--- a/org.eclipse.equinox.common/src/org/eclipse/core/runtime/Assert.d	Sat Apr 18 13:54:50 2009 +0200
+++ b/org.eclipse.equinox.common/src/org/eclipse/core/runtime/Assert.d	Sat Apr 18 13:58:35 2009 +0200
@@ -79,8 +79,11 @@
     public static void isNotNull(Object object) {
         isNotNull(object, ""); //$NON-NLS-1$
     }
-    public static void isNotNull(String object) {
-        isTrue(object.ptr !is null); //$NON-NLS-1$
+    public static void isNotNull(String str) {
+        isTrue(str.ptr !is null); //$NON-NLS-1$
+    }
+    public static void isNotNull(void* ptr) {
+        isTrue(ptr !is null); //$NON-NLS-1$
     }
 
     /** Asserts that the given object is not <code>null</code>. If this
@@ -94,6 +97,12 @@
         if (object is null)
             throw new AssertionFailedException("null argument:" ~ message); //$NON-NLS-1$
     }
+    public static void isNotNull(String str, String message) {
+        isTrue(str.ptr !is null, message ); //$NON-NLS-1$
+    }
+    public static void isNotNull(void* ptr, String message) {
+        isTrue(ptr !is null, message ); //$NON-NLS-1$
+    }
 
     /** Asserts that the given bool is <code>true</code>. If this
      * is not the case, some kind of unchecked exception is thrown.