoader loader = Thread.currentThread().getContextClassLoader();
@@ -102,7 +101,7 @@ public class Main
 	 }
 	
 	private void generateSchema(JAXBContext jaxbContext) {
-		System.out.println(this.getString(JptJaxbCoreMessages.GENERATING_SCHEMA));
+		System.out.println(Tools.getString(JptJaxbCoreMessages.GENERATING_SCHEMA));
 		System.out.flush();
 		
 		SchemaOutputResolver schemaOutputResolver = 
@@ -125,7 +124,7 @@ public class Main
 					System.out.println(className);
 			}
 			catch (ClassNotFoundException e) {
-				System.err.println(this.bind(JptJaxbCoreMessages.NOT_FOUND, className));
+				System.err.println(Tools.bind(JptJaxbCoreMessages.NOT_FOUND, className));
 			}
 		}
 		System.out.flush();
@@ -139,21 +138,13 @@ public class Main
 			System.err.println(message);
 		}
 		else if(linkedEx != null && linkedEx instanceof ClassNotFoundException) {
-			String errorMessage = this.bind(JptJaxbCoreMessages.CONTEXT_FACTORY_NOT_FOUND, linkedEx.getMessage());
+			String errorMessage = Tools.bind(JptJaxbCoreMessages.CONTEXT_FACTORY_NOT_FOUND, linkedEx.getMessage());
 			System.err.println(errorMessage);
 		}
 		else {
 			ex.printStackTrace();
 		}
 	}
-	
-	private String getString(String key) {
-		return JptJaxbCoreMessages.getString(key);
-	}
-	
-	private String bind(String key, Object argument) {
-		return MessageFormat.format(this.getString(key), argument);
-	}
 
 	// ********** argument queries **********
     
@@ -216,26 +207,60 @@ public class Main
 
 class JptSchemaOutputResolver extends SchemaOutputResolver {
 	
-	private final String targetSchemaName;
+	private final String defaultSchemaName;
 	
-	protected JptSchemaOutputResolver(String targetSchemaName) {
-		this.targetSchemaName = targetSchemaName;
+	protected JptSchemaOutputResolver(String defaultSchemaName) {
+		this.defaultSchemaName = defaultSchemaName;
 	}
 	
 	 @Override
     public Result createOutput(String namespaceURI, String suggestedFileName) throws IOException {
-		String canonicalName = this.canonicalFileName(this.targetSchemaName);
-		File file = new File(canonicalName);
+	        
+        String filePath = (Tools.stringIsEmpty(namespaceURI)) ? 
+        		this.buildFileNameFrom(this.defaultSchemaName, suggestedFileName) : 
+        		this.modifyFileName(namespaceURI);
+	        	
+        filePath = this.canonicalFileName(filePath);
+		File file = new File(filePath);
 		StreamResult result = new StreamResult(file);
 		result.setSystemId(file.toURL().toExternalForm());
+
+		System.out.print(Tools.bind(JptJaxbCoreMessages.SCHEMA_GENERATED, file));
         return result;
     }
 
-	public String canonicalFileName(String fileName) {
-		return canonicalFile(new File(fileName)).getAbsolutePath();
+	 private String buildFileNameFrom(String fileName, String suggestedFileName) {
+
+		 fileName = Tools.stripExtension(fileName);
+				 
+		 if(Tools.stringIsEmpty(fileName)) {
+			 return suggestedFileName;
+		 }
+		 
+		 String number = Tools.extractFileNumber(suggestedFileName);
+		 number = Tools.appendXsdExtension(number);
+		 
+		return fileName + number;
+	 }
+	 
+	 private String modifyFileName(String namespaceURI) throws IOException {
+
+		 String dir = Tools.extractDirectory(this.defaultSchemaName);
+
+		 String fileName = Tools.stripProtocol(namespaceURI);
+		 fileName = fileName.replaceAll("/", "_");		//$NON-NLS-1$
+		 fileName = Tools.appendXsdExtension(fileName);
+
+		String result = (Tools.stringIsEmpty(dir)) ? fileName : dir + File.separator + fileName;
+		
+		return result;
+	 }
+
+	 private String canonicalFileName(String fileName) {
+		return this.canonicalFile(new File(fileName)).getAbsolutePath();
 	}
 	
