[551239] Fix compilation error with Guava 19+

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=551239
Change-Id: I4c6c65c485635789f531b4bc0b88ae98e8d47f2b
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>
diff --git a/org.eclipse.emf.ecoretools.design/src/org/eclipse/emf/ecoretools/design/service/DesignServices.java b/org.eclipse.emf.ecoretools.design/src/org/eclipse/emf/ecoretools/design/service/DesignServices.java
index 9686aaa..002e40e 100644
--- a/org.eclipse.emf.ecoretools.design/src/org/eclipse/emf/ecoretools/design/service/DesignServices.java
+++ b/org.eclipse.emf.ecoretools.design/src/org/eclipse/emf/ecoretools/design/service/DesignServices.java
@@ -53,7 +53,6 @@
 import org.eclipse.emf.ecore.resource.URIConverter;
 import org.eclipse.emf.ecore.util.Diagnostician;
 import org.eclipse.emf.ecore.util.EcoreUtil;
-import org.eclipse.emf.edit.EMFEditPlugin;
 import org.eclipse.emf.edit.command.AddCommand;
 import org.eclipse.emf.transaction.RecordingCommand;
 import org.eclipse.emf.transaction.TransactionalEditingDomain;
@@ -440,8 +439,8 @@
 	 */
 	public String toCamelCase(EObject any, String from) {
 		if (from != null) {
-			StringBuffer buffer = new StringBuffer(from.length());
-			for (String word : Splitter.on(CharMatcher.WHITESPACE).trimResults().split(from)) {
+			StringBuilder buffer = new StringBuilder(from.length());
+			for (String word : Splitter.on(CharMatcher.whitespace()).trimResults().split(from)) {
 				buffer.append(toU1Case(word));
 			}
 			return buffer.toString();