Index: compiler/org/eclipse/jdt/internal/compiler/lookup/MethodVerifier15.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/lookup/MethodVerifier15.java,v
retrieving revision 1.69
diff -u -r1.69 MethodVerifier15.java
--- compiler/org/eclipse/jdt/internal/compiler/lookup/MethodVerifier15.java	6 Mar 2007 02:38:51 -0000	1.69
+++ compiler/org/eclipse/jdt/internal/compiler/lookup/MethodVerifier15.java	7 Mar 2007 17:17:01 -0000
@@ -31,12 +31,22 @@
 	int length = oneArgs.length;
 	if (length != twoArgs.length) return false;
 
+	boolean checkAllArgTypesAreConverted = true;
 	for (int i = 0; i < length; i++) {
 		if (!areTypesEqual(oneArgs[i], twoArgs[i])) {
 			// methods with raw parameters are considered equal to inherited methods with parameterized parameters for backwards compatibility
-			if (!one.declaringClass.isInterface() && oneArgs[i].leafComponentType().isRawType())
-				if (oneArgs[i].dimensions() == twoArgs[i].dimensions() && oneArgs[i].leafComponentType().isEquivalentTo(twoArgs[i].leafComponentType()))
+			if (!one.declaringClass.isInterface() && oneArgs[i].leafComponentType().isRawType()) {
+				if (oneArgs[i].dimensions() == twoArgs[i].dimensions() && oneArgs[i].leafComponentType().isEquivalentTo(twoArgs[i].leafComponentType())) {
+					if (checkAllArgTypesAreConverted) {
+						// check that all parameter types are RAW types, if one has been converted to parameterized, then all types must be converted
+						for (int j = 0; j < length; j++)
+							if (oneArgs[j].leafComponentType().isParameterizedType())
+								return false;
+						checkAllArgTypesAreConverted = false;
+					}
 					continue;
+				}
+			}
 			return false;
 		}
 	}