-	public File canonicalFile(File file) {
+	 private File canonicalFile(File file) {
 		try {
 			return file.getCanonicalFile();
 		} 
diff --git a/jaxb/plugins/org.eclipse.jpt.jaxb.core.schemagen/src/org/eclipse/jpt/jaxb/core/schemagen/internal/Tools.java b/jaxb/plugins/org.eclipse.jpt.jaxb.core.schemagen/src/org/eclipse/jpt/jaxb/core/schemagen/internal/Tools.java
new file mode 100644
index 0000000000..6427661dcd
--- /dev/null
+++ b/jaxb/plugins/org.eclipse.jpt.jaxb.core.schemagen/src/org/eclipse/jpt/jaxb/core/schemagen/internal/Tools.java
@@ -0,0 +1,104 @@
+/*******************************************************************************
+* Copyright (c) 2010 Oracle. 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:
+*     Oracle - initial API and implementation
+*******************************************************************************/
+package org.eclipse.jpt.jaxb.core.schemagen.internal;
+
+import java.io.File;
+import java.text.MessageFormat;
+
+/**
+ *  Tools
+ */
+public final class Tools
+{
+	/** default file name used by the schemagen */
+	static public String GEN_DEFAULT_NAME = "schema";   //$NON-NLS-1$
+	
+	/** empty string */
+	public static final String EMPTY_STRING = ""; //$NON-NLS-1$
+
+	// ********** queries **********
+
+	/**
+	 * Return whether the specified string is null, empty, or contains
+	 * only whitespace characters.
+	 */
+	public static boolean stringIsEmpty(String string) {
+		if (string == null) {
+			return true;
+		}
+		int len = string.length();
+		if (len == 0) {
+			return true;
+		}
+		return stringIsEmpty_(string.toCharArray(), len);
+	}	
+
+	private static boolean stringIsEmpty_(char[] s, int len) {
+		for (int i = len; i-- > 0; ) {
+			if ( ! Character.isWhitespace(s[i])) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	// ********** short name manipulation **********
+
+	/**
+	 * Strip the extension from the specified file name
+	 * and return the result. If the file name has no
+	 * extension, it is returned unchanged
+	 * File#basePath()
+	 */
+	public static String stripExtension(String fileName) {
+		int index = fileName.lastIndexOf('.');
+		if (index == -1) {
+			return fileName;
+		}
+		return fileName.substring(0, index);
+	}
+
+	public static String stripProtocol(String uri) {
+
+		 return uri.replaceFirst("http://", EMPTY_STRING);
+	}
+
+
+	public static String appendXsdExtension(String name) {
+
+		 return name + ".xsd";		//$NON-NLS-1$
+	}
+
+	public static String extractFileNumber(String fileName) {
+
+		 String result = stripExtension(fileName);
+		 if(Tools.stringIsEmpty(result)) {
+			 return EMPTY_STRING;
+		 }
+		 return result.replaceFirst(GEN_DEFAULT_NAME, EMPTY_STRING);
+	}
+
+	public static String extractDirectory(String path) {
+		if( ! path.contains(File.separator)) {
+			return EMPTY_STRING;	
+		}
+		return path.substring(0, path.lastIndexOf(File.separator));
+	}
+	
+	// ********** NLS utilities **********
+
+	public static String getString(String key) {
+		return JptJaxbCoreMessages.getString(key);
+	}
+	
+	public static String bind(String key, Object argument) {
+		return MessageFormat.format(getString(key), argument);
+	}
+}
diff --git a/jaxb/plugins/org.eclipse.jpt.jaxb.eclipselink.core.schemagen/src/org/eclipse/jpt/jaxb/eclipselink/core/schemagen/Main.java b/jaxb/plugins/org.eclipse.jpt.jaxb.eclipselink.core.schemagen/src/org/eclipse/jpt/jaxb/eclipselink/core/schemagen/Main.java
index 3bcf4eac26..2d706c2376 100644
--- a/jaxb/plugins/org.eclipse.jpt.jaxb.eclipselink.core.schemagen/src/org/eclipse/jpt/jaxb/eclipselink/core/schemagen/Main.java
+++ b/jaxb/plugins/org.eclipse.jpt.jaxb.eclipselink.core.schemagen/src/org/eclipse/jpt/jaxb/eclipselink/core/schemagen/Main.java
@@ -11,7 +11,6 @@ package org.eclipse.jpt.jaxb.eclipselink.core.schemagen;
 
 import java.io.File;
 import java.io.IOException;
-import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -22,6 +21,7 @@ import javax.xml.transform.Result;
 import javax.xml.transform.stream.StreamResult;
 
 import org.eclipse.jpt.jaxb.eclipselink.core.schemagen.internal.JptEclipseLinkJaxbCoreMessages;
+import org.eclipse.jpt.jaxb.eclipselink.core.schemagen.internal.Tools;
 import org.eclipse.persistence.jaxb.JAXBContext;
 import org.eclipse.persistence.jaxb.JAXBContextFactory;
 
