Index: AdvancedQuickAssistProcessor.java
===================================================================
RCS file: /home/eclipse/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/AdvancedQuickAssistProcessor.java,v
retrieving revision 1.21
diff -u -r1.21 AdvancedQuickAssistProcessor.java
--- AdvancedQuickAssistProcessor.java	12 Jan 2005 16:31:45 -0000	1.21
+++ AdvancedQuickAssistProcessor.java	13 Jan 2005 18:20:53 -0000
@@ -1504,6 +1504,11 @@
 		StringLiteral stringLiteral= (StringLiteral) node;
 		String stringValue= stringLiteral.getEscapedValue();
 		
+		// check that string consists of only one part, because "a" + "b" is _single_ StringLiteral
+		if (stringValue.length() != 1 + (valueEnd - valueStart) + 1) {
+			return false;
+		}
+		
 		int firstPos= selectionPos - node.getStartPosition();
 		int secondPos= firstPos + selectionLen;