--- a/src/share/vm/opto/type.cpp	Fri Feb 27 08:34:19 2009 -0800
+++ b/src/share/vm/opto/type.cpp	Fri Feb 27 13:27:09 2009 -0800
@@ -2455,7 +2455,7 @@
     // code and dereferenced at the time the nmethod is made.  Until that time,
     // it is not reasonable to do arithmetic with the addresses of oops (we don't
     // have access to the addresses!).  This does not seem to currently happen,
-    // but this assertion here is to help prevent its occurrance.
+    // but this assertion here is to help prevent its occurence.
     tty->print_cr("Found oop constant with non-zero offset");
     ShouldNotReachHere();
   }
@@ -2761,7 +2761,7 @@
       // LCA is object_klass, but if we subclass from the top we can do better
       if( above_centerline(_ptr) ) { // if( _ptr == TopPTR || _ptr == AnyNull )
         // If 'this' (InstPtr) is above the centerline and it is Object class
-        // then we can subclass in the Java class heirarchy.
+        // then we can subclass in the Java class hierarchy.
         if (klass()->equals(ciEnv::current()->Object_klass())) {
           // that is, tp's array type is a subtype of my klass
           return TypeAryPtr::make(ptr, tp->ary(), tp->klass(), tp->klass_is_exact(), offset, instance_id);
@@ -3022,7 +3022,7 @@
 
 //------------------------------xdual------------------------------------------
 // Dual: do NOT dual on klasses.  This means I do NOT understand the Java
-// inheritence mechanism.
+// inheritance mechanism.
 const Type *TypeInstPtr::xdual() const {
   return new TypeInstPtr( dual_ptr(), klass(), klass_is_exact(), const_oop(), dual_offset(), dual_instance_id()  );
 }
@@ -3176,7 +3176,7 @@
   bool chg = false;
   if (lo < min_lo) { lo = min_lo; chg = true; }
   if (hi > max_hi) { hi = max_hi; chg = true; }
-  // Negative length arrays will produce weird intermediate dead fath-path code
+  // Negative length arrays will produce weird intermediate dead fast-path code
   if (lo > hi)
     return TypeInt::ZERO;
   if (!chg)
@@ -3358,7 +3358,7 @@
       // LCA is object_klass, but if we subclass from the top we can do better
       if (above_centerline(tp->ptr())) {
         // If 'tp'  is above the centerline and it is Object class
-        // then we can subclass in the Java class heirarchy.
+        // then we can subclass in the Java class hierarchy.
         if( tp->klass()->equals(ciEnv::current()->Object_klass()) ) {
           // that is, my array type is a subtype of 'tp' klass
           return make( ptr, _ary, _klass, _klass_is_exact, offset, instance_id );