@@ -80,14 +80,13 @@ public class Main
         if(jaxbContext != null) {
 			this.generateSchema(jaxbContext);
 		}
-		String result = (jaxbContext != null) ? 
-			this.bind(JptEclipseLinkJaxbCoreMessages.SCHEMA_GENERATED, this.targetSchemaName) : 
-			this.bind(JptEclipseLinkJaxbCoreMessages.SCHEMA_NOT_CREATED, this.targetSchemaName);
-		System.out.println(result);
+        else {
+        	Tools.bind(JptEclipseLinkJaxbCoreMessages.SCHEMA_NOT_CREATED, this.targetSchemaName);
+        }
 	}
 	
 	private JAXBContext buildJaxbContext() {
-		System.out.println(this.getString(JptEclipseLinkJaxbCoreMessages.LOADING_CLASSES));
+		System.out.println(Tools.getString(JptEclipseLinkJaxbCoreMessages.LOADING_CLASSES));
         JAXBContext jaxbContext = null;
 		try {
 			ClassLoader loader = Thread.currentThread().getContextClassLoader();
@@ -108,7 +107,7 @@ public class Main
 	}
 	
 	private void generateSchema(JAXBContext jaxbContext) {
-		System.out.println(this.getString(JptEclipseLinkJaxbCoreMessages.GENERATING_SCHEMA));
+		System.out.println(Tools.getString(JptEclipseLinkJaxbCoreMessages.GENERATING_SCHEMA));
 		System.out.flush();
 
     	SchemaOutputResolver schemaOutputResolver = 
@@ -131,7 +130,7 @@ public class Main
 					System.out.println(className);
 			}
 			catch (ClassNotFoundException e) {
-				System.err.println(this.bind(JptEclipseLinkJaxbCoreMessages.NOT_FOUND, className));
+				System.err.println(Tools.bind(JptEclipseLinkJaxbCoreMessages.NOT_FOUND, className));
 			}
 		}
 		System.out.flush();
@@ -145,7 +144,7 @@ public class Main
 			System.err.println(message);
 		}
 		else if(linkedEx != null && linkedEx instanceof ClassNotFoundException) {
-			String errorMessage = this.bind(
+			String errorMessage = Tools.bind(
 				JptEclipseLinkJaxbCoreMessages.CONTEXT_FACTORY_NOT_FOUND, linkedEx.getMessage());
 			System.err.println(errorMessage);
 		}
@@ -157,20 +156,12 @@ public class Main
 	private void handleClassCastException(ClassCastException ex) {
 		String message = ex.getMessage();
 		if(message != null && message.indexOf(CANNOT_BE_CAST_TO_JAXBCONTEXT) > -1) {
-			System.err.println(this.getString(JptEclipseLinkJaxbCoreMessages.PROPERTIES_FILE_NOT_FOUND));
+			System.err.println(Tools.getString(JptEclipseLinkJaxbCoreMessages.PROPERTIES_FILE_NOT_FOUND));
 		}
 		else {
 			ex.printStackTrace();
 		}
 	}
-	
-	private String getString(String key) {
-		return JptEclipseLinkJaxbCoreMessages.getString(key);
-	}
-	
-	private String bind(String key, Object argument) {
-		return MessageFormat.format(this.getString(key), argument);
-	}
 
 	// ********** argument queries **********
     
@@ -233,18 +224,52 @@ public class Main
 
 class JptSchemaOutputResolver extends SchemaOutputResolver {
 	
-	private final String targetSchemaName;
+	private String defaultSchemaName;
 	
-	protected JptSchemaOutputResolver(String targetSchemaName) {
-		this.targetSchemaName = targetSchemaName;
+	protected JptSchemaOutputResolver(String defaultSchemaName) {
+		this.defaultSchemaName = defaultSchemaName;
 	}
-	
+
 	 @Override
     public Result createOutput(String namespaceURI, String suggestedFileName) throws IOException {
 
