### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: dom/org/eclipse/jdt/core/dom/DefaultBindingResolver.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/dom/org/eclipse/jdt/core/dom/DefaultBindingResolver.java,v
retrieving revision 1.174
diff -u -r1.174 DefaultBindingResolver.java
--- dom/org/eclipse/jdt/core/dom/DefaultBindingResolver.java	19 Apr 2011 19:35:51 -0000	1.174
+++ dom/org/eclipse/jdt/core/dom/DefaultBindingResolver.java	19 Apr 2011 20:14:33 -0000
@@ -117,7 +117,10 @@
 
 	/**
 	 * This map is used to retrieve an old ast node using the new ast node. This is not an
-	 * identity map.
+	 * identity map, as several nested DOM nodes may be associated with the same "larger"
+	 * compiler AST node.
+	 * E.g., an ArrayAllocationExpression "new MyType[1]" will appear as the right-hand value
+	 * for the SimpleType "MyType", the ArrayType "MyType[1]", and the ArrayCreation "new MyType[1]".
 	 */
 	Map newAstToOldAst;
 
@@ -1528,6 +1531,7 @@
 					return getTypeBinding(this.scope.createArrayType(arrayBinding.leafComponentType, arrayType.getDimensions()));
 				}
 				if (typeBinding.isArrayType()) {
+					// 'binding' can still be an array type because 'node' may be "larger" than 'type' (see comment of newAstToOldAst).
 					typeBinding = ((ArrayBinding) typeBinding).leafComponentType;
 				}
 				int index;
@@ -1568,6 +1572,7 @@
 					ArrayBinding arrayBinding = (ArrayBinding) binding;
 					return getTypeBinding(this.scope.createArrayType(arrayBinding.leafComponentType, arrayType.getDimensions()));
 				} else if (binding.isArrayType()) {
+					// 'binding' can still be an array type because 'node' may be "larger" than 'type' (see comment of newAstToOldAst).
 					ArrayBinding arrayBinding = (ArrayBinding) binding;
 					return getTypeBinding(arrayBinding.leafComponentType);
 				}