### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java,v
retrieving revision 1.366
diff -u -r1.366 Scope.java
--- compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java	9 Feb 2010 05:14:15 -0000	1.366
+++ compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java	5 Mar 2010 08:26:54 -0000
@@ -880,6 +880,19 @@
 				? memberType.canBeSeenBy(getCurrentPackage())
 				: memberType.canBeSeenBy(enclosingType, enclosingReceiverType))
 					return memberType;
+			// maybe some type in the compilation unit is extending some class in some package
+			// and the selection is for some protected inner class of that superclass
+			// https://bugs.eclipse.org/bugs/show_bug.cgi?id=235658
+			if (enclosingReceiverType == null && this instanceof CompilationUnitScope) {
+				TypeDeclaration[] types = ((CompilationUnitScope)this).referenceContext.types;
+				if (types != null) {
+					for (int i = 0; i < types.length; i++) {
+						if (memberType.canBeSeenBy(enclosingType, types[i].binding)) {
+							return memberType;
+						}
+					}
+				}
+			}
 			return new ProblemReferenceBinding(new char[][]{typeName}, memberType, ProblemReasons.NotVisible);
 		}
 		return null;
#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 1.90
diff -u -r1.90 ResolveTests.java
--- src/org/eclipse/jdt/core/tests/model/ResolveTests.java	29 Oct 2008 15:56:34 -0000	1.90
+++ src/org/eclipse/jdt/core/tests/model/ResolveTests.java	5 Mar 2010 08:27:26 -0000
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * Copyright (c) 2000, 2010 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
@@ -12,10 +12,20 @@
 
 import java.io.IOException;
 
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.jdt.core.*;
+import junit.framework.Test;
 
-import junit.framework.*;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.jdt.core.IClassFile;
+import org.eclipse.jdt.core.ICompilationUnit;
+import org.eclipse.jdt.core.IJavaElement;
+import org.eclipse.jdt.core.IJavaProject;
+import org.eclipse.jdt.core.ILocalVariable;
+import org.eclipse.jdt.core.IMethod;
+import org.eclipse.jdt.core.ISourceRange;
+import org.eclipse.jdt.core.IType;
+import org.eclipse.jdt.core.JavaCore;
+import org.eclipse.jdt.core.JavaModelException;
+import org.eclipse.jdt.core.WorkingCopyOwner;
 
 public class ResolveTests extends AbstractJavaModelTests {
 	ICompilationUnit wc = null;
@@ -2546,5 +2556,38 @@
 		elements
 	);
 }
+// https://bugs.eclipse.org/bugs/show_bug.cgi?id=235658
+// To verify that "open declaration" works for a protected interface, which is
+// an inner type of an extending class's superclass.
+public void testInterfaceX() throws JavaModelException {
+	this.workingCopies = new ICompilationUnit[3];
+	this.workingCopies[0] = getWorkingCopy(
+		"/Resolve/src/test/Bug.java",
+		"package test;\n"+
+		"public class Bug {\n" +
+		"  void foo() {}\n" +
+		"  protected interface Proto {}\n" +
+		"}\n");
+
+	this.workingCopies[1] = getWorkingCopy(
+		"/Resolve/src/test/p1/Type.java",
+		"package test.p1;\n" +
+		"import test.Bug;\n" +
+		"import test.Bug.*\n"+
+		"public class Type extends Bug implements Proto {\n" +
+		"  public Type(int i) {}\n" +
+		"}\n");
+
+	String str = this.workingCopies[1].getSource();
+	int start = str.lastIndexOf("Proto");
+	int length = "Proto".length();
+	IJavaElement[] elements =  this.workingCopies[1].codeSelect(start, length, this.wcOwner);
+
+	assertElementsEqual(
+			"Unexpected elements",
+			"Proto [in Bug [in [Working copy] Bug.java [in test [in src [in Resolve]]]]]",
+			elements
+	);
+}
 
 }