-        File file = new File(this.targetSchemaName );
+        String filePath = (Tools.stringIsEmpty(namespaceURI)) ? 
+        		this.buildFileNameFrom(this.defaultSchemaName, suggestedFileName) : 
+        		this.modifyFileName(namespaceURI);
+
+		File file = new File(filePath);
         StreamResult result = new StreamResult(file);
         result.setSystemId(file.toURI().toURL().toString());
+
+        System.out.print(Tools.bind(JptEclipseLinkJaxbCoreMessages.SCHEMA_GENERATED, file));
         return result;
     }
+
+	 private String buildFileNameFrom(String fileName, String suggestedFileName) {
+
+		 fileName = Tools.stripExtension(fileName);
+				 
+		 if(Tools.stringIsEmpty(fileName)) {
+			 return suggestedFileName;
+		 }
+		 
+		 String number = Tools.extractFileNumber(suggestedFileName);
+		 number = Tools.appendXsdExtension(number);
+		 
+		return fileName + number;
+	 }
+
+	 private String modifyFileName(String namespaceURI) throws IOException {
+
+		 String dir = Tools.extractDirectory(this.defaultSchemaName);
+
+		 String fileName = Tools.stripProtocol(namespaceURI);
+		 fileName = fileName.replaceAll("/", "_");		//$NON-NLS-1$
+		 fileName = Tools.appendXsdExtension(fileName);
+
+		String result = (Tools.stringIsEmpty(dir)) ? fileName : dir + File.separator + fileName;
+		
+		return result;
+	 }
+
 }
diff --git a/jaxb/plugins/org.eclipse.jpt.jaxb.eclipselink.core.schemagen/src/org/eclipse/jpt/jaxb/eclipselink/core/schemagen/internal/Tools.java b/jaxb/plugins/org.eclipse.jpt.jaxb.eclipselink.core.schemagen/src/org/eclipse/jpt/jaxb/eclipselink/core/schemagen/internal/Tools.java
new file mode 100644
index 0000000000..5a32e4c09c
--- /dev/null
+++ b/jaxb/plugins/org.eclipse.jpt.jaxb.eclipselink.core.schemagen/src/org/eclipse/jpt/jaxb/eclipselink/core/schemagen/internal/Tools.java
@@ -0,0 +1,104 @@
+/*******************************************************************************
+* Copyright (c) 2010 Oracle. 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:
+*     Oracle - initial API and implementation
+*******************************************************************************/
+package org.eclipse.jpt.jaxb.eclipselink.core.schemagen.internal;
+
+import java.io.File;
+import java.text.MessageFormat;
+
+/**
+ *  Tools
+ */
+public final class Tools
+{
+	/** default file name used by the schemagen */
+	static public String GEN_DEFAULT_NAME = "schema";   //$NON-NLS-1$
+	
+	/** empty string */
+	public static final String EMPTY_STRING = ""; //$NON-NLS-1$
+
+	// ********** queries **********
+
+	/**
+	 * Return whether the specified string is null, empty, or contains
+	 * only whitespace characters.
+	 */
+	public static boolean stringIsEmpty(String string) {
+		if (string == null) {
+			return true;
+		}
+		int len = string.length();
+		if (len == 0) {
+			return true;
+		}
+		return stringIsEmpty_(string.toCharArray(), len);
+	}	
+
+	private static boolean stringIsEmpty_(char[] s, int len) {
+		for (int i = len; i-- > 0; ) {
+			if ( ! Character.isWhitespace(s[i])) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	// ********** short name manipulation **********
+
+	/**
+	 * Strip the extension from the specified file name
+	 * and return the result. If the file name has no
+	 * extension, it is returned unchanged
+	 * File#basePath()
+	 */
+	public static String stripExtension(String fileName) {
+		int index = fileName.lastIndexOf('.');
+		if (index == -1) {
+			return fileName;
+		}
+		return fileName.substring(0, index);
+	}
+
+	public static String stripProtocol(String uri) {
+
+		 return uri.replaceFirst("http://", EMPTY_STRING);
+	}
+
+
+	public static String appendXsdExtension(String name) {
+
+		 return name + ".xsd";		//$NON-NLS-1$
+	}
+
+	public static String extractFileNumber(String fileName) {
+
+		 String result = stripExtension(fileName);
+		 if(Tools.stringIsEmpty(result)) {
+			 return EMPTY_STRING;
+		 }
+		 return result.replaceFirst(GEN_DEFAULT_NAME, EMPTY_STRING);
+	}
+
+	public static String extractDirectory(String path) {
+		if( ! path.contains(File.separator)) {
+			return EMPTY_STRING;	
+		}
+		return path.substring(0, path.lastIndexOf(File.separator));
+	}
+	
+	// ********** NLS utilities **********
+
+	public static String getString(String key) {
+		return JptEclipseLinkJaxbCoreMessages.getString(key);
+	}
+	
+	public static String bind(String key, Object argument) {
+		return MessageFormat.format(getString(key), argument);
+	}
+}
diff --git a/jaxb/plugins/org.eclipse.jpt.jaxb.ui/META-INF/MANIFEST.MF b/jaxb/plugins/org.eclipse.jpt.jaxb.ui/META-INF/MANIFEST.MF
index 5004e1c329..5a652de563 100644
--- a/jaxb/plugins/org.eclipse.jpt.jaxb.ui/META-INF/MANIFEST.MF
+++ b/jaxb/plugins/org.eclipse.jpt.jaxb.ui/META-INF/MANIFEST.MF
@@ -12,8 +12,8 @@ Bundle-RequiredExecutionEnvironment: J2SE-1.5
 Require-Bundle: org.eclipse.debug.core;bundle-version="[3.4.0,4.0.0)",
  org.eclipse.jdt.core;bundle-version="[3.4.0,4.0.0)",
  org.eclipse.jdt.ui;bundle-version="[3.4.0,4.0.0)",
- org.eclipse.jpt.jaxb.core;bundle-version="[1.0.0,2.0.0)",
  org.eclipse.jpt.core;bundle-version="[2.3.0,3.0.0)",
+ org.eclipse.jpt.jaxb.core;bundle-version="[1.0.0,2.0.0)",
  org.eclipse.jpt.ui;bundle-version="[2.0.0,3.0.0)",
  org.eclipse.jpt.utility;bundle-version="[1.2.0,2.0.0)",
  org.eclipse.jst.common.project.facet.core;bundle-version="[1.4.200,2.0.0)",
diff --git a/jaxb/plugins/org.eclipse.jpt.jaxb.ui/src/org/eclipse/jpt/jaxb/ui/internal/wizards/schemagen/NewSchemaFileWizardPage.java b/jaxb/plugins/org.eclipse.jpt.jaxb.ui/src/org/eclipse/jpt/jaxb/ui/internal/wizards/schemagen/NewSchemaFileWizardPage.java
index aa53811e71..abe7e0c3d2 100644
--- a/jaxb/plugins/org.eclipse.jpt.jaxb.ui/src/org/eclipse/jpt/jaxb/ui/internal/wizards/schemagen/NewSchemaFileWizardPage.java
+++ b/jaxb/plugins/org.eclipse.jpt.jaxb.ui/src/org/eclipse/jpt/jaxb/ui/internal/wizards/schemagen/NewSchemaFileWizardPage.java
@@ -9,7 +9,10 @@
 *******************************************************************************/
 package org.eclipse.jpt.jaxb.ui.internal.wizards.schemagen;
 
