### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core.tests.model
Index: src/org/eclipse/jdt/core/tests/model/ResolveTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/ResolveTests.java,v
retrieving revision 1.73
diff -u -r1.73 ResolveTests.java
--- src/org/eclipse/jdt/core/tests/model/ResolveTests.java	16 Mar 2007 18:35:32 -0000	1.73
+++ src/org/eclipse/jdt/core/tests/model/ResolveTests.java	6 Apr 2007 11:00:58 -0000
@@ -1124,6 +1124,50 @@
 		elements
 	);
 }
+// https://bugs.eclipse.org/bugs/show_bug.cgi?id=180683
+public void testUnicode2() throws JavaModelException {
+	this.workingCopies = new ICompilationUnit[1];
+	this.workingCopies[0] = getWorkingCopy(
+		"/Resolve/src/test/B.java",
+		"package test;\n"+
+		"public class \\u0042 {\n" + 
+		"  void foo() {\n" + 
+		"    \\u0042 var = null;\n" + 
+		"  }\n" + 
+		"}");
+
+	String str = this.workingCopies[0].getSource();
+	int start = str.lastIndexOf("42");
+	int length = "".length();
+	IJavaElement[] elements =  this.workingCopies[0].codeSelect(start, length, this.wcOwner);
+	
+	assertElementsEqual(
+			"Unexpected elements",
+			"B [in [Working copy] B.java [in test [in src [in Resolve]]]]",
+			elements
+		);
+}
+// https://bugs.eclipse.org/bugs/show_bug.cgi?id=180683
+public void testUnicode3() throws JavaModelException {
+	this.workingCopies = new ICompilationUnit[1];
+	this.workingCopies[0] = getWorkingCopy(
+		"/Resolve/src/test/B.java",
+		"package test;\n"+
+		"public class \\u0042 {\n" + 
+		"  void foo() {\n" + 
+		"    \\u004");
+
+	String str = this.workingCopies[0].getSource();
+	int start = str.lastIndexOf("4");
+	int length = "".length();
+	IJavaElement[] elements =  this.workingCopies[0].codeSelect(start, length, this.wcOwner);
+	
+	assertElementsEqual(
+			"Unexpected elements",
+			"",
+			elements
+		);
+}
 /**
  * https://bugs.eclipse.org/bugs/show_bug.cgi?id=47177
  */
#P org.eclipse.jdt.core
Index: codeassist/org/eclipse/jdt/internal/codeassist/SelectionEngine.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/codeassist/org/eclipse/jdt/internal/codeassist/SelectionEngine.java,v
retrieving revision 1.134
diff -u -r1.134 SelectionEngine.java
--- codeassist/org/eclipse/jdt/internal/codeassist/SelectionEngine.java	7 Dec 2006 14:50:05 -0000	1.134
+++ codeassist/org/eclipse/jdt/internal/codeassist/SelectionEngine.java	6 Apr 2007 11:01:00 -0000
@@ -341,6 +341,8 @@
 		int token;
 		
 		if(selectionStart > selectionEnd){
+			// compute end position of the selection
+			int end = selectionEnd + 1 == source.length ? selectionEnd : selectionEnd + 1;
 			
 			// compute start position of current line
 			int currentPosition = selectionStart - 1;
@@ -355,6 +357,16 @@
 						while (source[pos] == 'u') {
 							pos++;
 						}
+						
+						int endOfUnicode = pos + 3;
+						if (end < endOfUnicode) {
+							if (endOfUnicode < source.length) {
+								end = endOfUnicode;
+							} else {
+								return false; // not enough characters to decode an unicode
+							}
+						}
+						
 						if ((c1 = ScannerHelper.getNumericValue(source[pos++])) > 15
 							|| c1 < 0
 							|| (c2 = ScannerHelper.getNumericValue(source[pos++])) > 15
@@ -388,7 +400,7 @@
 			}
 			
 			// compute start and end of the last token
-			scanner.resetTo(nextCharacterPosition, selectionEnd + 1 == source.length ? selectionEnd : selectionEnd + 1);
+			scanner.resetTo(nextCharacterPosition, end);
 			do {
 				try {
 					token = scanner.getNextToken();