8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype...

8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
Reviewed-by: kvn

hotspot/src/share/vm/ci/ciType.cpp

@@ -59,6 +59,19 @@ bool ciType::is_subtype_of(ciType* type) {
   return false;
 }
 
+// ------------------------------------------------------------------
+// ciType::name
+//
+// Return the name of this type
+const char* ciType::name() {
+  if (is_primitive_type()) {
+    return type2name(basic_type());
+  } else {
+    assert(is_klass(), "must be");
+    return as_klass()->name()->as_utf8();
+  }
+}
+
 // ------------------------------------------------------------------
 // ciType::print_impl
 //
@@ -73,7 +86,8 @@ void ciType::print_impl(outputStream* st) {
 //
 // Print the name of this type
 void ciType::print_name_on(outputStream* st) {
-  st->print(type2name(basic_type()));
+  ResourceMark rm;
+  st->print(name());
 }
 
 

hotspot/src/share/vm/ci/ciType.hpp

@@ -77,6 +77,7 @@ public:
   bool is_type() const                      { return true; }
   bool is_classless() const                 { return is_primitive_type(); }
 
+  const char* name();
   virtual void print_name_on(outputStream* st);
   void print_name() {
     print_name_on(tty);

hotspot/src/share/vm/opto/doCall.cpp

@@ -553,7 +553,13 @@ void Parse::do_call() {
         rtype = ctype;
       }
     } else {
-      assert(rtype == ctype, "mismatched return types");  // symbolic resolution enforces this
+      // Symbolic resolution enforces the types to be the same.
+      // NOTE: We must relax the assert for unloaded types because two
+      // different ciType instances of the same unloaded class type
+      // can appear to be "loaded" by different loaders (depending on
+      // the accessing class).
+      assert(!rtype->is_loaded() || !ctype->is_loaded() || rtype == ctype,
+             err_msg_res("mismatched return types: rtype=%s, ctype=%s", rtype->name(), ctype->name()));
     }
 
     // If the return type of the method is not loaded, assert that the