-import static org.eclipse.jpt.core.internal.operations.JpaFileCreationDataModelProperties.*;
+import static org.eclipse.jpt.core.internal.operations.JpaFileCreationDataModelProperties.CONTAINER_PATH;
+import static org.eclipse.jpt.core.internal.operations.JpaFileCreationDataModelProperties.FILE_NAME;
+import static org.eclipse.jpt.core.internal.operations.JpaFileCreationDataModelProperties.PROJECT;
+
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.ResourcesPlugin;
@@ -22,6 +25,7 @@ import org.eclipse.jpt.jaxb.ui.internal.JptJaxbUiMessages;
 import org.eclipse.jpt.utility.internal.StringTools;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.ui.dialogs.WizardNewFileCreationPage;
+import org.eclipse.ui.internal.ide.IDEWorkbenchMessages;
 import org.eclipse.wst.common.frameworks.datamodel.IDataModel;
 
 /**
@@ -65,6 +69,7 @@ public class NewSchemaFileWizardPage extends WizardNewFileCreationPage {
 	public void createControl(Composite parent) {
     	super.createControl(parent);
     	
+    	this.setAllowExistingResources(true);
 		this.setFileName(DEFAULT_SCHEMA_NAME);
     }
 	
@@ -90,7 +95,8 @@ public class NewSchemaFileWizardPage extends WizardNewFileCreationPage {
 		if( ! valid) {
 			return valid;
 		}
-
+		this.overrideFileExistsWarning();
+		
 		valid = this.projectIsJavaProject(this.getProject());
 		if( ! valid) {
 			this.setErrorMessage(JptJaxbUiMessages.NewSchemaFileWizardPage_errorNotJavaProject);
@@ -142,4 +148,15 @@ public class NewSchemaFileWizardPage extends WizardNewFileCreationPage {
 		return containerName;
 	}
 
+	private void overrideFileExistsWarning() {
+		String existsString= IDEWorkbenchMessages.ResourceGroup_nameExists;
+		existsString.toString();
+		
+		existsString = existsString.substring("''{0}''".length(), existsString.length());    //$NON-NLS-1$
+		String message = this.getMessage();
+		if(message != null && message.endsWith(existsString)) { 
+			this.setMessage(null);
+		}
+	}
+
 }